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        What`s New in PIXIE Viewer Revision 2.63 (February 2014) What`s
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1.     2 00  Added    Keep CW    variable to handle Coincidence Window minimum requirement      2 00  replaced all occurrences of Sleep   with Pixie Sleep    Pixie Sleep   calls Sleep    so code  is still not fully OS independent  but replacement of Sleep   with an equivalent Linux function  only has to be made only in Pixie_Sleep   not all throughout the code       2 00  renamed min  max and round functions to avoid potential conflicts with common C  libraries      2 00  Rewrote get ns per _cycle   to be ANSI standard  Changed wait for a short_time   to  take the argument in nanoseconds and updated its use      2 00  removed unnecessary header file pixie_c h  reorganized header files and contents      2 00  Updated copy extract function to include new variables      2 00  Added new output variables CURRENT ICR and CURRENT OORF for current input  count rate and out of range fraction      1 90  Updated hardware driver to PLX version 5 2      1 90  Integrated standard pxisys ini files specifying crate architecture as C library constants and  added support for XIA 14 slot 6U chassis  Includes disentanglement of MaxNumModules   defining crate type  and PRESET MAX MODULES  defining maximum possible number of  modules in system   The latter is now set to 17 independent of the crate used  Thus parameters are  always defined for 17 modules  even if not used   When parsing output data  up to 17 modules  are expected  independent of the current crate setting  i e  in data files created wi
2.   Revision   3   which  affects computation of the serial number  In principle Rev  D modules can be operated  with release 1 40  if error messages for  revision mismatch  are ignored   But see Known  Issues  below     Bug Fixes    1  Updated online help for channel register panel and chassis register panel  especially the  trigger sharing modes 0 3    2  Increased length of intermediate buffer to 4060  was 2044   This also shifts memory  locations of output buffer and user variables in the DSP memory  Programmers should  use the  Ist file to look up DSP memory addresses    This modification allows compressed list mode runs to acquire longer traces or more  events without rejecting new events  as the intermediate buffer is filled as quickly with  events not yet processed into the output buffer  Previously  if the combined trace length  was more than 13 microseconds  only one event at a time could be recorded  i e  the  effective dead time for an event was increased by the processing time  Now this limit is  26 microseconds     Known Issues     1  The double buffer mode introduced in release 1 50 seems to be broken in this release   2  Specific Rev  D modules may show bit errors in waveforms when used with Fippi FPGA  1A3A from release 1 40     What   s New in PIXIE 4 Viewer Revision 1 50  Released on 4 30 2007     Note  This is a limited release for initial testing of the    double buffer    function    New Features     1  This release uses the new    unified    DSP code for 
3.  enabled    Manuals      Programmer  Updated description of Pixie Acquire Data function and of controltasks    Bug Fixes       Igor  Fixed typo in MCA display fit menu text    Igor  Fixed bugs in Gauss Fits  fit limits for spectra scaled in keV  processing file series     Development still in progress       C library  Revise code to compile with    optimized    flag     C library  remove    Update_Filterrange Params    and    Find _Tau    as User_Par_IO arguments   update automatically for first and make a C library controltask for second      DSP Firmware  increase data readout speed from FPGA     FPGA  debug occasional bad traces for very short very long pre trigger trace setting    What   s New in Pixie 4 Viewer Revision 2 01  released August 25  2009     since Revision 1 63    New features and major changes     Revised Igor user interface       1 90  Controls now show parameters for all channels of a module      1 90  Control panels are accessed through a small    MAIN    panel that also repeats the most  commonly used action buttons and controls  In particular it is no longer necessary to switch tabs  to change a parameter  then start a run      1 90  Modified scaling and fit options in MCA spectrum panel      1 90  Added panel and functions to scan through energy filter settings in a series of files   1 90  Requires at least Igor Pro version 5 0   Revd and improved run statistics      1 90  Previous    livetime    was ill defined  It counted the time a channel was activ
4.  live time counter description  factor 2 in OCR ICR  not always correct      Clarified use of runtask 7007  7008 in programmer s manual    What   s New in PIXIE 4 Viewer Revision 2 51  Released July 2012     This is a release of the Pixie Viewer supporting Pixie 4 Rev  E modules  Pixie 4 Rev  E modules are feature and  code compatible with previous hardware versions when using release 2 43 or higher  The following minor  differences exist for Rev  E        lead free RoHS production       SMA front panel connectors extend slightly further for better cable connections       additional connections to backplane lines  for custom applications        revised power suplpy for lower noise       analog signal conditioning section has been updated with high speed relays to minimize distortion for very  fast signals  e g  plastic scintillator or LaBr  without integrating preamplifier   This has the following side  effects      there no longer is an audible click when changing gains     very fast signals may appear with larger amplitude and faster rise times   It is advised to verify that gain and energy filter settings used with Rev  C D modules in applications  with such signals still apply correctly to Rev  E modules        to protect the circuitry and to shield the high speed relays from noise  an optional EMI cover can be added  to the main components side  This cover can be removed by the end user to change clock and input  termination jumpers   Note  This release uses PLX drivers 
5.  options for energy computation    Revised binning for SAUNA variant    Development still in progress       C library  Revise code to compile with    optimized    flag     C library  remove    Update_Filterrange Params    and    Find _Tau    as User_Par_IO arguments   update automatically for first and make a C library controltask for second      DSP Firmware  increase data readout speed from FPGA     FPGA  debug occasional bad traces for very short very long pre trigger trace setting    What   s New in PIXIE 4 Viewer Revision 2 03  Released Nov 20  2009     Bug Fixes       DSP  Fixed bug in E lt 0 option    DSP  System FPGA  Fixed bugs in memory write  causing MCA problems in some modules     Development still in progress       C library  Revise code to compile with    optimized    flag     C library  remove    Update_Filterrange Params    and    Find _Tau    as User_Par_IO arguments   update automatically for first and make a C library controltask for second      DSP Firmware  increase data readout speed from FPGA     FPGA  debug occasional bad traces for very short very long pre trigger trace setting    What   s New in PIXIE 4 Viewer Revision 2 02  Released Oct 15  2009     Code Changes   LabView      Updated LabView interface for software version 2    C library    Updated C functions for updated Lab View interface    DSP code     Decoupled    Estimate E    and    E lt 0    options  previously    Estimate E    meant E lt 0 is accepted even if    E lt 0     not specifically
6.  removed by the end user to change clock and input termination  jumpers   Note  This release uses PLX drivers 6 50  Please refer to the readme file for instructions to upgrade drivers     Code Changes   General      Revised coincidence logic  The common coincidence window for all channels still applies  but each  channel can be delayed individually before starting the window  This is useful to accommodate shorter  cables or shorter energy filters for one or more channel and allows to center the coincidence window at an  arbitrary time difference between channels  no longer only at zero   The smallest possible coincidence  window has been decreased to 40ns    Consequently  the    minimum coincidence wait    is no longer enforced  See descriptions of KEEP_CW   MIN_ COINCIDENCE WAIT  COINCDELAY  RESETDELAY in the Programmer s manual for details     Added flags to list mode output data to indicate pileup  out of range  VETO or GATE occurred  Stored in  channel header word USER_PSA unless overwritten by user DSP code   Pixie 4 only at this time      USER _PSA bits 3 2 1 0   Gate   Pileup   Out of range   Veto      All Pixie 500 timers now have the option to operate at the filter processing rate  That means if selected   timestamps are now in units of 2ns  2 5ns for 400 MHz version  for buffer time  event time and channel  trigger time  Smallest increment of timestamps is 8ns  10ns for 400 MHz version   MODCSRA bit 10  controls this option  if bit 10   1  timestamps are in 2 2 5ns 
7.  the user  A user control panel  allows setting of user DSP variables    8  User functions have been customized for several custom applications     9  Added driver installation section to user manual     What   s New in PIXIE 4 Viewer Revision 1 34  Released on  03 13 2006     1  Updated Programmer   s manual to include descriptions about DSP parameters related to  setting coincidence between modules     2  Updated User   s manual     What   s New in PIXIE 4 Viewer Revision 1 33  Released on  03 03 2006     What s New in the Software    Bug Fixes   3  Fixed bug in updating runtime and output count rate     4  Fixed bug in saving of list mode data from external memory  32 spills at a time  that  caused extra words at end of 32    buffer when run was manually stopped     5  Fixed bug for Igor polling time   0 introduced in Viewer Revision 1 30     What   s New in PIXIE 4 Viewer Revision 1 30  Released on  01 28 2006     What s New in the Software    New Features   1  A module can now accept reject events based on result of coincidence test from  neighboring module s      2  Added new panel showing all run statistics  plus run start stop time and date  This  information can be saved to an  ifm file  if desired  automatically after a run   Run  start stop time are also saved in header of  itx file when saving MCA manually     3  Run statistics can be updated during run     4  Made period for auto update of MCA and statistics selectable     Bug Fixes   1  Fixed bug in copying para
8. 6 50  Please refer to the readme file for instructions to upgrade drivers     Code Changes     C library      Fixed a bug in list mode file processing function which creates  dat file     Fixed a bug in MaxEvents computation     Added list mode file processing function template for users code 0x7010     What   s New in PIXIE 4 Viewer Revision 2 50  Released July 2012     This is a release of the Pixie Viewer supporting Pixie 4 Rev  E modules  Pixie 4 Rev  E modules are feature and  code compatible with previous hardware versions when using release 2 43 or higher  The following minor  differences exist for Rev  E        lead free RoHS production       SMA front panel connectors extend slightly further for better cable connections       additional connections to backplane lines  for custom applications        analog signal conditioning section has been updated with high speed relays to minimize distortion for very  fast signals  e g  plastic scintillator or LaBr  without integrating preamplifier   This has the following side  effects      there no longer is an audible click when changing gains     very fast signals may appear with larger amplitude and faster rise times   It is advised to verify that gain and energy filter settings used with Rev  C D modules in applications  with such signals still apply correctly to Rev  E modules        to protect the circuitry and to shield the high speed relays from noise  an EMI cover is added to the main  components side  This cover can be
9. I backplane lines     Modified module coincidence logic     Modified time stamps latching     Minor changes in waveform capture and trigger generation       Manuals      Updated user and programmer manual for changes described above  Changes in programmer  manual are highlighted  Also updated manual for PXI PDM     Bug Fixes     Igor  Added function to update DSP version after booting  Igor  Increased maximum binning factor to 8  DSP  Increased length of intermediate buffer to 4060  was 2044   This also shifts memory    locations of output buffer and user variables in the DSP memory  Use the  Ist file to look up DSP  memory addresses     DSP  The ACTIVE bit in the CR is now set with minimal delay after runstart  prev  may take  several 100us    C library  Corrected readout of external memory  waiting for CSR bit 7 to clear      1 57  Fixed bug in ControlTasks 3 and 6 where baseline reads from Fippi failed  In  ControlTask 3 this was compensated by using ADC values instead  When ControlTask 6  was used to compute BLcut  the C library function would use a default value when  baseline reads failed  Thus the effect of this error was usually minimal     What   s New in PIXIE 4 Viewer Revision 1 52  Released on 7 27 2007     Note  This is a limited release for revision D modules  serial numbers 250 and higher     New Features     1  This release supports the correct recognition of Rev  D modules  The only difference in  functionality in Rev  D modules is that it announces itself as
10. IXIE 4 Viewer Revision 2 20  Released Jan 28  2011     Code Changes   DSP code and Firmware    Added logic to accept external trigger on front panel to System FPGA   Added option to send Hit of Channel 3 to STATUS line    Setting trigger threshold to zero switched off trigger generation   Added    gate run statistics    option to count live time and rates only when Gate Veto are on and gate time  GDT independent of live    Added polarity option for GDT   Added option to latch status of gate inputs instead of pulsed delayed gate signals     C library    Changed controltasks 0x4 and 0x3 into controltasks 0x84 and 0x83 as they are C  library tasks  Ox4and 0x3  are automatically converted to 0x84 and 0x83 for backward compatibility    Changed    Find_Tau    from User Par IO arguments to controltask 0x81  Old tau finder calls from old  user interface will not work with new C library    Removed    Update _Filterrange Params    as User Par IO argument  now done automatically after changing  filterrange    Igor    Added new controls for above code changes  Revised calls to controltasks 0x3  0x4  to    Find_Tau    and    Update_Filterrange_ Params    for above changes  Added default settings for new PhosWatch detectors    Manual    Updated Programmer and User Manual for above code changes   Updated online help for above code changes   Added 14bit  400 MHz variant to Pixie 500 User Manual and to Programmer Manual  Updated description of double buffer readout in Programmer Manual   Adde
11. Pixie 4 and DGF Rev  F  DSP code  3 50   This has the following differences to earlier versions   DSP parameters     added variable SUMDAC  ChanCSRCx  ModCRSC  NoutA Bx  still unused     moved variable CHANNUM in DSP memory  to just before U00     added EMwords2  Db BufCSR for double buffer readout    DSPBUILDNUMBER encodes the DGF model in upper 4 bits  Pixie 4   0x2    For user DSP code  there are the following changes    made HITPATTERN    hit pattern of current event  accessible to user code    For output data  there are the following changes    Buffer header variable BUFFORMAT is now 0x2000   Runtype  not 0x1000     2  Added double buffer function for module readout  to let host read out data from one  block in external memory while DSP continues to acquire data and write to other block   Rev  C only   See separate document for description    Bug Fixes     1  The ACTIVE bit in the CSR is now set with minimal delay after runstart  previously   may take several 100us     2  Fixed bug in C library during readout of external memory  waiting for bit 7 to clear      What   s New in PIXIE 4 Viewer Revision 1 41  Released on 2 16 2007     New Features     1  Added option to not parse list mode run at end of run  Avoids long wait when taking long  files  but need to load files manually to view events    2  Added option of integrator   3 4 5  acts same as integrator  1  but multiplies energy by  factor 2 4 8     3  Updated manuals with new features    Bug Fixes   3  Fixed bug in m
12. What   s New in PIXIE Viewer Revision 2 63  February 2014     General         Added new user function call in main Igor code  User_HomePaths    This is used to specify  customized DSP and parameter files for customized application  e g  SAUNA  PhosWatch  PSA  automatically at the initial setup    UserVersion is updated to 0x103  Existing Igor User code  modifications in User ipf  are no  longer compatible with release 2 63  However  code will work with old User ipf files unless the  UseHomePaths   macro is executed or bootfiles are not found    To update a customized User ipf  copy the function User_HomePaths  from the file User ipf in  this distribution     PSA Pixie 500       Updated PSA manual with description of Pixie Viewer analysis utilities        Updated User_PSA ipf with User_HomePaths   and removed PSA_Bootfiles function       copied checkbox for breaking run into multiple files to User Control panel    PhosWatch Pixie 4         Modified beta energy calibration routine       Updated default settings for PPW20land added calibration file for PHD write      Corrected spectrum reads from IMS files  space  not tabs        Updated User _PW ipf with User HomePaths         fixed minor bugs in creation of phd file       added PSM parameter description to Programmer s manual    SAUNA Pixie 4         Incorporated and tested latest User file from FOI       recompiled DSP code to latest version       Updated User SAUNA  ipf with User_HomePaths    change default DSP files to late
13. amming routine  clover histogramming now   available in list mode runs also  Emin cutoff also available in MCA runs     2 00  Modified C library to be better ANSI C compliant or at least easier to replace non compliant   functions    1 90  Updated hardware driver to PLX version 5 2  It is therefore necessary to    update drivers    for   each module used  e g  in Window   s Device Manager  Each slot is considered an independent device   and has to be updated individually  New driver files are located in the    drivers    subfolder     1 90  Increased maximum length of trigger filter to allow lowering threshold in noisy systems    1 90  Revised Gate and Veto functions  adding options to invert and stretch delay signals     2 00  revised GATE logic to make selectable the edge  rising falling   that starts Gate Window    1 90  The C library now always expects up to 17 modules for its internal functions  This eliminates   the need for separate settings files for 8 slot and 18 slot chassis  Loading old 8 slot settings files will   generate a warning that the file is incomplete  which can be ignored   When the settings are saved the   file will be in the 18 slot format     e  1 90  Made baseline parameters BLCUT and BLAVG available for user I O in the    Advanced    tab   These parameters are useful for fine tuning settings for best energy resolution    e  1 90  Removed legacy    fast list mode    run types  If DSP still receives a runstart command with a  fast list mode run  it tr
14. apply correctly to Rev  E modules        to protect the circuitry and to shield the high speed relays from noise  an EMI cover is added to the main  components side  This cover can be removed by the end user to change clock and input termination    jumpers    Code Changes   NEC variant      Fixed bug in relay setting for Rev  E module in NEC firmware     Implemented isotope specific out of range flag in NEC firmware    Changed clearing of AUX counter in NEC firmware     Inverted use of ModCSRA bit 8 in NEC firmware     Updated NEC documentation    What   s New in PIXIE 4 Viewer Revision 2 43  Released April 2012     This is the first general release of the Pixie Viewer to support Pixie 4 Rev  E modules  Pixie 4 Rev  E modules are  feature and code compatible with previous hardware versions  The following minor differences exist for Rev  E        lead free RoHS production       SMA front panel connectors extend slightly further for better cable connections       additional connections to backplane lines  for custom applications        analog signal conditioning section has been updated with high speed relays to minimize distortion for very  fast signals  e g  plastic scintillator or LaBr  without integrating preamplifier   This has the following side  effects      there no longer is an audible click when changing gains     very fast signals may appear with larger amplitude and faster rise times   It is advised to verify that gain and energy filter settings used with Rev  C D m
15. assis on the Pixie 4 Start Up Panel  NOTE  for 18 slot chassis  the first module   module  0  must be in the first bus segment  i e  slots 2   6     Resolved a few compatibility issues related to different IGOR PRO versions  mainly  IGOR PRO ver  4 and ver  5     What   s New in PIXIE 4 Viewer Revision 1 20  Released on 08 04 2004     Hardware    Software revision 3 2 0 also supports the new Pixie 4 hardware revision C  Revision C modules  are compatible with Revision B modules  but have the following new features     l   2     The module can be PXI clock master if residing in slot 2     The module can disconnect from backplane trigger lines  which allows several trigger  groups in one chassis     The module can store list data of several runs in the external memory  which can be read  out in a fast burst transfer  reducing read out dead time     The module has additional connections for optional trigger distribution via front panel or  backplane  currently not implemented      The module has a front panel LED to indicate host I O     Revision B and Revision C modules use different configuration files  which are automatically  selected by the software  Note that if both revisions are used together in the same chassis  item 3  is not possible     PIXIE 4 Viewer   IGOR Interface    l     Added a new    Backplane Option    to the Module Register Edit Panel  If set  connect  module trigger lines to backplane  Triggers will be shared with other modules  If not set   triggers are d
16. available from    http   www plxtech com    Development still in progress       C library  Revise code to compile with    optimized    flag    C library  remove    Update_Filterrange Params    and    Find _Tau    as User_Par_IO arguments   update automatically for first and make a C library controltask for second     What   s New in PIXIE 4 Viewer Revision 2 05  Released Apr 6  2010     Code Changes   DSP code and Firmware      Revised readout in double buffer mode to reduce the chance of bad data  For an    emergency stop    when  both halves of the memory are full  the data is now read out such that the 16 buffer per module structure is  maintained  previously there were 32 buffers module for the stop condition  16 buffers module normally        Revised firmware for trace capture  faster waveform readout    Note  This firmware  DSP  Fippi  System  is NOT compatible with previous versions     Settings Files      Added sample Nal and LaBr3 settings files    Bug Fixes     C library  Fixed bug in copying of Filterrange    Development still in progress       C library  Revise code to compile with    optimized    flag     C library  remove    Update_Filterrange Params    and    Find _Tau    as User_Par_IO arguments   update automatically for first and make a C library controltask for second      C library  Add support for 500 MHz module    Pixie 500       What   s New in PIXIE 4 Viewer Revision 2 04  Released Jan 26  2010     Code Changes   DSP code      Expanded    integrator   
17. ble with Igor version 6 03  e g  color of tabs   size of button text     Igor  Separated out the  one  function incompatible with Igor version 4 in a separate procedure  window    Version5plus     This function is optional  if Igor complains about not being able to    compile properly at startup of Pixie interface  delete  close and kill  the procedure window   Note  Future versions of Pixie 4 interface may not be compatible with Igor version 4    DSP  fixed bug in interrupt routine for MCA runs that could cause wrong energies or even cause  module to not finish run  trying to process presumed remaining events due to pointer error    Would occur especially for short coincidence windows or high count rates when new event is  likely while last event not yet fully processed    C library  Fixed incorrect declaration of CSR  WCR variables in    Get_Slow_Trace    function  a  test R amp D function used to capture continuous waveforms from ADC    C library  Corrected Boot command in sample c  from 0x1 to 0x1F  and added note to point out  need to change compile option in defs h when compiling sample exe rather than Igor xop   Firmware  Restructured and recompiled Fippi firmware  fixing bug in energy sum capture  may  have been overwritten during readout   fixing odd behavior for specific values of energy filter  times  and fixing spurious fast triggers observed in some modules    Igor  When storing version information on file  module serial number is now written in decimal  format  
18. ccommodate the time scale from Pixie 500 and Pixie 400   2 14  C library  Fixed bug that caused list mode file parsing to crash in some cases    2 14  Igor  Fixed broken link from    Start Scan    button in optimize tau and optimize filter panels   2 14  Firmware  Fixed bug in group trigger distribution    2 15  Firmware  Fixed bug in gain setting logic  causing gain relays to switch other than expected    For details and description of bug fixes in previous releases please see below  Note  This firmware  DSP  Fippi  System  is NOT compatible with previous versions     What   s New in PIXIE Viewer Revision 2 14  Released Oct  12  2010       C library  Fixed bug that caused list mode file parsing to crash in some cases    Igor  Fixed broken link from    Start Scan    button in optimize tau and optimize filter panels    Firmware  Fixed bug in group trigger distribution    Note  This firmware  DSP  Fippi  System  is NOT compatible with previous versions     What   s New in PIXIE Viewer Revision 2 12  Released Sept  10  2010   Added support for the 400 MHz variant of the Pixie 500    Updated the LabView GUI to accommodate the time scale from Pixie 500 and Pixie 400    What   s New in PIXIE Viewer Revision 2 11  Released July 21  2010     This is the first general release of the Pixie 500 software    Changes   Manuals      Added pictures to description of input jumpers    Development still in progress       C library  remove    Update_Filterrange Params    and    Find _Tau    as U
19. ct of Gate Window start to Gate controls      2 00  Added new output variables ICR and OORF for current input count rate and out of range  fraction to Oscilloscope      2 00  Updated Igor user code variants with changes introduced in 1 6x      2 00  Added POS spectrum to SAUNA variant  cleaned up control panel      1 90  Revised User Interface  Control panels are accessed through a small    MAIN    panel that  also repeats the most commonly used action buttons and controls  Controls now show variables  for all channels of a module       1 90  Revised underlying variable structure  Most display variables are now elements of arrays  that are  one module  copies of the arrays handed down to the C library  Requires at least Igor  Pro version 5 0      1 90  Revised naming of Igor functions and organization of procedure files       1 90  Added BLCUT and BLAVG as    advanced    user parameters  baseline control for  optimizing energy resolution       1 90  Added panel and functions to scan through filter and tau settings while creating a series of  files      1 90  Added panel and function to parse through file series and sum total spectra      1 90  Modified scaling and fit options in MCA display      1 90  Added Run Control options to start and stop at given time date      1 90  Moved manual tau fit to oscilloscope panel      1 90  Added plot of event rates for each update    C library       2 00  Introduced checks to avoid division by zero in computations of the rate parameters  
20. d section on list mode time stamps to User Manual    Bug Fixes     Firmware  Fixed bug in advanced pileup options  disable  invert    DSP  Fixed bug causing one count in bin 2059 of the spectrum at runstart   Firmware  Fixed bug in Pixie 500 group trigger logic causing false coincidences  Firmware  Fixed bug in Pixie 500 FIFO logic causing badly captured waveforms  Firmware  Fixed bug in Pixie 500 timestamp logic causing inconsistent timestamps   C library  Fixed bug in Compute_Maxevents     event buffer length is actually 4060 words    What   s New in PIXIE Viewer Revision 2 16  Released Dec  6  2010     This is a specific release for the Pixie 4 PhosWatch software     Changes   PhosWatch Code and Manuals        files  added default settings files for PW101 102       Igor  Added control panel for basic  spectra only  acquisition      Igor  Updated generation of IMS PHD files       Igor Added control panel for energy calibration        manual  revised manual and added new sections on energy calibration and basic setup operation    General Code        None    What   s New in PIXIE Viewer Revision 2 15  Released Oct  20  2010     This is a general release for Pixie 4 and Pixie 500 modules  Major changes since the last general release   2 02  include      2 10  Upgraded PLX PCI drivers to version 6 3 to allow operation under Windows 7   64 bit   2 11  Added support for the Pixie 500    2 12  Added support for the 400 MHz variant of the Pixie 500    2 12  Updated LabView GUI to a
21. e  i e  able to  issue triggers  and was stopped for the FPGA readout  but not filter dead time  Now livetime  simply counts the time a channel is active  all dead time effects are counted in SFDT for all run  types      1 90  Added SFDT  FTDT and GDT counters to count dead time in slow filter due to pileup  inspection and readout  dead time in trigger filter counting input pulses  and the time a channel  was gated  respectively       1 90  All time counters are measuring    individual    times for a channel  so the  ill defined   channel option was removed      1 90  Added Activated NOUT to count output pulses for each channel      1 90  Added TOTALTIME measuring the time since the DSP received the most recent start run  command  in list mode run  start of first spill   This is the best measure of total lab time passed  since clicking    start run    button  However  this can not count time lost in host PC for issuing  command to DSP  and the clock is only precise to 50ppm  thus may deviate from true lab time      1 90  Changed format of  ifm file to include new counters and rates    2 01  removed support for Rev  B modules    2 00  Added    Keep CW    option to handle Coincidence Window minimum requirement  a  as   before  increase for req minimum  but never decrease  b  always keep at re  minimum  c  ignore req    minimum  Option selected by Igor  or C system global   applied in C library  not stored in DSP   parameters    2 00  Implemented common MCA and list mode histogr
22. eadout     DSPBUILD encodes the DGF model in upper 4 bits  Pixie 4   0x2     added DECIMATION to output block  a copy of input FILTERRANGE     changed usage of MODCSRA  MODULEPATTERN  NNSHAREPATTERN  CHANCSRA    DSP code    RESUME is set to zero at end of run by the DSP  This allows host to resume runs without  having to set the variable explicitly  saving some I O time     User DSP code    made HITPATTERN    hit pattern of current event  accessible to user code    Output data      Buffer header variable BUFFORMAT is now 0x2000   Runtype  not 0x1000     HIT Pattern contains additional status information  See user   s manual table 4 4    Added DSP variable INTEGRATOR to data reported in  ifm file    Igor Interface      Modified RUN Tab to better organize controls for list mode runs    Modified Chassis Register Panel for now coincidence function    Modified call to user routines  User NewFileDuringRun   now called before run is resumed   not  after  added User_UpdateMCA    called after MCA updates     Minor changes in Oscilloscope panel  List mode trace display  List mode spectrum display     1 60  Added Igor function for multi file MCA runs without Igor background task to reduce  filling up of PC s virtual memory    C library      After changing NNSHAREPATTERN  call ControlTask 5 to apply to FPGA and PDM      After changing CONINWAIT or COINCPATTERN  call ControlTask 5 to apply to FPGA     Modified list mode data readout for double buffer mode    Firmware    Modified use of PX
23. eats it as a standard list mode run    e  1 90  Old settings files are slightly incompatible with new settings files due to several changes in  variable definition     Notes    MODCSRA Bit 0 controlled local Bit 0 now ignored Use CHANCSRA bit 13  time stamp option in instead  for each channel  group trigger mode individually     CHANCSRA Bit 1 controlled Bit 1 now ignored Counters always measure     individual livetime    channels independently  option    Bit 9 was reserved Bit 9 now is used to allow negative  energies as a result of the pulse height  computation    ae 13 was reserved Bit 13 now is used for local time  stamp option in group trigger mode    Ca Unused Bit 0 2 control GATE VETO options   Bits 3 6 control advanced pileup  options    FASTADCTHR   Unused  likely zero Must be equal to Trace Delay  in To convert old settings    USERDELAY clock cycles     load    old settings file into  Igor  click into    Trace Delay     control and hit  lt enter gt   then     save           Complete list of changes   Igor       2 01  removed support for Rev  B modules      2 01  Added common plots and control panels to top menu bar    XIA          2 01  Improved appearance of History and FileSeries plots      2 00  Added    Keep CW    option to handle Coincidence Window minimum requirement in  Coincidence tab       2 00  Renamed Igor internal functions and rearranged them in procedure windows for clarity   User function calls remain unchanged       2 00  Added checkbox for edge sele
24. g variables with S8   char       made ErrMSG a global variable      created file    globals c    for variable definition  incl  parameter names previously defined in  parnames h       changed often used variable    index    to    idx    for better Linux compatibility     2 00  Igor  fixed bug for New Files option with 16 16 buffer mode  run was not stopped when   making new files so MCA and run statistics did not reset for each file  cumulating instead over all   files in series   Now MCA and run statistics are cleared for each file     2 00  C library  fixed bug in UA_PAR_IO which would not recognize name   ALL CHANNEL PARAMETERS  looked for VARIABLES instead     2 00  Igor fixed bug that would never let Coincidence Pattern be changed for module number  gt 0    2 00  Igor  fixed bug in    local time    checkboxes in Trigger tab    1 90  Igor  Corrected computation of offline filters from captured waveforms    1 90  Igor  Fixed possible data path error for tables from expert panel    1 90  C library  Removed typo         in some if statements    1 90  DSP  corrected CFD pulse shape analysis to handle differences  gt 32K correctly    Development still in progress       C library  Revise code to compile with    optimized    flag     C library  remove    Update_Filterrange Params    and    Find _Tau    as User_Par_IO arguments   update automatically for first and make a C library controltask for second      DSP Firmware  increase data readout speed from FPGA     FPGA  debug occa
25. is is an intermediate release  limited distribution  on the way to version 1 40    Bug Fixes   1  Fixed bug in adjusting offsets  2  Fixed bug in setting share pattern for module 1 and above    3  Ensured coincwait limit of  200ms is not exceeded    New Features     1  Expanded module coincidence function using wire OR lines  If enabled  the status of 4  module coincidence lines is stored as bits 4 7 in the event hit pattern     2  The front panel input can contribute to one of the wire OR lines used in module coincidence  test     3  In long runs  Igor can now break the output data into several files  incrementing run numbers  every N spills  or N seconds in MCA runs   This is equivalent to clicking the  Start  button  repeatedly     4  If Igor is set to automatically increment run numbers  it makes an attempt to not overwrite  existing files     5  The panel displaying list mode traces now also shows timestamps and PSA values  List mode  data processing uses new routines in the C library  0x7007  0x7008  for the trace display   instead of 0x7002 and 0x7003   The older routines are still working  but their use is not  recommended     6  Modified filter display for list mode traces and added filter display for ADC traces  for best  results  ensure trigger filter time is an integer multiple of the ADC sampling interval     7  Added user plug in procedures to Igor code  The main Igor code calls user functions at start  run  stop run  etc  The user functions can be customized by
26. is now  applied in FPGA  not DSP  saving processing time and improving accuracy of timing  Integrates  better with  revised  module coincidence performed by PXI PDM in slot 2  but limited  coincidence tests can be applied without PDM    1 55  Event time stamps are now latched in FPGA at time of validated trigger  not in DSP after  response to interrupt  This reduces jitter compared to channel time stamps  low words are exactly  synchronized   Run time and buffer start time are still based on DSP timer     1 53  Added new code variant  SAUNA   acquiring 2D spectra     1 52  Support the correct recognition of Rev  D modules  The only difference in functionality in  Rev  D modules is that it announces itself as  Revision   3   which affects computation of the    serial number  In principle Rev  D modules can be operated with release 1 40  if error messages  for  revision mismatch  are ignored    13   1 50  Use new    unified    DSP code for Pixie 4 and DGF 4C Rev  F  DSP code version 3 50 and  higher     14   1 50  Added double buffer function for module readout  to let host read out data from one block  in external memory while DSP continues to acquire data and write to other block  Rev  C  D  only   See programmer   s manual  appendix C for details     Changes   DSP code changes    DSP parameters     added variable SUMDAC  ChanCSRCx  ModCRSC  NoutA Bx  still unused       moved variable CHANNUM in DSP memory  to just before U00      added EMwords2  DbIBufCSR for double buffer r
27. istributed only between channels of this module  depending on channel  settings       Added a new    Read 32 list data buffers per spill    option to the Data Record Option    Panel  This feature is only available in Revision C Pixie 4 modules  Previously  Revision  B modules   the host needs to read out the DSP   s internal 8192 word buffer before it can  resume the next run  Now  the host can choose to store 32 consecutive 8192 word buffers  in DSP   s external memory before it reads out the whole external memory  This will also  improve the data transfer speed since the host can directly access the DSP external  memory using fast burst transfer     PIXIE 4 API  C Driver     Updated driver to accommodate the new hardware features in Revision C modules     Firmware    Updated communication FPGA configurations for Revision C modules     Manuals    l     2     User   s Manual   i  Added descriptions for Revision C clock distribution mode   ii  Added screenshots of Pixie 4 Viewer   iii  Added Pixie 4 functional block diagram     Programmer   s Manual   i  Updated the manual to accommodate the new hardware features in Revision C  modules    ii  Updated description of MODCSRA     What   s New in PIXIE 4 Viewer Revision 1 10  Released on  05 28 2004     PIXIE 4 Viewer   IGOR Interface    l     Improved    Offline Analysis    functionality  Without using a Pixie 4 module  a user can  still excise the features of the Pixie 4 Viewer  or display previously acquired MCA  spectra or lis
28. meter Baseline     2  Added ModuleCSR as a separate item when copying parameters     3  Fixed bug in saving of list mode data from external memory  32 spills at a time  that  caused extra words at end of 32    buffer  freezing software when parsing output data     4  Updated Trigger Filter FPGA to suppress fast triggers when waiting for readout  which  caused occasional wrong timestamps in list mode data due to triggers relatching  timestamps     What   s New in PIXIE 4 Viewer Revision 1 23  Released on  10 04 2005     What s New in the Software    1  Added option to use the MMCX front panel input  labeled DSP OUT  between channels  1 and 2  as an input for GFLT  Veto  signals  The front panel input signal is distributed  over the backplane to all modules  only one module may use this option which is enabled  in software     2  Added support for clover detectors  In MCA runs the DSP can compute the sum of  individual channel energies for events with hits in more than one channel and bin it into  an addback spectrum  Currently spectrum length is fixed to 16K in this mode     What   s New in PIXIE 4 Viewer Revision 1 22  Released on  12 03 2004     What s New in the Software    Speeded up the system booting     Made storing of list mode  dat file optional on the Data Record Option Panel  Since the   dat is saved as a text file so its size could be much bigger than the  bin file     The software now supports 18 slot PXI chassis  A user can select 4 8 slot chassis or 18   slot ch
29. odule coincidence code    4  Fixed bug in CFD computation for compressed list mode runs    What   s New in PIXIE 4 Viewer Revision 1 40  Released on 12 08 2006     New Features     1  Added alternative trigger distribution for systems with  gt 7 modules where signals have to cross  PXI segment boundaries  no wire OR possible     2  Updated description of coincidence window in manual and Igor controls    3  In multi module systems  all offsets are now adjusted simultaneously in all modules    4  Added user code version tracking variables    5  Added option to estimate energy in channels not reporting a hit  e g  below trigger threshold or  piled up     6  Added option to latch timestamps based on local trigger only  not distributed trigger as  before   this provides time of arrival information for channels without the need for waveform  capture    7  Added version tracking register in FPGAs    8  Added description of User_Data for Acquire Data function in Programmers manual    Bug Fixes   1  Fixed bug in polling Rev  B modules  2  Fixed bug in chassis control panel    3  Fixed bug in capturing waveforms that arrive at different times indifferent channels  within  coincidence window     4  Changed max  PCI bus number to 128  for complex PCI bus systems   5  Modified runtask 0x7001 to count also events with hit 0000  6  Added check for BufNData  0 in list mode parsing routines to avoid infinite loop     What   s New in PIXIE 4 Viewer Revision 1 38  Released on  09 21 2006     Th
30. odules in applications  with such signals still apply correctly to Rev  E modules        to protect the circuitry and to shield the high speed relays from noise  an EMI cover is added to the main  components side  This cover can be removed by the end user to change clock and input termination  jumpers    Code Changes   General      Updated Variants for custom applications    DSP  Firmware      Fixed bug in relay setting for Rev  E module     Fixed bug in waveform capture    Fixed bug in    current ICR    measurement    What   s New in PIXIE 4 Viewer Revision 2 40  Released Jan  2012     Code Changes   C library      Added support to read versions and serial numbers of Pixie 4 Rev  E and Pixie 500 Rev  C modules       Added xop and driver files using PLX version 6 3 1 for compatibility with Windows 2000  See readme file  in drivers folder for details     Updated xop project to Visual Studio 2005  Includes updating libraries and headers to XopToolkit  Version 5       Fixed bug causing occasional error in offline booting mode    DSP  Firmware        Added option to average 4 ADC samples per waveform sample  i e  store 4x longer traces at 1   4 the  sampling rate  This option is experimental and not necessarily available in the future     What   s New in PIXIE 4 Viewer Revision 2 32  Released Jan  2012     Code Changes   Igor  C library  DSP        Added new variable names used in a special application      Added controltask for triggered ADC trace capture    Revised usage and de
31. ores    Trace Delay     the amount of pre   trigger waveform  Replaces PAFLENGTH  and TRIGERDELAY in firmware operation   however both these parameters still have to be  set to legal values for backwards  compatibility    Uses address previously used for  FASTADCTHR    after rising edge on GATE input   ieee 3 oS Channel input Sets additional delay between GATE input  and detector input  detector input typically  delayed by  200ns due to ADC and other  analog stages    TOTALTIMEA  C added Module output   Measures time since last runstart command   first spill in list mode runs   Best measure of  total lab time passed since clicking    start  run     but can not account for delays caused by  host PC    AECORR  LECORR  ATCORR  LTCORR Module output    LIVETIMEA  C0  3 definition   Channel output   Previously counted time a channel is active   in List Mode run minus time for FPGA  readout  Now simply counts time a channel is  active  readout and other effects are counted  in SFDT    and thus can not detect new pulses    GCOUNTA  BO  3 Number of pulses on GATE input  NOUTA  BO  3 Number of output counts for this channel    GDTA  C0  3 added Channel output   Counts time GATE is active  length of  GATEWINDOW for each GATE pulse OR  VETO being high     Manual        2 00  Updated list of libraries and headers required for compilation in programmer   s manual   1 90  Updated programmer manual with new user options    1 90  Updated driver readme file    1 90  Added section on run statis
32. r is added to the main  components side  This cover can be removed by the end user to change clock and input termination  jumpers   Note  This release uses PLX drivers 6 50  Please refer to the readme file for instructions to upgrade drivers     Code Changes   NEC variant      Fixed bug in relay isotope specific out of range flag in NEC firmware    PhosWatch variant      Tested version 2 4x  No code change from last release    Standard variant      No code change from last release    What   s New in PIXIE 4 Viewer Revision 2 44  Released May 2012     This is a release of the Pixie Viewer supporting Pixie 4 Rev  E modules  Pixie 4 Rev  E modules are feature and  code compatible with previous hardware versions when using release 2 43 or higher  The following minor  differences exist for Rev  E        lead free RoHS production       SMA front panel connectors extend slightly further for better cable connections       additional connections to backplane lines  for custom applications        analog signal conditioning section has been updated with high speed relays to minimize distortion for very  fast signals  e g  plastic scintillator or LaBr  without integrating preamplifier   This has the following side  effects      there no longer is an audible click when changing gains     very fast signals may appear with larger amplitude and faster rise times   It is advised to verify that gain and energy filter settings used with Rev  C D modules in applications  with such signals still 
33. return value of each of the  API functions  and any negative return value indicates an error in the API  Error  message information and error handling methods can be found in the Programmer   s  Manual     2  Improved the user parameter I O function Pixie User _Par_IO  Now a user parameter  is classified as either a    SYSTEM    parameter  or a    MODULE    parameter  or a     CHANNEL    parameter  Please see the Programmer   s Manual for the detailed  description of these types of parameters     3  Module Number and or Channel Number are now part of the input parameters for  functions Pixie User_Par_IO  Pixie Acquire Data and  Pixie Set_Current_ModChan  This will give API programmers more flexibility when  using these functions     Firmware    No change     Manuals  1  User   s Manual  i  Added the jumper settings for different clock distribution modes   ii  Added descriptions for those new controls added to the Igor interface     2  Programmer   s Manual  i  Rewrote Section 2 where each API function is described     ii  Updated the descriptions of DSP variables in Section 4     
34. scription of    hand down names    function    What   s New in PIXIE 4 Viewer Revision 2 31  Released Jan  2012     Code Changes   C library      Updated PLX drivers to version 6 5 for better compatibility with Windows 7      Windows 2000  and earlier  is no longer supported    What   s New in PIXIE 4 Viewer Revision 2 30  Released Oct  2011     Code Changes   DSP code and Firmware      Revised GDT counters to be active even when run is stopped  in    gate statistics    mode     Revised buffer header time stamps  now kept in FPGA     Make event and channel time stamp pointers available to DSP user code    C library      Update PLX drivers to version 6 4 2 for better compatibility with Windows 7     Revised list mode processing run tasks 0x700x to be more efficient     Improved support for Linux compilation  Includes moving of compiler options and environment variables  into makefiles and Visual Studio project files and global variable name definitions  defs h      Broke up sample c into dedicated programs for booting  acquisition  etc      Debugged 16 16 double buffer mode readout  Emwords no longer cleared to indicate which block to read     Igor      Revised histogram binning for PhosWatch variant    ROOT      Developed sample interface   Available on request     Manual    Added software interface manual for LabView      Minor updates and clarifications    Bug Fixes     C library  Added check for bad boot patterns      Firmware  Debugged polling problem    What   s New in P
35. ser_Par_IO arguments   update automatically for first and make a C library controltask for second     Update trigger distribution between Pixie 500 modules    What   s New in PIXIE 4 Viewer Revision 2 10  Released June 18  2010     Code Changes   C library      Fixed bug in double buffer readout introduced in release 2 05    Added support for 500 MHz module    Pixie 500       Upgraded PLX PCI drivers to version 6 3 to allow operation under Windows 7   64 bit  To upgrade drivers  the following procedure seems to give best results     In Windows  Device Manager  find the Pixie 4 module under    other devices     will appear  as    PLX Custom  OEM  PCI 9054 Board        Double click on the device to open the device property window    Select the    Driver    tap    Click    Update Driver       Windows will suggest to find drivers using Windows Update  select    NO    and click Next    Inthe next screen  select    Dont search  I will choose driver    and click Next    Inthe next screen  select    Have disk    and browse to PLXSDK inf in the drivers directory  of the Pixie 4 software   If a driver version 6 3 1 is shown  you may select it instead of  clicking    Have disk        If Windows complains about unknown unsigned driver  click    continue anyway       Verify the device property window shows driver version 6 3 1    Note  In Windows 7  the unsigned driver may prevent completion of the installation  The current  workaround is to install the free PLX software development kit  
36. sional bad traces for very short very long pre trigger trace setting    What   s New in PIXIE 4 Viewer Revision 1 63  Released Dec 10  2008     Changes   DSP code changes      User Code now has option to prevent binning of a channel   s energy into the spectrum and to  reject events  all 4 channels  from the list mode output buffer  in compressed run types only      Created new DSP variant for dual spectra from phoswich  rise time discrimination      Updated DSP variant to suppress events  or channel   s waveform capture  based on user defined  energy threshold  includes addition to module coincidence function to synchronize event readout  between modules     Firmware      Added function to module coincidence to synchronize event readout between modules    Igor      Updated application specific user interfaces    Manual      Updated programmer manual with new user options    Bug Fixes       DSP  energies computed to greater than 64K are now set to zero  previously rolled over     DSP  fixed bugs in DSP variant computing 2D spectra from phoswich detector signals    What   s New in PIXIE 4 Viewer Revision 1 62  Released Sept 10  2008     Bug Fixes       DSP  C library  Igor  Fixed bugs causing corrupted list mode data files  Igor polling improperly   C lib not checking if data is ready  DSP not counting properly in 32x or double buffer mode     What   s New in PIXIE 4 Viewer Revision 1 61  Released May 6  2008     Bug Fixes     Igor  Modified panel controls to be better compati
37. st  was 402       minor tweaks in appearance of SAUNA panel       modify IMS read to not expect tabs for 1D spectra    What   s New in PIXIE Viewer Revision 2 62  January 2014     PhosWatch Pixie 4         Fixed bug in DSP code corrupting LM files       Modified averaging reoutine for gain stabilization       Created default settings and macro for PPW201       Updated default settings and macro for PW101       Fixed bug in Igor energy calibration routines       Updated PW manual  type 17 events   vetoed LED pulses     PSA Pixie 500         add timestamp and channel number to PSA table        set first 4 values of waveforms to NAN for all channels      Updated PSA manual    What   s New in PIXIE Viewer Revision 2 60 2 61  October 2013     Code Changes         Fixed bug in accessing settings files in offline mode       Fixed bug and added time stamp in dt3 text files       Added ZDT and online PSA option in P500 firmware  FPGA       Fixed bugs in DSP PSA computations       Added Igor functions to plot PSA outputs       Created custom    technician    interface    What   s New in PIXIE 4 Viewer Revision 2 52 55  Spring Summer 2013     Recompiled DLL for LabView      Recompiled MPI variant      Added a number of new User Channel variables for PMT gain stabilization      Added list mode processing into dt3 and dt4 text files      Added option to globally suppress events with one channel going out of range  low       Fix bug in time scale of oscilloscope during refresh      Clarify
38. t mode data     Added a new functionality for the automatic update of MCA spectra every 5 seconds  It  can be enabled by clicking on the option    Update MCA every 5 seconds or spills    on the     Data Record Option Panel     accessible through    Run    tab   gt     Record    button      Added a new    Update    button on the MCA Spectrum panel  A user can click on it to  update the MCA spectrum while a MCA or list mode run is in progress     Expanded the functionality of the    Sum    button on the MCA Spectrum panel  Now a user  has three options for summing a MCA spectrum   1  Sum Background between limits    2  Sum between limits   3  Sum complete MCA     Expanded the functionality of the file I O on the MCA Spectrum panel  Now a user has  three options for importing or exporting a MCA spectrum   1  Save MCA to an Igor text  file   2  Read MCA from an Igor text file   3  Extract MCA from a MCA binary file       Added a    More Less    button to the Pixie4 Run Control Panel  next to the    Help    button    on the bottom of the Control Panel   It can be used to hide some controls  This may be  helpful to those first time Pixie users who only need to use those major controls in the  beginning     PIXIE 4 API  C Driver     This new version of Pixie 4 API is a major overhaul compared to the previous releases in the  following aspects     1  Streamlined the error message relay from the bottom layer of the API to the host  computer  The host computer program should check the 
39. th an 18 slot  crate  module numbers  gt 7 are recognized even if the current setting is an 8 slot crate  Also  removes need for crate dependent settings files       1 90  Revised UA_PAR_IO for clarity  all user parameters are now checked for legal limits   UA_PAR IO and related functions moved to separate file      1 90  Revised computation of minimum coincidence wait to only include    good    channels      1 90  Added function to explicitly recomputed BLCUT for all channels of a module      1 90  Replaced addresses in PCI register I O with constants defined in defs h      1 90  Revised automatic determination of BLCUT    DSP code changes       2 01  Added option to use baseline averages instead of short base sum B in Phoswich PSA      2 00  Implemented common MCA and list mode histogramming routine  clover histogramming  now available in list mode runs also  Emin cutoff also available in MCA runs       2 00  Added new output variables ICR and OORF for current input count rate and out of range  fraction      2 00  Updated DSP code variants with changes introduced in 1 6x       2 00  Added POS spectrum to SAUNA variant      1 90  Added user option to allow energies  lt 0      1 90  Updated default values for input parameters after power up     1 90  Created new user variant  NEC       1 90  Removed unused DSP parameters      1 90  Revised and improved run statistics      1 90  Changed DSP parameters     change  change    FASTADCTHRO  3 Channel input    USERDELAY0  3 added St
40. tics to user manual    1 90  200  Revised updated user manual sections on Pixie Viewer  Gate Veto functions   troubleshooting    1 90  2 00  Revised updated online help for new panels and functions    Firmware     2 00  revised GATE logic to make selectable the edge  rising falling   that starts Gate Window   1 90  Revised waveform capture logic to reduce dead time    1 90  Added function to module coincidence to synchronize event readout between modules   1 90  Revised and improved run statistics    1 90  Increased maximum length of trigger filter to allow lowering threshold in noisy systems   1 90  Added advanced pileup control options  disable  invert  pause  and option to disable out   of range rejection    Bug Fixes      2 01  Igor  removed unused  commented code    2 01  Igor  Fixed function call error from Expert Panel    2 01  Igor  Periodic auto updates of Run statistics and MCA are now based on time  not spills    even in list mode Run statistics can be enabled for updates without updating MCA  which takes   time     2 01  DSP  fixed bug in computation of TOTALTIME when clocks are synchronized    2 01  DSP  fixed bug causing bad run statistics after ending a run by user stop  timeout  or buffer   full condition     2 01  DSP  fixed bug causing event time stamps to be cleared every run     2 01  DSP  fixed bug in memory readout in 16 16 buffer mode    2 01  C library  Cleaned up code to reduce compiler warnings and added minor improvements       replaced U8 for strin
41. units     Igor    Fixed bug in ADC filter plot  Threshold now indicated correctly for Pixie 500    C library      Fixed bug in runtask 0x7004 0x7006 that returned data in wrong output format  main use is in phoswich  variant     DSP  Firmware      Connected VETO signal in Pixie 500 firmware    A trigger threshold of 0 disables trigger  now also in Pixie 500    What   s New in PIXIE 4 Viewer Revision 2 45  Released June 2012     This is a release of the Pixie Viewer supporting Pixie 4 Rev  E modules  Pixie 4 Rev  E modules are feature and  code compatible with previous hardware versions when using release 2 43 or higher  The following minor  differences exist for Rev  E        lead free RoHS production       SMA front panel connectors extend slightly further for better cable connections       additional connections to backplane lines  for custom applications        analog signal conditioning section has been updated with high speed relays to minimize distortion for very  fast signals  e g  plastic scintillator or LaBr  without integrating preamplifier   This has the following side  effects      there no longer is an audible click when changing gains     very fast signals may appear with larger amplitude and faster rise times   It is advised to verify that gain and energy filter settings used with Rev  C D modules in applications  with such signals still apply correctly to Rev  E modules        to protect the circuitry and to shield the high speed relays from noise  an EMI cove
42. was hex     Manuals  Updated release number to 1 61    Manuals  Removed last table in PDM manual and corrected the stated output count rate for  random pulses in module coincidence firmware to  18 000 counts s     What   s New in PIXIE 4 Viewer Revision 1 60  Released on 3 31 2008   since Revision 1 41    New Features     l   2     3     10      1 53  Minor modifications to ensure compatibility with Igor 6   12      1 60  Updated PXI PDM manual    1 60  Added Igor function for multi file MCA runs without Igor background task to reduce  filling up of PC s virtual memory    1 60  verified Igor  version 6  and Pixie 4 software work ok with Windows Vista  Vista   s     transparent    Window frames make Igor look odd  but no problem in performance     1 56  Revised module coincidence  PXI PDM in slot 2 can obtain full 48 bit hit pattern from  modules in slots 3 14 and make an accept reject decision specified by user     1 56  Changed default settings file to depend on    local    coincidence test  Older files  pre 1 55   lack this entry in the MODULEPATTERN variable and thus do never accept events     1 56  Added function to oscilloscope to capture a pulse  repeating    refresh    until waveforms  have variations of more than 100 ADC steps   This is useful to view traces in low count rate  applications     1 56  Report status of front panel input at time of event in list mode data  hit pattern     1 55  Revised Firmware and DSP code for improved coincidence test  Coincidence test 
    
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