DT5800D User Manual - Digital Detector Emulator
Contents
1. Scan Now There is no updates for this software If the emulator is not listed check the connection and press Scan Now If you do not have hardware connected you can start the software in simulation mode by checking SOFTWAREEMULATOR Identified the emulator verify that the program has put the check mark next to the name Then press Connect All and wait for the physical connection attempt to the hardware Connection in Progress Hardware device Detector Emulator A FTWI CMJA le Opening usb controller OK Loading GUI The GUI start corresponds to the end of the process The whole operation could take up to 30 CAEN S P A DT5800D User Manual 13 CAEN D Electronic Instrumentation First Run The first time the software runs you must import the calibration file The software automatically detects the absence of it and advances a query for loading The file is contained in the Calibration folder on the on the mass storage support delivered a Missing calibration files Software could not detect the calibration file for this instruments Please specify a location forthe calibration file Path __GetFromWeb __ Use Defaut Load Usually the calibration file is on the installation CD ROM in the folder calibration In case of failure of the file research the standard calibration procedure described in the Section Calibration can be executed The function2. Get From Web allows downloading on the host the calibration parameters related to your DDE from the website detectoremulator com CAEN S P A DT5800D User Manual 14 CAEN D Electronic Instrumentation User Interface The picture shows the main panel of the User Interface Di CAEN Nuclear Instruments Interface CH2 RATE kcps Repetitive em d Poisson No Pileup Upto 16 Digital RC AMPLITUDE dac LSB 1 RATE kcps Repetitive ei Poisson O No Pileup Up to 16 tos 1000 Digtal RC AMPLITUDE dac LSB Single Line a S Spectrum 10 00 ov 16 000 BR SHAPE Rise Time us Tau us a 10 00 8 0 02 B NOISE LSB P KR NOISE LSB A Si Y 4 K J 2 2 er 4 4 Y A y o B D Aways on top The interface is partitioned in two main distinct areas plus a fast control panel and a report line fixed at the bottom of the display The report line returns the true generation conditions of both channels labeled as and B In particular CMC ME Live Gr CE Ideal number of events that should be generated in accordance with the programmed statistic Number of events actually generated that is limited due to pile up or to saturation of the output analog stage in case of analog exponential Ratio between the number of pulses that should be generated and the number of events actually generated
3. Input 1 Input 2 All signals are considered normally in the low LVCMOS state and active in correspondence of transitions to high LVCMOS state Disable disabling of the gate Gate 1 Gate 2 the internal trigger of pulses is put in AND with an external signal of trigger S Gate 1 S Gate 2 the Strong Gate signal inhibits instantaneously the output signal Trigger 1 Trigger 2 the pulse generation is synchronized with the switching of the input signal Care should be paid to the uncertainty in the generation time due to the sampling period of the input signal equal to 8 ns Run Stop on off control of the internal LFSRs remote control of pJ and dl Step Over generation process advanced by one step remote control of Reser LFSR Restart Memory reset of the status of the LSFRs that returns to the seed value set initially remote control of G Baseline Reset B reset of the value of the baseline CAEN S P A DT5800D User Manual 22 CAEN Electronic Instrumentation Connector Router Disabled Gate 1 Gate 2 S Gate 1 S Gate 2 Trigger 1 Trigger Input A Run Stop Step Over Reset LFSR Restart Memory 2 060 A A A O Baseline Reset 1 Disabled Gate 1 Gate 2 S Gate 1 5 Gate 2 Trigger 1 Troger 2 Run Stop Step Over Reset LFSR Restart Memory E e e e s Baseline Reset 2 Disabled Accepted Tnooer Trigger ON OFF Machine Overloaded vk W
4. and responds changing the status of the Bootloader MODE in Bootloader Erasing FLASH The system FLASH is erased Programming The FLASH is initialized with the new firmware and the process is verified in real time The update procedure is terminated with the re start of the Emulator CAEN S P A DT5800D User Manual 72
5. 3 6 2013 10 23 36 AM In alternative the time distribution can be loaded from csv file see Section CSV File Format and is considered symmetric with respect to the origin of time In practice the system modulates a constant rate distribution with the statistic time distribution loaded Consider the exponential time distribution shown in the picture Temporal Distribution 100 150 samples CAEN S P A DT5800D User Manual 48 CAEN D Electronic Instrumentation Suppose to fix the reference constant rate at 100 kcps Le consecutive pulses distant 10 us The resulting distribution of the occurrence times of pulses is exponential and the distances are between 10 us 255 8ns 8 us and R 10 us 255 8 ns 12 us The Scale factor allows to enlarge the distribution In the same scenario Scale 2 implies that the resulting distribution of the occurrence times of pulses is exponential and the distances are between IIe 10 us 255 2 8 ns 6 us and 10 us 255 2 8ns 14 us The Sequence command corresponds to the load of the sequence of temporal distances for the generation of an a priori defined sequence of pulses The picture shows a screenshot of a temporal distances sequence stored File Vertical Timebase Trigger Display Cursors Measure Math Analysis Utilities Help 100 ps divf Auto 1 450 V 630 00 mV 2 MS 2 GSIs iti LeCroy 3 6 2013 11 11 39 AM CAEN S P A DT5800D User Manual 49 CA
6. E A k t OFFSET X 0 otherwise CAEN S P A DT5800D User Manual 38 CAEN D Electronic Instrumentation a Shape Preset H 25000 20000 15000 Shaped Exponential Ss RS Double Exponential us OFFSET 2000 000 WIDTH LENGTH A 32767 000 L RISING FALLING en pr Ax E OFFSET lt t lt OFFSET WIDTH 0 otherwise CAEN S P A DT5800D User Manual 39 CAEN D Electronic Instrumentation al Shape Preset 30000 Exponential Shaped Exponential ae us 2000 000 4 LENGTH 409500 gt anan 32767 000 lt 200000 Gaussian Gauss_20000 1 A TTT _ t OFFSET o arre Ol o CAEN S P A DT5800D User Manual 40 CAEN D Electronic Instrumentation a Shape Preset 25000 20000 15000 Exponential a OFFSET z LENGTH 4095 000 nan 232767 000 Tau us 2 000 Gaussian _ an fie t gt OFFSET 0 otherwise CAEN S P A DT5800D User Manual 41 CAEN Di Electronic Instrumentation oi Shape Preset 30000 25000 Pulse 15000 10000 5000 A us OISE 100 000 SICH 1000 000 IM m 2276 7000 Tau us 1 000 Gaussian ate t gt OFFSET 0 otherwise CAEN S P A DT5800D User Manual 42 CAEN Di Electronic Instrumentation a Shape Preset H 30000 Exponential Shaped Exponential 4 us OFFSET 100 000 E LENGTH 1000 000 GIE 22767000 Tau 1 us P 000 Tau 2 us 2 000
7. Name DExp_300 Gaussian t OFFSET t OFFSET Axle u se h t gt OFFSET 0 otherwise CAEN S P A DT5800D User Manual 43 CAEN D Electronic Instrumentation Multi Shape Signal Shape Multi Shape Enable Multi Shape feature Shape A 100 0000 WG CET Kai 4 The instrument can be initialized to simultaneously generate signals with different shapes in order to test pulse shape discriminators Two different waveforms can be programmed with programmed probability of occurrence The option is enabled by checking the Enable Multi Shape feature box After setting the probability of occurrence for Shape A press the Shape A button which will light up red and click on the form to be assigned as Shape A Repeat the same sequence for Shape B Shape A and Shape B waveforms are displayed in the system monitor CAEN S P A DT5800D User Manual 44 CAEN Electronic Instrumentation Signal Shape Subset 1 Subset 2 500 samples In case of Multi Shape operation mode the resources for the pile up emulation are shared between the two shapes see Pile up Section CAEN S P A DT5800D User Manual 45 CAEN D Electronic Instrumentation Shape Interpolator Shape Interpolator M Rising Edge Fed CH Fed e gt Comer Point Since the system clock is equal to 125 MHz i e 8 ns of sampling period and the compliant signal shapes are at maxi
8. evolves either free running p or one step at a time CAEN S P A DT5800D User Manual 20 CAEN D Electronic Instrumentation In this latter mode by enabling the LESR control flag as in the picture above the LSFRs can be stopped db and then made switching for one clock cycle During the LSFRs freezing the output is still present and corresponds to the last generated pulse that is repeated iteratively In the meanwhile the LSFRs are paused the reset command amp can be used to reset the status of the LSFRs that returns to the seed value set initially After oo resetting the same former sequence is re generated either in free running MA or step by step mode Alternatively by enabling the Time Base Generator control flag the debug procedure stops JL the time base generators which operatively means that the generation of pulses is inhibited and can be activated to produce a pulse ata time at the output of the emulator If reset is asserted when the generation is stopped the LFSRs are reset and the sequence can be started back from the beginning equal to itself either in free running pJ or pulse by pulse mode The Multistep mode consists in responding to the command with the generation of an a priori fixed number of pulses 16 in the picture above After the packet of pulses is produced the instrument enters in stand by mode with the same possible evolution of the other operative conditions Spectrum Qu
9. instrument and the nearest object At the bottom the emulator feet up or down provide adequate clearance A CAUTION Do not block emulator vents Always keep the area beneath the emulator clear of paper and other items Cleaning Clean only the exterior of the instrument using a damp soft cloth Do not use harsh chemicals or abrasive elements Under no circumstances submerge the instrument or allow moisture to penetrate it Unplug the power before cleaning A CAUTION Do not attempt to clean internal parts Refer to qualified service personnel of CAEN CAEN S P A DT5800D User Manual 7 CAEN D Electronic Instrumentation Calibration The instrument is calibrated at the factory prior to being shipped The recommended calibration interval is five years Calibration can be performed by the end user through the included automatic calibration function which is initialized through a file available on nuclearinstruments eu and on the mass storage support delivered with the instrument Extended warranty calibration and upgrade plans are available for purchase Contact CAEN sales representative to purchase a service plan Power Use only the power supply shipped with this instrument and certified for the country of use All I O digital gates are LVCMOS compliant The dynamic range of the analog outputs is 4 4 V 50 Q output impedance and 8 8 V high impedance CAEN S P A DT5800D User Manual 8 CAEN D Electronic Instrume
10. periods 8 ns plus a multiple number of taps of 11 ps Statistical Settings Two options CH2 is a replica of CH1 also in terms of noise just shifted in time or CH2 has its own statistic of generation with the only correlation in the coincidence of the generation instant of the pulses The picture shows two identical pulses shifted File Vertical Timebase Trigger Display Cursors Measure Math Analysis Utilities Help Timebase 8 0 ng Trigger WALIS 500 mV div 20 0 ns div Auto 715 mV 700 00 mV 400 S ASJA e Positive LeCroy 3 6 2013 2 01 42 PM The option Only some pulses on Channel 1 and Channel 2 are correlated allows the generation of two signals A and B completely uncorrelated that only occasionally are correlated The correlated signals follow a statistical emission energy that does not depend on the temporal statistics of the two emission channels The generation of statistics related events is enabled by checking the enable statistic correlated events box CAEN S P A DT5800D User Manual 62 CAEN D Electronic Instrumentation CORRELATED EVENTS STATISTIC Energy Mode Single Line Time Distribution CURRENT Constant Rate Poisson distribution LFSR Settings Ampitude STARTUP 3C4F8827 7890 1600 Time STARTUP 13191496663229200 ast PEU Delay Distribution STARTUP 5C234 CAEN S P A DT5800D User Manual 63 CAEN D Electronic Instrumentation In
11. set of available noise corner frequencies Noise Corner Frequencies kHz The fields labeled magnitude define the maximum amplitude of the noises in levels and the field corner sets the corner frequency between the two noise contributions CAEN S P A DT5800D User Manual 52 CAEN D Electronic Instrumentation Interference Interference Enable artificial interference File intefe csv Time distribution Periodic Random avg frequency us Magnitude Costant Random As cvs file see Section CSV File Format an interference can be introduced into the emulation process and added to the signal periodically or randomly with an average frequency The interference amplitude can be scaled according to a constant level or to a random varying level The picture shows an interference from a switching power supply Interference 1000 1500 2000 2500 3000 3500 samples CAEN S P A DT5800D User Manual 53 CAEN D Electronic Instrumentation Baseline Drift Baseline Drift M Enable baseline drift Slow interpolation ratio CH None Manual Edemal If Enable baseline drift is selected a signal is summed up to the output of the emulator This signal can be loaded as csv file or designed internally by means of the specific tool Baseline Designer The system reserves 4096 points for the baseline signal which are key points for a process of linear interpolation The following pi
12. the clock period BETWEEN Ons NCLK CAEN S P A DT5800D User Manual 69 CAEN D Electronic Instrumentation Calibration Number of pulses in multistep mode 16 Control LFSR Time erator Spectrum Quantization CH A 14 bits spect CHE Mode First bin in the window Max in the window Slice first part of the spectrum Connector Router Input A Disabled Gate B SGateB Trigger B Run Stop Step Over Reset LESA Restart Memory Baseline Reset A 060 6 0 6 Gate B S Gate B Trigger Trigger E Run Stop Step Over Reset LFSR Restat Memory O ei Lei C ei C C ei Baseline Reset B Disabled Accepted Tigger Trigger ON OFF Machine Overloaded vllt We Analog Saturation Pulse width ns LG Digital Out B Disabled Accepted Tigger Trigger ON OFF Machine Ovedoaded Analog Saturation Pulse width ns The picture shows the screen shot of the interface of the Calibration tool CAEN S P A DT5800D User Manual 70 CAEN D Electronic Instrumentation Channel 1 This tool allow the fine Channe Em Kap EE Current Channel 30000 LES S amplitude of the instrument SUR 3770 4 Mow unconnect all device a 26126 from the output of the mV A instruments and connect a 10000 1256 5 multimeter between the T ground and the central eV 0 0 position of the output 10000 1255 2 connectors S Channel 20000 211 4 30000 3767 6 Current Ch
13. 5800D User Manual 16 CAEN D Electronic Instrumentation One Touch Interface After starting the software the panel One Touch Interface is available for quick handling of the instrument RATE kcps WO Repetitive Poisson No Pileup Upto 16 10 00 E Digital RC 10 00 AMPLITUDE dac LSB Single Line Spectrum 16 000 SHAPE Rise Time us Tau us KOE MITA NOISE LSB _o Y RATE kcps A r Repetitive Poisson No Pileup Upto 16 10 00 E Digital RC A AMPLITUDE dac LSB Single Line Spectrum 16 000 SHAPE Rise Time us 10 00 E NOISE LSB ER Tau us ARTE e E Always on top Through a series of virtual knobs the main parameters of signal generation of the two channels can be regulated Rate amplitude and exponential shape can be controlled The controllable noise is only white The number of piled up pulse is fixed at 16 events The panel can be switched off and activated anytime through the command in top left corner of the main display CAEN S P A DT5800D User Manual 17 CAEN D Electronic Instrumentation Setting Area The setting area of the main panel has five menus Main Settings Control of the main functions of the instrument CH1 Control of specific settings of Channel 1 CH2 Control of specific settings of Channel 2 Sequence Management of reproduction of recorded sequences Correlated events Defini
14. CAEN Electronic Instrumentation Tools for Discovery DT5800D Dual Channel Desktop Digital Detector Emulator with channel correlation Getting Started and Operating Manual September 2013 CAEN D Electronic Instrumentation CAEN S p A Via Vetraia 11 55049 Viareggio LU ITALY Tel 39 0584 388 398 Fax 39 0584 388 959 info caen it www caen it CAEN SpA 2013 Disclaimer No part of this manual may be reproduced in any form or by any means electronic mechanical recording or otherwise without the prior written permission of CAEN SpA The information contained herein has been carefully checked and is believed to be accurate however no responsibility is assumed for inaccuracies CAEN SpA reserves the right to modify its products specifications without giving any notice for up to date information please visit www caen it CAEN S P A DT5800D User Manual 2 CAEN D Electronic Instrumentation Table of Contents How This Manual Is Organized ss nsnnnnnnnns 5 CADE LAC e E A 5 System Recovery and Be e 5 EE 5 Satety IS EU COS scene ee esse eme 6 SA DA ONG A o o o PA 6 Pecado aiii 6 Operating ENVIFOAM eucariotas 7 et 7 AAA me 7 Al e EE P AA 8 ONE etree cn epee A ek teense cumcaceesmetets 8 BEER 9 TVG POE or rour Mar 9 The Back Of Your Emulator EE 10 Essential Core Emulator Functions nnnnes 11 EEN 12 ejes ets 0 A A A 12 Erorr ECC Ee DE 13 UT RS SOU D e e
15. E Eo OO e 14 ONE TOCA MP as 17 SELINA o a 18 Mi A e e eo e 19 Channel 1 Mode Channela Mod tanos 20 nn A E EA E 20 oc AAA ee ener em eee ere ee eee 21 Connector 8 E 22 CC PP 25 Genera EE 28 OO lee ed Ten ane er ee ener 29 e ET Ee E 36 DS AAA E E aeeacennesee eee 44 Se Joea iced ty 018 21 0 passa 46 di A 47 e esca 34 ced CO E o a 50 N OSE DA ON a aaaea EEEa Banai 52 DAS A 53 Baseline DE eee eee ee Te 54 EE 57 RS A OOO E E eee 58 CA 61 A A E 62 e P eer eer ae 62 CAC Operating EE 64 DISDIA ATC A a nets EE 65 AO O EE UU e 67 o PP ne Pe PP a 67 SPECE I OPA ne 67 CAEN S P A DT5800D User Manual 3 CAEN D Electronic Instrumentation Tine CS OO y AMP UP o ae de 68 PR PA A e A nn 68 un 68 Sequence in Energy Mode and in Time Distribution sens 69 CAD or 0 ae de ese eee eee 70 System Recovery and Update snmsmmmmmnmnennenmnnns 72 CAEN S P A DT5800D User Manual 4 CAEN D Electronic Instrumentation How This Manual Is Organized We cover your instrument s unique hardware and software features in the sections e Hardware e Essential Core Functions e User Interface Calibration The Calibration of the Emulator is described in order to be performed in total autonomy by the end user with the only support of a multimeter and of the internal fully automatic procedure which is initialized through a file available on nuclearinstruments eu and on the mass storage support delivered with the i
16. EN D Electronic Instrumentation Pile up Pile up a Madmum events in pile up SHAPE A Dead time Paralizable Non Parallizable o The phenomenon of the pile up can be emulated by varying the field of label x from a minimum of 0 absence of pileup to a maximum of 15 overlapping events If the critical condition of saturation occurs due to excessive pile up of pulses the time base generator continues calculating new occurrence times but with no actual generation of the correspondent pulses A If this is the case attention should be paid that the reset and restart of the LFSRs even with the same seed does not correspond to the reproduction of the same pulse sequence In case of Multi Shape operation mode the resources for the pile up emulation are shared between the two shapes which means that only 8 events with the same shape may be piled up The maximum number of piled up events for each shape can be set DC DC 5 0 5 0 3 813 3 823 2 813 2 823 1 813 1 823 0 813 0 823 0 187 0 177 24 81 19 81 14 81 9 809 4 09 0 191 5 191 10 19 15 19 20 19 25 19 The Dead time parameter fixes the minimum distance between two adjacent pulses Paralyzable and Non Paralyzable flags active the correspondent operation modes CAEN S P A DT5800D User Manual 50 CAEN D Electronic Instrumentation In the paralyzable system if a new event is fired during the dead time interval the counter of the generation t
17. Generated event counter resettable through the button by side The virtual LED turns to red color when the programmed statistic of generation is no more feasible due to pile up limit or to saturation of the output analog stage in case of analog exponential On the left side of the display are all the settings that initialize and control each channel of the instrument Setting Area On the right side the actual CAEN S P A DT5800D User Manual 15 CAEN D Electronic Instrumentation configuration of the Emulator is shown by means of graphs for each channel Display Area a Detector Emulator DDE 2CHc Lk ca Main Settings CH1 CH2 Sequence Correlated Events Settings CH1 Settings CH2 Realtime CH1 Realtime CH2 Delay OUTPUT ENABLE General Settings M Channel Enable M Anti alias filter BW Output Filter RW invert Dotai a CE gt M Pulsed Reset Detector Minimum number of events Signal Shape Exp_50 gt 231307 08 im Single Line 13761 1 3761 V S Subset 1 Subset 2 1 0 0 9 0 8 0 7 0 6 0 5 0 4 gei Minimum Value ON oo LSB 0 3 0 2 13761 NE 1 3761 V soo R Scale x1 e Load File 20 10000 20000 30000 channels channels Interference 445 0 Constant Rate 500 1000 2000 4000 100 WARNING Firmware is outdated it is raccomanded to upgrade as soon as possible Click upgrade to open the firmware upgra CAEN S P A DT
18. alculates the sample in correspondence to which the filtered shape at full scale gets off below the LSB of the DAC 4 On this basis the system calculates the factor of subsampling 500 points are reserved to the rising edge the remaining 3596 are for the tail 5 The subsampled shape is programmed and the factors for the linear interpolation of rising and falling edges are calculated The output signal of the emulator can be shaped according to a specific reference shape The shape is arbitrary and of maximum 4096 samples A set of available shapes can be created and the actual shape of the output signal chosen from time to time Signal Shape 1000 1200 1400 1600 1800 2000 samples CAEN S P A DT5800D User Manual 37 CAEN D Electronic Instrumentation The shapes can be loaded Load File button as csv files result of an experimental measurement or a MatlabO synthesis or can be generated internally to the instrument The tool Shape Preset for the internal generation is run by the Preset button The generated shape can be edited by the procedure Edit The button Remove deletes the selected shape A set of signal shapes is built in the Emulator The characteristic parameters of each shape can be adjusted by the operator a Shape Preset e 30000 Exponential Shaped Exponential IN ge 15 us OFFSET 2048 000 LENGTH 4095 000 lt Ian 32767000 Double Exponential Gaussian
19. annel 30000 mV eV Current Parameters CH1 Ch Cor op 1 270625 1 270625 offset EEI 45 142 The calibration consists in balancing the outputs of CH1 and CH2 to be identical for the same signal For this purpose a configurable gain is available Moreover the correspondence of channels voltage can be assessed The calibration is carried out through a multimeter with reading scale down to uV Operatively the Emulator produces an output on CH1 and CH2 and the operator has to insert the result of the measurement of this output in the boxes labeled mV Automatically the new correction parameters of gain and offset are calculated and permanently stored into the instrument The output must be terminated at 50 during calibration procedure CAEN S P A DT5800D User Manual 71 CAEN D Electronic Instrumentation System Recovery and Update The system recovery and update procedure is fully automatic and no needs human attendance Even if the Emulator firmware is corrupted the instruments automatically enters the procedure Firmware Upgrade Even if the procedure should be aborted during execution there would be no consequences to the instrument Hardware OPT Firmware CY Bootloader MODE New Firmware File Load and Program Operatively the configuration consists of three steps Bootloader mode entrance After running the procedure through Load and Program the instrument is busy for 20
20. antization It is well known that the re quantization of a spectrum over a different number of bins introduces distortions in its shape due ultimately to an aliasing effect The spectrum emulated should have resolution in bins equal to the number of bins of the target device that reconstructs it from the emulated pulses Spectrum Quantization CHA 14 bits spectrum with 16384 bins e CHB 14 bits spectrum with 16384 bins e Mode First bin in the window Max in the window Slice first part of the spectrum As a rule the reference spectrum in the emulator has resolution above the request one In order to get the matching of bin resolution a decimation process is implemented in the instrument with three possible processing procedures The spectrum is divided in windows of equal amplitude automatically calculated on the basis of the target resolution and for each window the first bin or the bin CAEN S P A DT5800D User Manual 21 CAEN D Electronic Instrumentation with highest number of counts is taken as result of the decimation Third way of decimation is consider only the first part of the spectrum over a number of bins congruent with the target resolution Connector Router The emulator front end consists of six configurable I O ports analog and digital The picture shows the configuration sheet for I O digital settings A CAUTION All I O gates are LVCMOS compliant The dynamic range of the analog outputs is 4 4 V
21. ctrum with resolution of 14 bits CAEN S P A DT5800D User Manual 32 CAEN D Electronic Instrumentation The picture shows a screen shot of the output of the emulator initialized as in the example above with the spectrum of the isotope Co A LE AA A A A b 0 er Li TECH VADI 1025 00 AM Through the Isotopes DATABASE menu it is possible to select from the periodic table of elements one of the isotopes of each atom Among all correspondent X and Gamma spectral lines a set is created and is added in the spectrum under synthesis with the specification of the relative activity The operation can be repeated aggregating an arbitrary number of elements Finally the energy calibration is performed by setting the energy in keV unit corresponding to 0 V the energy corresponding to the full scale of 2 V and the desired resolution in eV unit The resolution equal to 0 eV corresponds to mono energetic lines ad radion_composer gt So EC E SE gl 5 8 29 Ss JEN IEE saze dl Ds 21 Sc 44 956 39 Y 88 906 71 Lu 2N d pa 8 g saje geje lt s 9 de S os ae S SE of nta 3 R S 8 3 LE S SEI E e GK S 55 lg gais 3 T SE 3 E 3 E PAE S Ss SC SR EF eg ke BE o ej CAEN S P A DT5800D User Manual 33 CAEN D Electronic Instrumentation 1S Iron 55 70 ms 3 a Gamma Ray Out
22. cture shows a screen shot of the interface of the Baseline Designer CAEN S P A DT5800D User Manual 54 CAEN D Electronic Instrumentation 30000 25000 20000 15000 10000 5000 iz 10 15 20 25 30 LE di us llele ll The columns Sample and Value contain the positions and the correspondent values of the key points The column Fast indicates the modality of interpolation If the field Fast is set to 0 a slow interpolation is performed suited to emulate slowly variable signals up to drifts of several seconds If the field Fast is set to 1 a fast interpolation is performed suited to emulate fast variable signals correspondent to the presence of circuits of reset or quenching The precision of both interpolation procedures can be regulated by means of the slow and fast interpolation sliders The reset of the baseline signal is accomplished automatically at the end of the sequence representing the signal manually by means of the RESET button externally by means of a digital signal for instance from a quenching circuit connected to one of the digital inputs of the Emulator The picture shows the output of the emulator in presence of a linearly varying superposed signal CAEN S P A DT5800D User Manual 55 CAEN D Electronic Instrumentation File Vertical Timebase Trigger Display Cursors Measure Math Analysis Utilities Hel
23. cycles multiplied by the Scale Factor see the Section Time Distribution tin 8ns BIN Scale Interference The values are organized in row format Values are separated by commas Value 1 Value 2 Value 3 Value 4 Value 5 Value 6 The values represent the amplitude of the interference samples and are quantized to 16 bits from 32768 to 32767 integer The maximum number of samples of the waveform is 4096 but a lower size can be used Signal Generator The values are organized in row format Values are separated by commas Value 1 Value 2 Value 43 Value 4 Value 5 Value 6 The values represent the amplitude of the interference samples and are quantized to 16 bits from 32768 to 32767 integer The maximum number of samples of the waveform is 106 but a lower size can be used CAEN S P A DT5800D User Manual 68 CAEN D Electronic Instrumentation Sequence in Energy Mode and in Time Distribution You have to generate two files one of amplitudes of events and one of temporal distances between events For each file the values are organized in row format Values are separated by commas Value 1 Value 2 Value 3 Value 4 Value 5 Value 6 The maximum length of the list is 500 kword The values of the file of amplitudes modulate the amplitudes of the signal shape The values of the file of temporal distances represent the temporal distances between events as multiples of
24. disconnect properly Do not connect disconnect leads while they are connected to a current voltage source Observe all terminal ratings Do not apply a voltage to any input that exceeds the maximum rating of that input Use only within operational environment listed Do not use in wet or explosive atmospheres Use indoors only Keep product surfaces clean and dry Do not block the cooling vents Leave a minimum six inch 15 cm gap between the instrument and the nearest object Keep the underside and the upper side clear of papers and other objects Do not remove the covers or inside parts Refer all maintenance to qualified service personnel of CAEN CAEN S P A DT5800D User Manual 6 CAEN D Electronic Instrumentation Do not operate with suspected failures Do not use the product if any part is damaged In case of incorrect behaviors cease operation immediately and sequester the instrument from inadvertent use Operating Environment Temperature 5 to 40 C Humidity Maximum relative humidity 80 for temperatures up to 31 C decreasing linearly to 50 relative humidity at 40 C or at the upper operational temperature limit Altitude Up to 10 000 ft 3 048 m at or below 25 C Cooling The instrument relies on forced air cooling with internal fans and vents Take care to avoid restricting the airflow to any part of the instrument Around the sides and rear leave a minimum of 15 cm 6 inches between the
25. distribution Periodic Random ts Random a Dun avg frequency Magnitude Costant Baseline Drift M Enable baseline drift Slow interpolation ratio X FACTOR None Manual RESET LFSR Settings Amplitude RANDAL STARTUP 15D84ECF2BB09E0L RAND S intep R STARTUP 4DBBD5579B77ACO RAND CAEN S P A DT5800D User Manual 26 CAEN D Electronic Instrumentation Main Settings CH 1 Slow interpolation ratio X FACTOR None Manual LFSR Settings STARTUP m wt he STARTUP Tom STARTUP me STARTUP EDF 726EBC00 Se v STARTUP TR STARTUP E CAEN S P A DT5800D User Manual 27 CAEN D Electronic Instrumentation General settings Main Settings CHT OUTPUT ENABLE General Settings M Channel Enable DB Anti alias filter M Output Filter Digital Gain Digital Offset M Pulsed Reset Detector Minimum number of events Minimum Value A Pi LSB Maximum Value di 0 Ss LSB Channel Enable If selected the output is activated Otherwise the output is fixed to zero with low impedance Equivalent to the main button OUTPUT ENABLE Anti alias filter Insert a RC filter on the output of the DAC to improve signal shape Output filter Insert an LC 7 order filter on the output to improve noise suppression Rise time of the output signal is 16ns Invert If selected the polarity of the output is changed Digital Gain Digital amplificatio
26. e Analog Saturation a Asi Inc Pulse width ns mn Digital Out B O Disabled O Accepted Tmoger Dies ON OFF Machine Overloaded Analog Saturation Pulse width 16 a CAEN S P A DT5800D User Manual 23 CAEN D Electronic Instrumentation Digital Out 1 Digital Out 2 Outputs are pulses with duration defined in the field Pulse width ns of the Connector Router mask see picture above The electrical standard is LVCMOS Disable disabling of the gate Trigger the direct output of the time base generator independently on the finalization of generating a correspondent pulse Accepted Trigger the direct output of the time base generator that corresponds to the actual generation of the correspondent pulse This means one Accepted Trigger pulse for every analog pulse at the output ON OFF state of activation of the channel Machine Overloaded no more availability of generation engines which means excess of pile up The signal is asserted high until the condition persists Analog Saturation saturation of the dynamic range of the analog output below screenshot of Analog Saturation digital signal green correspondent to the saturation of the analog output red File Vertical Timebase Trigger Display Cursors Measure Math Analysis Utilities Help e D TRE Nr T nd 1 TV lee pd A y ae 500 mV div 800 00 mV LeCroy 3 6 2013 11 17 27 AM CAEN S P A DT5800D User Manua
27. e predictable sequence generation with step by step pulse generation e Windows software for full system management e USB 2 0 connection e DLL for automation of emulation process e Replay on analog channels of recorded or synthetized signals e Generation of shifted copy of a signal with 11 ps step i e correlated event emulation e Load download in CSV format of parameters shapes spectra CAEN S P A DT5800D User Manual 11 CAEN D Electronic Instrumentation Running the Software Installation Do not connect the Emulator before you install the software CAEN DOCK On the PC where you decide to host the system login as Administrator and run NuclearInstrumentsDock_Setup If driver installation fails you can install them manually from the Drivers folder on the mass storage support delivered 2 Nuclear Instruments DOCK InstallShield Wizard kd Welcome to the InstallShield Wizard for The InstallShield R Wizard will install Nudear Instruments on your computer To continue dick Next WARNING This program is protected by copyright law and international treaties CAEN S P A DT5800D User Manual 12 CAEN D Electronic Instrumentation Program Execution When the program is opened lists all available Emulators connected to the system bus with both USB and Ethernet a 3 dwal ed K fm mem CAEN n Electronic Instrumentation Available hardware Ia LAN SOFTWAREEMULATOR Portable Emulator
28. er Gain CAEN S P A DT5800D User Manual 58 CAEN D Electronic Instrumentation Function Generator The Emulator can be used also as programmable generator of the following items Sine Square wave Ramp Saw tooth Impulse Sinc DC level Noise Sine Amplitude 4V a 4V on 1 MQ Frequency 1Hz 10MHz Offset 4V a 4V on 1MQ The implemented Autophase feature automatically calculates the initial phase in order to minimize the harmonic distortion Square wave Amplitude 4V a 4V on 1 MQ Frequency 1Hz 10MHz Offset 4V a 4V on 1MQ Ramp Amplitude 4V a 4V on 1 MQ Frequency 1Hz 10MHz Offset 4V a 4V on 1MQ The symmetry of the shape can be adjusted by setting the relative percentage of rising and falling edges Saw tooth Amplitude 4V a 4V on 1 MQ Frequency 1Hz 10MHz Offset 4V a 4V on 1MO Impulse Amplitude 4V a 4V on 1 MQ Frequency 1Hz 10MHz Offset 4V a 4V on 1MQ The steepness of the edges referred to the period and the duty cycle are adjustable Sinc Amplitude 4V a 4V on 1 MQ Frequency 1Hz 10MHz Offset 4V a 4V on 1MQ CAEN S P A DT5800D User Manual 59 CAEN D Electronic Instrumentation The number of zero crossings of the sine cardinal into a period can be programmed DC level Offset 4V a 4V on 1MO Noise Amplitude 4V a 4V on 1 MQ Frequency 1Hz 10MHz The generated noise has white spectrum CAEN S P A DT5800D Use
29. er Trigger ON OFF Machine Overloaded Analog Saturation Digital Out B Pulse width ns CAEN S P A DT5800D User Manual 19 CAEN D Electronic Instrumentation Channel 1 Mode Channel 2 Mode Both Channel 1 CH 1 and Channel 2 CH 2 can independently operate as Emulator Pulser or Sequence Player Channel 1 Mode Emulator Analog Output Sequence Player Channel 2 Mode Emulator Analog Output e Sequence Player In the Emulator Pulser mode the instrument generates a statistic or deterministic sequence of pulses In the Sequence Player mode the instrument loads from the outside the sequence of pulses that reproduces Run Debug The operative conditions are free running default mode at start up and step by step debug Run Debug Channel BOTH CHI CH Number of pulses in multistep mode Control LFSR Time Base Generator The free running of emulation Q is based on the generation of pseudo random numbers by means of Linear Feedback Shift Registers LFSR The randomness of the seed value starting the generation process ensures the emulation of different sequences even if in agreement with the set statistical characteristics From the other side fixing the seed value in CH1 and CH2 menus allows to generate always the same identical sequence This is at the basis of the step by step debug After setting a value of the seed the generation process starts and
30. ime is reset and re initialized with a new value In the non paralyzable system an event generated in the dead time is simply disposed The pictures show screenshots of the output signal in case of different dead time specifications File Vertical Timebase Trigger Display Cursors Measure Math Analysis Utilities Help 200 mV divj No data 605 00 mV available 100 kS LeCroy 3 6 2013 10 26 32 AM File Vertical Timebase Trigger Display Cursors Measure Math Analysis Utilities Help pal F1 Tbase 200 og Trigge 200 mV divj No data 00 Stop 470 mV 605 00 mV available Edge Positive LeCroy 3 6 2013 10 27 13 AM CAEN S P A DT5800D User Manual 51 CAEN D Electronic Instrumentation Noise Emulation Noise Emulation M Random Numbers magnitude 0 S LSB EM 14 Noise magnitude 0 e LSB last filter M White Noise sigma LSB M Random Walk magnitude LSB M Shot magnitude At present random numbers and flicker Le 1 f noise white noise random walk and shot noise can be emulated All noise contributions are defined in classic literature The white noise is actually a pseudo white noise because it is digitally generated and limited in band by the DACs whose sampling frequency is set to 125 MHz The white noise is generated by a LFSR at 64 bits Also the flicker noise is generated starting from a custom LFSR and shaped by an array of filters which correspond to the following
31. itude Sequence AseqB csv 20 Steps CAEN S P A DT5800D User Manual 35 CAEN D Electronic Instrumentation Signal Shape Signal Shape Ato Fast Limited Pileup Analog RC Rise time us Fall time us Exponential 0 000 S 0020 Custum Load File The emulator is able to generate both exponential signals and signals of arbitrary shape The exponential signal is generated through the cascade of two IIR filters The first one sets the time constant of the exponential shape and the second one adjusts the rise time For the analogy with an analog pulser this operation mode is referred as Analog RC The maximum number of piled up events is limited only by the saturation of the analog output stage and the Poisson statistical distribution of the events is guaranteed at any rate The generation of signals of arbitrary shape is realized by means of 16 memories of 4096 points each Signals longer than 4096 points can be obtained with a linear interpolator available at the output of each memory If piled up events exceed the maximum number of 16 the statistical distribution of the output events is not more Poissonian In this case the virtual LED on the report line fixed at the bottom of the display turns to red color indicating that the programmed statistic of generation is no more feasible By default the emulator generates an exponential signal with rise time and fall time adjustable by the user The b
32. l 24 CAEN CH 1 CH2 Mein Settings CH OUTPUT ENABLE General Settings M Channel Enable M Anti alias filter M Output Filter W invert Digital Gain Digital Offset M Pulsed Reset Detector Minimum number of events Minimum Value Maximum Value Energy Mode Single Line Remove a Electronic Instrumentation Signal Shape Auto Analog RC Rise time us 0 000 Fall time us Exponential Custum Remove Coca Multi Shape al Shape A SEITEN 100 0000 Bal 4 Shape Interpolator Rising Edge Fixed M Falling Edge Fixed ms Comer Point Time Distribution CURRENT CAEN S P A DT5800D User Manual 25 CAEN D Electronic Instrumentation Main Settings CH 1 Main Settings CH 1 Time Distribution CURRENT 10 kcps Constant Rate 10 0000 Bes PULTE CLUE TEAL RET NNNMNNN SECT AT TAT AE ATER TREE eee eae IRTE RIN IR ISIN TE AT AT TE EE TRE CLERC eee ate Poisson distribution or es Pile up Madmum events in pile up SHAPE A Maximum events in pile up SHAPE B Dead time Paralizable Non Parallizable Noise Emulation M Random Numbers magnitude LSB M 14 Noise magnitude E LSB last filter MM White Noise sigma M Random Walk magnitude M Shot magnitude probability Interference Ml Enable artificial interference se ns Interference Ml Enable artificial interference sn Il Ml Time
33. l box Time Distribution select the flag File and indicate a time distribution of the pulses i e the probability of occurrence of the successive pulse after a certain time For instance loading the exponential time distribution implies that is maximum the probability of occurrence of next pulse after one clock period i e 8 ns Emulator of Radiation Sources Select the flag Spectrum Emulation and load a reference energy spectrum and a time distribution in the panel box Time Distribution CAEN S P A DT5800D User Manual 29 CAEN D Electronic Instrumentation 13761 GM 1 3761 suen Load File D el The reference spectrum can be loaded Load File button as a csv file see Section CSV File Format ANSI N4242 result of an experimental measurement or a MatlabO synthesis Spectrum cobalto 2000 4000 6000 8000 10000 12000 14000 16000 channels The Spectrum Import Tool allows the upload of the spectrum in csv or N4242 format CAEN S P A DT5800D User Manual 30 CAEN D Electronic Instrumentation Input Spectrum Imported Spectrum 500 0 A U U 0 4000 6000 5000 10000 channels channels Input Spectrum Output Spectrum Spectrum Available Scale Factor lterpolate Number of channels Adj peak oe In presence of multiple N4242 spectra the command window Spectrum Available allows selecting the desired source The tool allows to adjust the dynamic of the input spectrum to the
34. lock Analog RC operates at a frequency equal to half the system clock and is therefore not capable of generating correctly signals with time constant and or rise time shorter than 16 ns The system is initialized in the Auto operation mode and automatically selects between Fast and Analog RC mode depending on the values of time constant and rise time programmed by the user The Fast mode uses 16 memories to generate the exponential signal After setting the time constants of rise and fall of the signal the system automatically CAEN S P A DT5800D User Manual 36 CAEN D Electronic Instrumentation implements the shape and activates the interpolators if necessary choosing the most suitable interpolation factor This signal is referred analog exponential and is different from the fast exponential among the preset shapes After setting the time constants of rise time trise and fall time tT the system automatically implements the shape and activates the interpolators if necessary choosing the most suitable interpolation factor This feature is not available with the Multishape operating mode The generation flow of the exponential shape is the cascade of the following steps 1 An ideal exponential shape is generated according to the definition SE Et gt OFFSET 0 otherwise 2 The shape pass through a first order IIR low pass filter with bandwidth equal to EE Crise 3 The system c
35. mum 4096 samples long the maximum time duration of a signal is 33 us In order to get signals up to 26 ms of length the real signal can be ideally divided in two parts rising and falling each on linearly interpolated with different factors The ideal separation between rising and falling edge of the real signal can be automatically detected Auto Detect or fixed by the operator Corner Point CAEN S P A DT5800D User Manual 46 CAEN D Electronic Instrumentation Time Distribution Time Distribution CURRENT 10 Constant Rate 1 0 0000 o E Poisson distribution The time generation of the pulses can be at constant rate from 10 cps to 5 Mcps The range of variability of the occurrence times of consecutive pulse is between 255 and 255 clock periods 8 ns The Scale factor allows to lengthen the maximum interval between adjacent pulses A Poisson distribution can be directly selected by checking the Poisson distribution box and selecting the related average rate The plots show screenshots of the output in case of constant and variable rate PANE LC No data 605 00 mV available CAEN S P A DT5800D User Manual 47 CAEN D Electronic Instrumentation Display Cursors Measure Math Analysis Utilities Help File Vertical Timebase Trigger HE bi 200 mV div amp No data 2 00 us diviStop 470 mV 605 00 mV available 40 kS 2 GS sfEdge Positive LeCroy
36. n of the output signal between 0 and 2 Digital Offset Reference offset expressed as a fraction of 216 levels of quantization i e between 2 2 V and 2 2 V that is applied before the gain stage Pulsed Reset Detector If selected the output of a pulsed reset detector is emulated The output is a staircase whose dynamic is limited by the fields Minimum Value minimum 32767 levels corresponding to 2 2 V and Maximum Value maximum 32768 levels corresponding to 2 2 V It is possible to scale the output signal setting the Minimum number of events that at full amplitude saturate the dynamic of the staircase CAEN S P A DT5800D User Manual 28 CAEN D Electronic Instrumentation Energy Mode Energy Mode O Single Line 13761 GM E Load File Remove The emulation modes are e Pulser Le generation of pulses with amplitude and time distribution fixed e RTG Random Tail Generator Le generation of pulses with fixed amplitude and pseudo random statistical time distribution e Emulator of Radiation Sources i e generation of pulses statistically distributed whose spectrum corresponds to a given starting spectrum Pulser Select the flag Single Line and adjust the slider position to regulate the amplitude of the pulses at the output In the panel box Time Distribution set the constant value of the rate by means of the slider from 10 2 cps to 5 Mcps RTG Random Tail Generator Select the flag Single Line In the pane
37. nstrument A guideline is provided System Recovery and Update No problem if a failure occurs in the firmware of the system or if an update is requested The system recovery and update procedure is fully automatic and no needs human attendance Reference The Reference section is set aside and covers items like Certifications how to contact CAEN for Support and to always maintains the most current specification information The website should always be checked for updates CAEN S P A DT5800D User Manual 5 CAEN D Electronic Instrumentation Safety Instructions This section contains instructions that must be observed to keep the instrument operating in a correct and safe condition You are required to follow generally accepted safety procedures in addition to the precautions specified in this section The overall safety of any system incorporating this instrument is the responsibility of the assembler of the system Symbols This symbol appears in the instrument s documentation to alert you to important safety considerations A CAUTION of potential damage to instrument or WARNING of potential for bodily injury or system malfunctions Attend to the accompanying information to protect against personal injury or damage Do not proceed until conditions are fully understood and met Precautions Use proper power supply Use only the power supply shipped with this instrument and certified for the country of use Connect and
38. ntation Hardware The Front of Your Emulator Numbered labels on the image correspond with descriptions on the following table n CAEN DDE 2CHc 1 Digital Detector Emulatar ANALOG DIGITAL DIGITAL DIGITAL DIGITAL ANALOG J IN OUT OUT IN OUT Y vu Lu de y MA El q et AN br a D ES DE D OY DOY AI BEER M EN EN EN HN Y L Number Description Blue LED Analog output CH1 status Active low intensity normal operation Active high intensity saturation 6 Digital input CH2 o Of Blue LED Analog output CH2 status Active low intensity normal operation Active high intensity saturation A CAUTION All I O gates are LVCMOS compliant The dynamic range of the analog outputs is 4 4 V 50 2 output impedance and 8 8 V high impedance CAEN S P A DT5800D User Manual 9 CAEN D Electronic Instrumentation The Back of Your Emulator Numbered labels on the image correspond with descriptions on the following table Number Description 1 Power Supply Connector 12 V central terminal positive USB Interface Connector CAEN S P A DT5800D User Manual 10 CAEN D Electronic Instrumentation Essential Core Emulator Functions e Emulator Pulser Function Generator operation mode e Energy spectrum emulation e Time distribution of events emulation e Pile up emulation e Noise and periodic interference emulation e Continuous and pulsed reset emulation e Baseline drift e Debug mod
39. on in case of signal plot CAEN S P A DT5800D User Manual 65 CAEN Electronic Instrumentation Signal Shape 1000 1200 1400 1600 1800 2000 samples Signal Shape CAEN S P A DT5800D User Manual 66 CAEN D Electronic Instrumentation CSV File Format Shape The values are organized in column format Each value begins a new paragraph Value 1 Value 2 Value 3 Value 4 Value 5 Value 6 The values represent the amplitude of the shape and are quantized to 16 bits from 32768 to 32767 integer The maximum number of samples of the waveform is 4096 but a lower size can be used Spectrum The values are organized in column format Each value begins a new paragraph Value 1 Value 2 Value 3 Value 4 Value 5 Value 6 The values represent the probability and are quantized to 16 bits from 0 to 65535 The number of bins is equal to 16384 14 bits If a lower number of bins is inserted the remaining are automatically set to zero CAEN S P A DT5800D User Manual 67 CAEN D Electronic Instrumentation Time distribution The values are organized in row format Values are separated by commas Value 1 Value 2 Value 3 Value 4 Value 5 Value 6 The values express the probability that an event occurs at a certain distance in time from the previous one They are quantized to 8 bits from 0 to 255 integer The number of bins must be 256 Each bin represents the distance in clock
40. p 500 mV div 3 6 2013 11 32 26 AM CAEN S P A DT5800D User Manual 56 CAEN D Electronic Instrumentation LSFR Settings LFSR Settings Amplitude STARTUP Ita O i Tem M STARTUP 5 Inter F STARTUP Time STARTUP STARTUP STARTUP All the LFSRs of each channel can be initialized in terms of the values of the Starting seeds The seeds can be forced for each LSFR by the operator or can be automatically and randomly set by an internal procedure global or local Each LFSR can be stopped resetted and activated independently CAEN S P A DT5800D User Manual 57 CAEN D Electronic Instrumentation Sequence Arbitrary Waveform Generator Signal Generator CH 1 Disabled Clock per step clk cycles Srs Gain 100 Function Generator EN Bas Pulse Amplitude V Offset V Frequency Hz Phase Simmetry 75 EDGE Rising 4 Falling Arbitrary Waveform Generator The Emulator can be used as a traditional waveform generator reproducing at the output signals loaded as csv files in a memory of 1 Mpoints corresponding to the length of 8 ms for each channel In order to reproduce longer signals the physical samples of the loaded waveform can be used as key points of an interpolation process The interpolation factor can be fixed in the field Clock per sten up to 223 The amplitude of the generated signal can be controlled by the paramet
41. put Complex Spectrum Energy 1 Edit 1 Source Energy L EE j Q 4 Q0 125 95 1 28E 7 2 1 28E 07 0 037 10 Lef Iron 55 X 6 49 98 100 Eme 0 028 7 0 028 Iron 55 X 6 49 1 01 100 A 025 6 10 25 Iron 55 X 5 899 16 9 305 ms 5 7 0 00226 0 002 Iron 55 X 5 888 85 100 0 025 6 0 025 8 275 h 8 i 0 011 3 0 011 0 19 5 0 19 0 017 5 0 017 6 9E 06 4 6 9E 06 854 8 5 45 956 8 51m2 2 58 m 4 stable The Sequence option allows to load the amplitudes of an a priori defined sequence of pulses The same option is in the section Time Distribution and allows the loading of the correspondent temporal distances between the pulses Energy Mode Single Line Spectrum Emulation Sequence AseqB csv In this way it is possible to emulate repetitively the stored sequence made up to 500 kpulses Also a partially defined sequence can be stored The following combinations are available e Load sequence of amplitudes but time distribution at constant or Statistical rate e Load sequence of temporal distances but amplitudes constant or Statistically generated as above described CAEN S P A DT5800D User Manual 34 CAEN D Electronic Instrumentation All features of the emulation process noise signal shape are active except the generation of amplitudes from a spectrum The picture shows a screenshot of stored amplitude sequence Ampl
42. r Manual 60 CAEN Electronic Instrumentation Correlated Events Sequence Conelated Everts Main Settings Sequence Correlated Events Time Distribution Estimated Delay CURRENT 10 000 kcps Constant Rate 10 0000 kcps ZERO Timing Settings Disabled Poisson distribution T Fred Delay H ck cycles 8ns D LG taps 11ps Sweep Speed step Amplitude STARTUP 3C4E862778901600 Statistical Settings Time Channel 2 follows exacity channel 1 STARTUP Channel 2 has its own statistic Only some pulses on Channel 2 and Channel 1 are comelated CORRELATED EVENTS STATISTIC TEMPERATURE CONTROL Climatic operation condition Disabled Energy Mode Single Line 116000 ch Erk SE ag M d 1 pa 7 Li yu MN Set a temperature considering the dew point WARING Water in the device can cause severe damages please use this option only in controlled atmosphere Set Point C Spectrum Emulation Scale x1 II Ambient Temperature 33 14 C Delay Line Temperature 39 C Peltier cell DIC 100 Delay Line Voltage W ov CURRENT 10 000 kcps CAEN S P A DT5800D User Manual 61 CAEN D Electronic Instrumentation Timing Settings Two pulses identical or generating according to different statistics by at the same time can be separated by a programmable delay from 0 to 2 ms with resolution of 11 ps The delay can be fixed in terms of number of fundamental
43. resolution of 16384 bins of the instrument Both a scaling and an offset regulation are available By checking the Interpolate button the scaling is performed by means of a linear interpolation otherwise each new bin is created on basis of the nearest value of the bin on the left The function of Adj Peak sets the highest peak of the input spectrum at the value 65535 The spectrum can be generated internally to the Emulator The tool for the internal generation is run by the Preset button The internally generated spectrum can be edited by the procedure Edit The button Remove resets the actual reference spectrum The picture shows the screen shot of the interface of the Spectrum Editor tool CAEN S P A DT5800D User Manual 31 CAEN D Electronic Instrumentation 5000 10000 12000 channels rs Position Peak type The tool allows to design a spectrum of lines Rectangular or Gaussian widening can be introduced for each line that is centered in the bin Channel and has height equal to the correspondent value in Counts An arbitrary number of lines can be introduced and deleted 3 The synthetized spectrum can be saved as spectrum file The spectrum is represented on a scale with maximum resolution of 14 bits while the resolution of the Emulator is 16 bits A scale factor is present to adjust the spectrum resolution to the instrument range e g Scale x2 for spe
44. this operation mode from the emulation point of view the emission can be considered as a third channel completely independent from physical Channel 1 and Channel 2 which injects its output simultaneously in them It is possible to simulate pile up among event from the Channel 1 and Channel 2 and the correlated signals but also emulate pile up among correlated signals DC 5 0 2 823 0 813 0 187 24 81 19 81 14 81 9 809 4 809 0 191 5 191 10 19 15 19 20 19 Climatic Operating Condition In order to guarantee the stability of the delay a sophisticated compensation of temperature and humidity optional conditions is implemented in the Emulator CAEN S P A DT5800D User Manual 64 CAEN D Electronic Instrumentation Display Area Settings CH1 Settings CH2 Realtime CH1 Realtime CH2 Realtime Delay Spectrum 500 channels Temporal Distribution Risinge Edge Interpolator The Display Area gives in real time to the operator a complete graphical overview of the operating status of the Emulator The consultation of information in this area is straightforward Where possible the scales of the graphs can be swapped between digital and physical units by means of the command In particular in case of the spectrum Channels are converted in Voltage In case of the signal on the x axis Samples are converted in Time and on the y axis Levels are converted in Voltage The picture shows the possible axes quotati
45. tion of delay properties in the generation of correlated events CAEN S P A DT5800D User Manual 18 CAEN D Electronic Instrumentation Main Settings Channel 1 Mode Emulator Analog Output e Sequence Player Channel 2 Mode Emulator Analog Output y Sequence Player Run Debug BOTH Bech CH2 2 0 a e Number of pulses in multistep mode KE LFSR Channel kent LS Control Time Base Generator Spectrum Quantization CH 1 14 bits spectrum with 16384 bins CH 2 14 bits spectrum with 16384 bins e Mode O First bin in the window Max in the window Slice first part of the spectrum Connector Router Disabled Gate 1 Gate 2 S Gate 2 Trigger 2 Input A S Gate 1 Trigger 1 Run Stop Step Over Reset LFSR Restart Memory A A A A O Baseline Reset 1 Mode O First bin in the window Max in the window Slice first part of the spectrum Connector Router Disabled Gate 1 Gate 2 S Gate 1 S Gate 2 Troger 2 Input A Trigger 1 Run Stop Step Over Reset LFSR Restart Memory Baseline Reset 1 Disabled Gate 1 Gate 2 S Gate 1 S Gate 2 Trigger 1 Trager 2 Run Stop Step Over Reset LFSR Restart Memory O D e D 2 e gt Baseline Reset 2 Disabled Accepted Tigger Trigger ON OFF Machine Overloaded Analog Saturation 2 We Pulse width ns pro mn a E La O Disabled Accepted Trigg
Download Pdf Manuals
Related Search