MORPHEUS user manual
Contents
1. Y o aie a a or P ul 10 L Loja e E 20 qu uet d rl 40 E 800 i 50 80 60 40 20 0 20 40 60 80 4 2 0 2 4 VA nominal VA nominal Figure 2 1 Hysteresis of the 1000 100 A sample magnet Measured 10 mm away from the normal position of the sample surface The lines of regression are B G 8 6 I A B G 8 5 I A 3 5 and B G 8 5 I A 1 2 6 THIS DAMNED DOESN T WORK WHY 19 2 6 This damned doesn t work Why e UTT doesn t work Check if STT is decoupled sttc e STT doesn t work Check if STT is coupled sttc no motor is drivable Maybe the SPS is local You can check that by typing remote If so type remote 1 to take control back to SICS Maybe the controllers are local In this case some of the green buttons on the controllers left rack are lighted Call the local support One motor is not drivable Errormessage WARNING Trying to fix ERROR HW EL734_BAD_STP ERROR cannot start device DEVICE This motor is not enabled in the left rack You can figure out which switch is the right one by searching the name of the motor on the small white labels in the rack On that label there s as well a number telling you which switch in the three rows above is responsible It should be on enable 20 CHAPTER 2 SET UP OPTIONS OF MORPHEUS Chapter 3 Direct access to the motor controller The sics commands mot lt x gt give the opportunity to check or change the parameters of2. b c drive the detector into the direct beam and close the diaphragms dr stt O dah 0 8 0 82 drive the sample out off the beam scan the polariser cscan pol 0 0 1 15 2000 go to the center of the obtained symmetrical curve and define it as zero dr pol lt center gt Sp pol O 3 insert and align the test sample a b incline the polariser to get an unpolarised beam dr pol 1 2 adjust the test sample STY and STH if possible take a well known polarising multilayer or supermirror and go to a well polarising position w in reflectivity mode dr sth lt w gt stt 4 adjust the flipping and compensation field a incline the polariser to get a polarised beam dr pol 0 6 saturate the sample and go to the required sample field strength dr sbz 80 dr sbz sample field strength switch the flipping field on pff 0 6 A for 4 74 A dr pff 0 6 scan the compensation field and go to the maximum sscan pfc 0 2 21 2000 dr pfc maximum scan the flipping field and go to the maximum sscan pff 0 2 21 2000 dr pff maximum repeat items e and f until the result is self consistent 12 CHAPTER 2 SET UP OPTIONS MORPHEUS 5 adjust the polariser POL a scan POL with PFF and PFC on and off respectively dr sbz sample field pff flipper current gt pfc compensation current gt cscan pol O 0 1 15 2000 dr sbz value pff 0 pfc 0 cscan pol O 0 1 15 2000 or quasi simultaneously
3. dr ive tt lt value gt Set a delay time e g to make sure the temperature is stable wait time in seconds gt 2 5 5 cryomagnet controller IPS IPS intelligent power supply allows to switch and change the strenghth of the magnetic field of the cryomagnets MA02 and Activate IPS within the SicsClient ips on check settings ips list drive field ips set lt value gt 2 5 6 magnet controller If necessary the magnet controller can be invoked in SICS for each magnet power supply individually by typing evfactory new pff el755 lnsa07 4000 evfactory new pfc el755 1nsa07 4000 evfactory new aff el755 1lnsa07 4000 evfactory new afc el755 l1nsa07 4000 evfactory new sbz el755 lnsa07 4000 71 Flipper 1 7 2 Compensator 1 7 3 Analyser 74 not yet active 7 5 Sample magnet The status current through the magnet in Ampere can then be obtained with magnet gt and changed by dr ive magnet lt value gt where magnet gt is one of pff pfc or sbz The value entered is the nominal current through the coils in Amps A Allowed ranges are 2 0 A to 2 0 for pff and pfc and 100 A to 100 A for sbz The actual field strength close to the center of the 100 magnet can be estimated approximately from the graphs in Fig 2 1 15 CHAPTER 2 SET UP OPTIONS MORPHEUS amp 5MA 83VA 10 85UA 35 49 i P i 30 y 20 e my 10 dee FE RE
4. 000 Sc 00 0c TO 0006 00s T T Jed v cO8ST 0000 I 0004 00S IE 000 Sc 00 0c TO 0006 00s T T ded 00091 0000 I 0004 000 c 000 Sc 00 0c TO 0006 00s I I Td TS99T 0000 T 0004 000 000 Sc 00 0c TO 0006 00s T T utd T A b A 9 p uy pi de 99 uu z V c N 19 OIJUO9 10 S1o3ourered 1OJOJN QR CHAPTER 3 DIRECT ACCESS TO MOTOR CONTROLLER 24 96Ic 0000 I TI 000 7 09 9c6 cc 00 0c TO 0001 T 00 I I cOd cT 0 0000 T 0 000v 000 09 000 081 00 0c TO 0001 I 0001 E 0 IOd II 0 0000 T I ooos 00S v 00g I 00S I 0 ADS OI OSCOT 000 0 T I 0005 0041 v 0001 T 0001 0 XDS 6 0 000 0 T 0 0001 00 0c TO 0001 I 0001 I 0 53 8 4166 000 0 T TT 000T 00076 000 S6 00 Oc TO 00c T 00r I I 2 66 0000 I TI 000T 02006 0 6 6I 00 oc TO 00S I 00S I ADS 9 41 6 0000 I TI 000T 000 0 000 0c 00 oc TO 00S I 008 I T XDS S vVSI 0000 I 11 0001 OAT PSE 0 84981 00 Oc TO ooz I 00T I I ALS v Ccv8T 000 0 T TT 0001 0 TO 0 C 8 I 00 Oc TO 00c I OOT I I XLS 9cTv 0000 E cL 0001 VELVET 99C 8cT 00 T TO 0001 OOT I I 11S lt 609 0000 I 0 0009 000 0SZ 000 0Sc 00 oc
5. Greek mythology His name means he who forms or molds from the Greek morphe and is mentioned as the son of Hypnos the god of sleep Sources 1 Encyclopedie van de Mythologie 2 Prisma van de mythologie
6. MORPHEUS on the computer morpheus psi ch Start the SicsClient sics amp a new window will open Activate SICS via the pull down menu in the SicsClient Connect MORPHEUS 2 CHAPTER 1 SHORT GUIDE and authorise User Parameters Set Rights standard user name and password are morpheususer and 031ns1 1 2 1 six six is an alternative to the standard Java SICS commandline client Why an alternative SICS client e it is much faster e it does not need the X Window System e it connects automatically to the instrument if you are logged in to the instrument computer It has the full functionality of the standard commandline client but no graphical interface This means you can not and have not to use the mouse there are no colors to distinguish commands responses and errors instead of clicking on the interrupt button you have to enter stop the history is only accessible with the arrow keys The new version e displays the SICS status e hasa slightly different mechanism for authorisation you have to enter SICS username and password the first time you use it 1 3 DEVICES AND SETTINGS 3 1 3 Drive Devices and Check Settings The current value of a device is reported by just typing its name see table 1 page ii lt device gt There are hardware and software limits for all motors These can be checked for an individual motor by typing lt device gt list To change the software limits or to define a new zero positio
7. of the measurements what is measured experimental set up micro guide sample magnet etc which data files were created at least from to changes in the set up e g from UTT to STT changes of the wavelength MTH adjustments with the LASER damages errors state of the instrument at the end diaphragms alignment changes at the end e drive UTT STH to 0 e store tools and equipment away e make sure that there s nothing on the blue table e take away your samples The three axis spectrometer TASP at the end of beam guide 14 has a higher priority than MOR PHEUS This means you have to respect their wavelength requirements and eventually change MTH Also if you will not measure for a longer period please change the wavelength to 5 8 A EEJ dr mth 60 Merci vielmal Jochen Stahn CHAPTER 1 SHORT GUIDE Chapter 2 Set up options of MORPHEUS 2 1 Specifications and characteristic measures 2 1 1 monochromator and wavelength ranges Pyrolytic Graphite 002 on Si lt 111 gt miss cut 7 22 2 6 708 A 2 dsi 111 6 271 A HWFM of Graphite 002 The normal of the scattering plane of the Pyrolytic Graphite monochromator is parallel to the y axes of its coordinate system in the zero position MTH 0 Since the angles MTH and MTT are defined to be positive in the direction counter clockwise when seen from the top they are negative in the accessible range
8. polscan 0 0 1 15 2000 sample field lt flipper c compensation c gt b calculate the flipping ratio and decide which value of POL you want Find a compromise between flipping ratio and intensity c drive POL to the optimal value dr pol optimal value gt 6 eventually repeat items 4 e 4 and 5 until the result is self consistent That s it 2 3 MULEY REFLECTION 13 2 3 Muley Reflection set up This set up is used to measure simultaneously the reflectivity of two super mirrors of equal sizes and reflecting properties over the full surface The samples are inserted in the u yoke with a distance of about 1 mm The opening towards the monochro mator of the so formed channel has to be centred on the STT axis The 20 rotation is performed with the drive UTT STH and STT are not used STT has to be decoupled see section 2 5 2 20 range ca 4 resolution A 20 0 001 Rotation vertical axes Diaphragms Translation UTZ A polarisation analysis for this set up is not yet implemented 14 CHAPTER 2 SET UP OPTIONS OF MORPHEUS 2 4 Single Crystal Diffraction set up For single crystal diffraction there are two possible options for small tilting angles 20 the use of the goniometer SGX and SGY on top of the translations STY STX and the manual z stage is possible as shown in the sketch for more complicated problems a Euler cradle can b
9. the shielding towards the NCR shutter reset the STH zero position sth softzero 0 dr sth O eventually disconnect the cables to STX and STY and unmount these together with the X95 bar 2 2 3 water supply for the sample magnet If the cooling water circuit for the sample magnet is interrupted for more than about 5sec the pump stops In the right rack the LED water cooling is blinking To re animate it you ll have to go to the heat exchanger which is sited behind TASP next to the back side of SANS I press the red button St rung and then the green button Betrieb Wait an instant to make sure it is running stable 2 2 POLARISED REFLECTOMETRY 11 2 2 4 polariser adjustment It is assumed that the polarising supermirrors are already adjusted within the polariser magnet All numbers given below correspond to A 4 74 for other wavelengths you may have to chose other values The flipping current pff depends on the wavelength chosen while the compensation current pfc depends on the field of the sample magnet SBZ 1 insert hardware a b 4 if needed the Be filter should be inserted first 2 5 1 page 15 put the polariser magnet to the upper position insert spin flipper in between polariser and second diaphragm D2 as close to the sample as possible connect flipper and compensator cables PFF and PFC put the polariser magnet to the lower position 2 align the polariser a
10. 0001 09 CLOTET T HIS T A b A 9 9 p uy pi de 99 uu g 8 19 o13uoo 10 sio3eurered 1030 N qc 91 25 0 0 0000 I O O 0001 000 09 0007 08IT 00 oc 000T 000T I 0 531 8 0 69v9 0000 T JO O 0004 000cT 009 Z 000 Oc 0000 08v I 4 AAW 2 00 0000 I JO O 0001 000 09 000 08T 00 Oc TO 0001 0001 I 0 534 9 0 OS0c 0000 T JO O 0001 0467 0S0 S 00 Oc TO 0001 0001 I 0 ADN 3 O T009 oo00 T JO O 0001 6v9 VI TSe S 00 Oc 00v gsc el T ALN v 0 SIvv 0000 I JO O 0001 I9 T 6 CVI 00 Oc 00v 9 T 4 IG8c87TT 0000 oz oz 0 OOST 000 0 000 00T 00 T TO 0008 9607 1 TIN c 0 4496 00001 0 OO0T O6Z EZ 000 00T 00 oc 0001 oos T T HLW T MIA b u A f y 3 9 p wy pj e da 29 uw y 93 19 O013u00 10 S1o3oureded 1030 N 92 9 q 26 CHAPTER 3 DIRECT ACCESS TO MOTOR CONTROLLER Morpheus The Greek god of dreams He lies on a ebony bed in a dim lit cave surrounded by poppy He appears to humans in their dreams in the shape of a man He is responsible for shaping dreams or giving shape to the beings which inhabit dreams Morpheus known from Ovid s Metamorphoses plays no part in
11. Be eS 8 2 L4 standard set ups 4 4406 ed dal dd IS 8 2 2 Polarised reflectometry i s a Ro EE E e ata Mote he dd 9 2 2 1 installation of the polarised reflectometry set up 10 2 2 2 removal of the polarised reflectometry set up 10 2 2 89 water supply for the sample magnet 10 2 2 4 polariser adjustment cc a ese 9 UAR a m 11 2 3 Muley ReHectlon n A status eee ot alae cn P mato Sede se Gro aret ettet tut 13 2 4 Single Crystal Diffraction sa m uo he a UU Duae 14 2 5 Special equipment ok ae ea ee RR xeu ee eS 15 251 Beshlt t a este eh eh gh I eere RR BOS dS 15 2 5 2 remarks about the 26 arm ss 16 2 5 3 the diaphragms aora a A Re e d 16 2 5 4 temperature controller TECOS o 17 2 5 5 cryomagnet controller 2 23 pri kd a a O E 17 2 5 6 magnet controller c s i 4 3052 ELA SA AE E Re 17 2 6 This damned doesn t work Why en 19 3 Direct access to the motor controller 21 iii CONTENTS Chapter 1 Short guide In this chapter only standard features of MORPHEUS are explained such as polarised reflectometry and single crystal diffraction For more complicated set ups please refer to http 1ns00 psi ch sics morpheus htm 1 1 Introduction to SICS SICS means SINQ Instrument Con
12. MORPHEUS Manual Jochen Stahn Important telephone numbers PSI private Jochen Stahn 1st instrument responsible 2518 0 056 4502588 Jay Padiyath 2nd instrument responsible 3037 Stephan Fischer crane driver more than 1t 4118 MORPHEUS cabin 3188 MORPHEUS instrument 3180 RITA II instrument 3007 Version July 28 2004 Table 1 Names and aliases of selected devices motorised stages and magnets on MORPHEUS E 5 D 2 E Yn fe i g E c gt n E 8 313 3 5 1 DIR Diaphragm 1 Right S1R A 2 2 DIL Diaphragm 1 Left S1L 3 D2R Diaphragm 2 Right S2R 4 D2L Diaphragm 2 Left S2L 5 D3R Diaphragm 3 Right S3R 6 D3L Diaphragm 3 Left S3L 7 DxT Diaphragm x 1 3 Top see 2 5 3 8 DxB Diaphragm x 1 3 Bottom see 2 5 3 9 UTZ U yoke Translation Z A6 10 UTY U yoke Translation Y A5 1 STH Sample THeta A3 SOM TH OM B 3 2 STT Sample TwoTheta A4 52 TTH 2T 3 STX Sample Translation X STU 4 STY Sample Translation Y STL 5 SGX Sample Goniometer X SGU 6 SGY Sample Goniometer Y SGL 7 UTT U yoke TwoTheta MGU 2 T 9 SCX Sample Cradle X SCH 10 SCY Sample Cradle Y SPH ATX 11 PO1 POlariser 1 POL 12 PO2 POlariser 2 ANA 1 MTH Monochromator THeta A1 MOM C 4 2 MTT Monochromator TwoTheta A2 M2T 3 MTX Monochromator Translation X MTU ir 4 MTY Monochromator Translation Y MTL ir 5 MGX Monochromator Goniometer X ir 7 MFV Monochromato
13. Reflection MTH PG 002 24 65 24 65 2 728A 6 081 A PG 004 24 65 24 65 1 365 3 042 A Si 111 24 65 31 72 3 230A gt 5 965 A PG 002 PG 004 Si 111 Da 2 1 2 hardware ranges STH 173 4185 STT 180 4 133 DxR 1mm gt 12mm DxL 1mm gt 12mm DxT 0mm 30mm DxB 0mm 30mm 2 1 3 distances CHAPTER 2 SET UP OPTIONS OF MORPHEUS monochromator sample position 1937mm standard 1500mm minimum 2040mm maximum sample position detector 1816mm maximum D1 D2 670mm standard D2 sample position 430mm standard Tanzboden beam height 1488mm X95 profile top beam height 227 mm STH beam height 400mm STH spacer beam height 250mm STH spacer STX beam height 205mm STH spacer STX STY beam height 160mm STH spacer STX STY SGY beam height 106mm STH spacer STX STY SGY SGX beam height 60mm STH STX beam height 345 mm STH STX STY beam height 300 mm tracks on the 20 arm beam height mm The following sketches show the standard set up of MORPHEUS for polarised reflectometry page 9 multi reflectivity page 13 and single crystal diffraction page 14 In all cases the settings are MTT 90 A 4 74 A STT 0 and the side view is seen from Villigen or better from DMC Convention for the coordinate systems each component tran
14. e long detector arm as sketched it is possible to use the short arm with the better shielded detector 10 CHAPTER 2 SET UP OPTIONS OF MORPHEUS 2 2 1 installation of the polarised reflectometry set up 1 start configuration sthsoftzero 0 sth 0 empty w table mount the black X95 bar on the w table and on this the slider with STY and STX flushed towards the area entrance 3 connect the cables to STX and STY and switch the power supplies on if necessary mount the z translation stage and the base for the sample magnet 5 carefully put the sample magnet on the base with the crane the open side of the magnet should point towards Villigen unhook the crane connect the cables of the magnet e water cooling e power supply earth and controller e sample sucker drive to 4 74 dr lambda 4 74 insert Be filter look at subsection 2 5 1 place the spin flipper in between polariser and second diaphragm 10 11 put the polariser to its lower position the alignment of the polariser is explained in section 2 2 4 2 2 2 removal of the polarised reflectometry set up 4 65 N rn Switch off magnet power supplies put the polariser to its upper position disconnect the spin flipper unmount spin flipper disconnect cables of the semple magnet e water cooling e power supply earth and controller e sample sucker remove sample magnet with the crane and store it under
15. e mounted directly on the w table to form a full 4 circle diffractometer The x and rotations are called SCH and SPH respectively Rotation horizontal axes Rotation vertical axes Diaphragms Translation Detector S Optionally the long detector arm with the u yoke can be used The u yoke allows to insert and rotate an additional optical device as a collimator or an analyser 2 5 SPECIAL EQUIPMENT 15 2 5 Special equipment 2 5 1 Be filter The Be filter should be kept permanently at low temperature So even if you don t use it make sure it is functioning The temperature and liquid N supply are controlled by the device in the right rack There you can read the actual temperature If the Be filter gets warm please inform the beam line scientist or Roman B ege 4299 or Stephan Fischer 4188 insert the Be filter 1 c AN DoT hv ES o close the main shutter of beam guide 14 if possible inform the users on TASP move monitor and first diaphragm towards the sample position be careful with the cables remove the black shielding remove all inserts behind the shutter insert the Boron Carbide Aluminium blade behind the shutter insert the Be filter mount the ash tray underneath the Be filter and put the spill in it insert Boron Carbide Aluminium blades to reduce the beam mount the black shielding as tight as possib
16. he computer All horizontal blades namely D1R D1L D2R D2L D3R and D3L are encoded and have individual motor cards and therefor addresses see table 1 The vertical blades DxT and DaB x 1 2 3 are not encoded and there is only one motor card for the three upper DxT and one for the three lower blades DxB For this reason a reference run is performed automatically each time a blade in an other diaphragm is driven This takes a couple of seconds The vertical blades should be moved one by one ie by using the command dr ive blade value without further devices It is possible to drive the blades into one another This will destroy the diaphragm So please don t do it The slit width is given by the sum of corresponding blade positions E g to adjust the first horizontal slit to 1 mm type dr ive dir 0 5 dil 0 5 To save time and typing it is possible to use the command shortcuts dah for horizontal apertures and dav for vertical apertures dah lt value1 gt lt value2 gt lt value3 gt drives the diaphragms D1 D2 and D3 to the apertures valuel value2 and value3 The same is true for dav lt valuel gt lt value2 gt lt value3 gt but here driving takes up to 5 minutes 2 5 SPECIAL EQUIPMENT 17 2 5 4 temperature controller TECS Activate TECS Seni starttecs Call TECS fang tecs exes plot MESSIS return Activate TECS within the SicsClient tecs on check temperature tt set temperature
17. i m int H read input m msr m hex run status m ss m hex show status flags de m set default all parameters echo vali int 0 host mode without echo 1 terminal mode with echo 2 host mode messages delayed rmt vali int set remote flag 1 0 rmt int read remote 0 offline 1 host port active stop all motors reset with default parameters help command list m message list parameter list deg degree ms motor steps ms s motor steps per second es encoder steps ds 25 The Motor parameters for controllers A 2 page 23 B 3 page 24 and C 4 page 25 f the abbrev Table 3 2 in table 3 1 lons is given iati meaning o 0 0000 I 0 0001 000095 000 08T 00 oc 0001 00s T 0 538 CT 0 0000 I 0 0001 000 09 000 08I 00 0c TO 0001 0001 T 0 53 TT 686 0000 I TI O00T OVO V6E 096 SvI 00 0c TO 00 006 T T ALN OT GTLT 0000 T TT 000 00241 000 6ST 00 0c TO ooz OOT I I ZLN 6 00909 0000 I I 0004 008 S6T O0c vOc 00 0c TO 0006 00s I 0 geId 8 00v8S 0000 I I 0004 000 86T 000 c0c 00 0c TO 000c 00s T 0 ie Td 2 12641 0000 OT I 0004 vV IE 9S0 Sc 00 0c TO 0006 00s E I 9 LVVST 0000 OT I 000v 00S 0E 000 Sc 00 0c TO 000c 00s T T 4 cOOST 0000 IT 0004 000 TE
18. le move the first diaphragm and the monitor back towards the shutter 11 open the main shutter of beam guide 14 remove the Be filter 1 cO gp Wd N close the main shutter of beam guide 14 if possible inform the users on TASP lift the polariser magnet to the upper position move monitor and first diaphragm towards the sample position be careful with the cables remove the black shielding take out the Be filter and place it on the wooden base below unmount the ash tray and position it on the floor put the spill in it remove the Boron Carbide Aluminium blade in front of the shutter insert whatever you need normally the adapter for the collimators and at least some Boron Carbide Aluminium slits to reduce the background mount the black shielding as tight as possible 10 11 move the first diaphragm and the monitor back towards the shutter open the main shutter of beam guide 14 16 CHAPTER 2 SET UP OPTIONS MORPHEUS 2 5 2 remarks about the 20 arm There are two principle modes to perform the 20 movement of the detector e 20 rotation with stt The lower of the two Huber rotation stages does the work For the movement the 20 arm is lifted by air cushions Accessible is in principle the range 130 lt 20 lt 130 This range is restricted by the neutron guide the stairs and maybe by sample environment For this mode the STT drive has to be coupled This can be checked wi
19. n type device softlowerlim lt value gt lt device gt softupperlim lt value gt device softzero lt value gt BE CAREFUL WITH THIS The hardware limits can not be changed Set a value for the actual position of a device redefinition of the zero position sp lt device gt lt value gt Drive a device to a value dr ive device lt value gt Drive several devices at the same time dr ive devicei lt valuel gt lt device2 gt lt value2 gt etc 1 4 Standard Scans before a scan is started The first part of header of the scan files looks like this SR Be TOPSI Data File eebebekekxeekekekekeelekeokokeeleeookoeleookoeleeok Original Filename home TOPSI data 2002 morpheus049992002 dat Title Piezoeffekt in Quarz 300 T RT U 2000V User J Stahn Sample Name 8102 100 File Creation Date 2002 10 25 10 04 19 Last Scan Command sscan sth 56 8 56 8 3000 80000 FO OO OO RA GA A A A I RA A A a 22k 2k a 3 2k 2k where the following parameters were given by the user title Piezoeffekt in Quarz 300 T RT U 2000V user J Stahn sample Si02 100 If no entry is made the previous one maybe by someone else is used According to these entries and your notes in the log book your scans can be found again within the about 6000 files stored by the end of the year So please don t forget them One also has to define which mode of triggering is required It is possible to count on time or on monitor co
20. p frequency h m vali val2 real deg mm low high software limits g j m vall int ms s top speed Sk m vali int reference mode PR 11 low limit index is reference point 1 low limit is reference point 0 absolute encoder 1 high limit is reference point 2 separate reference point 11 high limit index is reference point 12 separate index is reference point 1 m vall int ms backlash m m vali int es position tolerance q m vali reference switch width t m vali int one sided operation flag 0 no m vali int null point W m vall int air cushion dependency m vall int es circumf of encoder am hex active motors status u m vali real deg set actual value v recalculated uu m real deg set actual value v unchanged ud m hex ds read actual value p m real deg read last target value P m vali real deg drive motor to target value pd m vali hex ds drive motor to target value pr m va11 int ms drive motor d steps n m drive free from end switch s m stop all motor s r m reference run u changed rf m reference run u unchanged ff m vall int ms s drive forward with ramp and frequency val1 fb m vali int ms s drive backward with ramp and frequency vali sf m vali int ms s drive forward with frequency f sb m vall int ms s drive backward with frequency f Tac m int status air cushions on of 1 0 E ac m vali int de activate air cushions 0 1 E so vali int set output high low 1 0 SIUE bin H read all inputs r
21. r Focusing Vertical MCV 1 PFF Polarizer Flipper Flipper 7 2 PFC Polarizer Flipper Compensation 3 AFF Analyzer Flipper Flipper see 5 SCZ Sample Current Z SBZ 1 8 TECS 1 DC1 Direct Current motor 1 9 2 DC2 Direct Current motor 2 3 DC3 Direct Current motor 3 4 DC4 Direct Current motor 4 10 IPS Intelligent Power Supply ir instrument responsible only f UTT measures in mm U2T in degree i SCZ measures the current A SBZ the magnetic field GauB Contents List of devies sri E Aeg weh tt e a ta a a ii 1 Short guide 1 LI Introduction to SICS LA eee A RS a a AA Ye ee 1 12 Start SICS 4d ae rs a AN bee AS ee eg 1 e 88 ebd Perte dU us e xe EAT NOR S 2 1 3 Devices and Settings decern X 8 eod AA m m e XR Ra 3 LA Standard Scans a ue de dee ES eee AUR Rege d 3 174 1 USt COUTIU OS Quae tu ere E qa drop A MEE n uu anis rep Se etu tam 3 1 4 2 Step scan oo 3 44 44 E SRI ARR me me ect NN AUS 4 1 4 3 center SCAIT oe diate we be RE A AT e eee e elu ed Ble wee doe ANN 4 1 amp 4 where the scans are saved a a a E pE S E a a OE 4 5 Apertures E 4 16 The MORPHEUS Krnigge 6695 Se deg 5 2 Set up options of MORPHEUS 7 2 1 Specifications and characteristic measures 2 2 7 2 1 1 monochromator and wavelength ranges 7 2 1 2 hardware rang s 4 anise e ae a ee a m eS 7 2313 distanees AA ee a deg gla EE ahd E
22. slation rotation has it s own coordinate system where e the z axes is normal to the floor the positive direction is upwards for the zero position of rotation devices e the x axes is parallel to the beam for the zero position of rotation devices e the y axes is defined by y 2z x x e the sign of a rotation is given by the right hand rule 2 1 4 standard set ups reflectivity single CTI unpolarised polarised crystal furnace G A X95 profile magnet SGX CTI B base plate for STY F R SGY D C adapter plate E E E C D z translation stage D D D H E adapter plate C C C SGY F support for sample holder STX STX STX STX G sample holder gallows STY STY STY STY R adapter plate B B B B A A A A w table 2 2 POLARISED REFLECTOMETRY 9 2 2 Polarised Reflectometry set up This set up allows to measure the specular and off specular reflectivity and the transmission of samples with sizes in between several cm and 60 x 15cm A beam of up to 1mm width can be polarised with a transmission olarizer The spin state is selected with a Mezei type spin flipper The spin analysis is performed with a remanent transmission polariser 20 range for 4 74 A 5 lt 20 lt 133 dynamic range 5 to 6 orders of magnitude Coils Rotation vertical axes Diaphragms Translation In this set up the drive UTT is not used Options instead of th
23. t where lt thousands gt gives the 3 leading digits of the file number e g 003 for all filenumbers 3000 to 3999 It can be copied somewhere else via ssh with the command scp morpheuslnsg morpheus psi ch data 2004 lt thousands gt lt file gt lt path gt lt file gt where the default filename lt file gt is formed by the instrument name followed by the year n and a 6 digit integer number containing the scan number and the suffix dat e g morpheus2004n004132 dat A copy of each file is made to the common archive afs psi ch project sinqdata lt year gt lt instrument gt lt thousands gt lt file gt 1 5 Apertures For the diaphragms D1 D2 and D3 the following short cuts exist SIC dah lt widthi gt lt width2 gt lt width3 gt and dav lt highti gt lt hight2 gt lt hight3 gt where width1 and hight1 are the horizontal and vertical apertures of the first diaphragm respectively and so on The abbreviations mean Diaphragm Aperture Vertical Horizontal For dav driving takes up to 5 minutes Please see also section 2 5 3 1 6 THE MORPHEUS KNIGGE 5 1 6 The MORPHEUS Knigge It would be nice if all MORPHEUS users take care for the following items to fulfil formal requirements to prevent damaging of the instrument and to make it easier for the next users and me before the experiment e actualise safety sheet e insert experiment data sheet log book entrances e user name date and duration
24. th the command sttc 20 rotation with utt The rotation is performed by the translation stage at the end of the 20 arm The accuracy is higher and the time between two measurements is shorter but the range is limited to 152 55 exact values depend on the zero position For this mode the STT drive has to be decoupled This can be checked with the command sttc To switch from stt to utt one has to perform these steps 1 Open screw at the left of the STT housing 2 Pull the lever at the left end of the STT housing 3 Push in the black knob on top of the STT housing To switch from utt to stt one has to perform these steps 1 Put the 26 arm on air cushions press the buttons local and air cushion 2 theta on the small gray box right of the lower Huber rotation stage 2 Pull the black knob on top of the STT housing 3 Push the lever at the left end of the STT housing carefully maybe you ll have to rotate the 20 arm manually until the gear is completely caught by the spindle 4 Fasten carefully the screw at the left of the STT housing 5 Switch off the air cushions by pressing the buttons air cushion 2 theta and local It is possible to drive the 20 arm manually to a wanted position or out of the way by performing the steps mentioned above and just pushing or pulling the arm while the air cushions are active 2 5 3 the diaphragms There are 3 diaphragms on MORPHEUS which can be controlled by t
25. the mo tor controllers It is also possible to run a motor or to perform reference runs By using these commands you can destroy a lot So please use it only when you are sure what to do Other ways ask the instrument responsible Syntax mot lt x gt send key slot vali lt val2 gt with x a b or c the name of the controller tables 3 2a to 3 2c or table 1 key the parameter to be set read or table 3 1 the action to be performed slot the slot number of the device at controller x tables 3 2a to 3 2c or table 1 vali the first value for parameter action key table 3 1 val2 the second value for parameter action key table 3 1 Example Drive STT to 20 30 motb send p 2 30 Table 3 1 next page Parameters and commands for the step motor controller EL734 All parameters can be checked just by typing the controller name the parameter key and the slot number modify the values append the new value s 21 22 CHAPTER 3 DIRECT ACCESS TO MOTOR CONTROLLER key slot value type unit meaning mn m vali text motor name ec m vali val2 int encoder mapping type number ep m vali int encoder magic parameter a m vali int digits precision fd m vali val2 int encoder gearing number denom fm m vali val2 int motor gearing number denom d m vali real deg inertia tolerance e m vali val2 int kHz s start stop ramp f m vali int open loop closed loop 0 1 a E m vali int ms s start sto
26. trol System SICS is a client server system This means there are at least two programs necessary to run the experiment The first is the SICServer which does the actual instrument control work A user rarely needs to bother about this server program as it is meant to run all the time In principle all you need to do is to find out a device position to drive a device to reset its zero position and to scan it These items are explained in the following sections Here device stands for all motors currents voltages temperatures etc Convention for type setting in this manual e g normal explaining text is written in Roman the names of devices or fields are written in CAPITAL SANS SERIF the value related to a DEVICE is set in small sans serif what has to be typed is in typewriter font value stands for a required variable entry lt value gt stands for an optional variable entry entrances marked with are meant to be written in the command line in the SicsClient entrances marked with are meant to be written on the console e g in a xterm to drive w to 5 63 the abstract command is dr device value with device STH and value 5 63 what you really enter is dr sth 5 63 1 2 Start SICS 1 bo ww Check if the SICServer is running ps A grep SICS should report at least one line ending with SICServer morpheus tcl If not type startsics For this you ll have to be user
27. unts scan mode timer or scan mode monitor Read the actual setting counter getmode 1 4 1 just count To count for n seconds or for n counts in the monitor enter co ti lt n gt or co mn lt n gt 4 CHAPTER 1 SHORT GUIDE 1 4 2 step scan of one or more devices A step scan is performed for DEVICE from device start to device end in points 1 steps scan more than one device at a time the sequence DEVICE start end has to be repeated for every device JWJ sscan DEVICE start end points lt preset gt nx preset is the value of the preset for triggering the scan For scan mode timer its in seconds for monitor in counts e g w scan from 0 0 to 2 0 in 20 steps with 2000 counts in the monitor JUE sscan sth 0 0 2 0 21 2000 e g w 20 scan from w 0 0 to w 0 2 in 40 steps with 2000 counts in the monitor sscan sth 0 0 0 2 stt 0 0 0 4 41 2000 1 4 3 center scan of one device A center scan is performed for DEVICE from center steps X width to center steps X width in 2xsteps steps cscan lt DEVICE gt lt center gt width steps lt preset gt e g w scan around 5 0 with 20 steps to either side of step width 0 1 and with 4000 counts in the monitor FJ cscan sth 5 0 0 1 20 4000 1 4 4 where the scans are saved Every scan made is saved and a copy is made immediately after the end of the scan even if interrupted to the directory home MORPHEUS data 2004 lt thousands g
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