XAS User Manual
Contents
1. 2 Neat OPEN the Shutter two PSH2 cvs ranchos BO Eranch amp motr aezae NB this shutter PSH2 is in sh sit POM PSE E COMMON with the SGM beamline Closing it could interrupujeopardize the SGM Users experiment and the Shutter three PGM PSH3 from the PGM control panel User interface ce ranching Js gran B Psh esti paMESI 3 Last OPEN the hinting your sample Shuters Psg Est Endstation Gate Valvas Solid State Chamber Sample Loading und Removing Procedure Removing 1 Make sure FROM THE PGM CONTROL PANEL VLS PGM Manual pages 1 and 2 the high voltage 1450 V on the fluorescence FL detector is MI ramped down and off the End Station gate valve VVR4 I21 1 beamline is CLOSE Rotate the sample manipulator 180 cloak wise CW sample now facing the 0 290 Open the on the transfer side downstream by tuming CCW 4 Push the magnetic transfer rod into the main chamber don t push it too hard too fast if it is stiff pushing and rotating the magnetic spinner a simple rotation should unlock the sample from the main chamber manipulator once it is locked onto the transfer holder tently pulling the transfer rod back to the load lock area ideally in one motion pulling and rotating to avoid the drop of the sample due to vibration 5 Make sure you see the end of the transfer rod with the sample from the window of the load lock section then close the Asana g2. Start the PGM Control Panel by double clicking on the icon On the left hand side ofthe panel there are A The switches of the High Voltages apply to the Branch A Here you tum ON OFF the HY FL before amp after a scan see Sample Loading Procedure on page 22 when the Absorption Chamber is on Branch A 2 The switches of the High Voltages apply to the Branch B Here you tum ON OFF the HV FL before amp after a sean see Sample Loading Procedure when the Absorption Chamber is on Branch B 3 Active Branch line Selection A or B Before star the run make sure the right Brunch line is selected 4 The state CloseW Open of the Photon Shutters along the beamline From here you can actually OPEN and CLOSE the Shutter two PSH 2 and the PGM Shutter three PSH 3 120 01 without the use ofthe Panels PGM frontend and PGM beamline on page 11 5 The state Closed Open of the End Station gate valve for both branches From here you can actually OPEN and CLOSE the Gate valves VVR 4 121 04 and VVR 1611 4 122 04 without the use of the Panel PGM beamline on page 11 In the central part of the panel there are 6 Ener Acquisition Program automatically sets this energy to the requested value 7 Emergency Stop Button it stops any moving motor in the PGM Control Panel amp Grating Selection High Medium Low Before start the run make sure you are working with the right grating 9 SLIT WIDTH selections in
3. nA TEY nA FLY aA Si Photodiode current nA Branch A Exit Slit Lower Blade current nA Branch A Exit Slit Upper Blade curent nA Branch B Exit Slit Lower Blade current nA Branch B Exit Slit Upper Blade current nA Entrance Slit Lower Blade current nA Entrance Slit Upper Blade curent nA Undulstor Gap mm SRI current mA Encoder Feedback Beamline Energy Beamline Ni mesh lo current nA 14 Trouble shutting In the RARE event that you are not able to OPEN the Shutter two PSH2 there are a number of things that should be check Start the PGM FRONTEND and PGM BEAMLINE by double clicking on the icons Tore aero Te py ica tues Check that the beamline has been ENABLED by the control room and that the Safety shutter is opened by the panel outside the hutch If closed MANUALLY open the Safety shutters pushing the green button From the Computer screen OPEN the Shutter two PSH 2 on the PGM frontend panel PGM BEAMLINE panel Check that all valves VVR are OPEN on the PGM frontend and PGM beamline panels H closed OPEN the Shutter three PSH 3 120 01 on the PGM beamline panel NB All the valves VVR of the active Branch have to be in the OPEN position to be allowed to open the Shutter three PSH 3 120 01 Keep these two panels open and running on one of the Desktops all the valves VVR are OPEN but you still cannot OPEN the Shutter two PSH2 SGM PGM flow s
4. pm 5 250 jm The Entrance Slit common for both branches and the Exit Slits Branch A or B gy Selection in eV and related feedback Once you start a sean the User Data The right hand side of the panel gives indication about 10 The Ring Current and Beam Lifetime and a general Beamline Overview cole roca l oaza Elan FTE iar PET Pis cs RAT 0 Cata eee a sus paa To change the grating to the desired range 1 Select from the Grating Mirror Selection box the desired grating 2 Wait il all the three numbers in the white boxes HE MILE and Grating have stopped They represent the motor step positions for the optical components inside the monochromator 3 Type in the turquoise box 6 an energy close the value you need for your scan this will adjust the Undulator to work in the range defined by the grating Always remember that this process is TIME CONSUMING Things to do AFTER EVERY INJECTION After every injection as soon as the control room has enabled the beamline and BEFORE start a new data acquisition you will have to OPEN few Photon Shutters First thing to do is MANUALLY OPEN the Safety Photon Shutter SSH by the panel outside the hutch pushing the green button Its possible check the state of the shutter from the PGM control panel User interface page Buna ae aris
5. the upstream of the beamline and turn BIN the FL high voltage 1450 V L USERS DATA ACQUISITION Start the USERS DATA ACQUISITION by double clicking on the icon Fle Gioahies Hap ee scan oso rar a apa om ET pac Fe trim le A anu Tae Drang pan Emma renon p nas Comment AAA oum repa aa Soup Spacu Fe restr pan JT pr ie nen e e Work your way down the directory tree until you see the configuration file required this file is in the home pgnvDesktop USERS directory folder Fie Graphics Hale oni ean vns usara aaa ZEN create Da Delete Fie Rename Fie ncimupgriDesipiSEas i PGM Py names sur TOF _Energy Scan USERS Apia EOL Energy sean USERS Banc Me Distant Coniguratonse Dongs ts Selection homempanDesteapmISERS pares 10 In the Sean page make sure you are scanning over the right energetic range from higher Start Value to lower Final Value energy with a negative step Delta Value PIE Fie crape He ono Sea evens ine rup sean nane E A Tiger on see A ne zor ve petre ia vate___ LE ES EE pos eee NOISE Ea or io CATA Ta ic fos Tis 7 E I Tage see Puras pes Poe rue j men EE pomana miron onsen Wat fe Sel at wat Dey Tne Sei conre Tosi coe RA Frag Soa SEH You can also s
6. CID on call Ask the CID on call to log on as root onto IOC1611 427 and do the sequence AskV stop AsHV start Multiple sample holder In the unfortunate the multiple sample holder breaks usually somewhere around the A highlight section due to the very intense use you will have to contact either the beamline staff or the Floor Coordinator and ask for the technical mechanical support on call Let the load lock section up to the air as when you load a new sample and ask to the person an call to remove the multiple sample holder ladder from the B flang and substitute that with a blank flange Let the load lock section pump till it teaches a pressure better than 6 mTorr AL this point you will be able to continue your experiment loading just one sample every time
7. ate Valve between the main chamber and the load lock area 6 Tum off the turbo pump of the load lock section pushing the str stop button vent the load lock section using the Nitrogen line green valve open the door with he view por unlock the sample from the transfer rod and you are now ready to loud another sample 04 connecting 10 the upstream of the Loading With your sample properly mounted on the sample holder and the load lock section up to the ar load the sample tothe transfer rod Close the Nitrogen line close the door with the view port and start the pump pushing the start stop button 3 Wait ll the pump reaches the NORMAL OPERATION and th SENGA is better than 6 1 mTorr ie 58 mTorr open the CCW between the load lock and the main chamber the should stay better than 34 10 Torr ie 28x10 Torr 4 The sample holder on the main chamber manipulator should be facing the transfer side a simple rotation on the magnetic spinner should unlock and Jock the sample to the manipulator 5 Pull the transfer rod out of the main chamber gently and in one motion be sure that you see the end of the transfer rod from the view door 6 Close the manual gate valve turning CW and rotate the sample Gn the main chamber 180 CCW facing the beam 0 7 1 the n reasonable better than 5x10 Tor Le 48x10 Torr FROM THE PGM CONTROL PANEL switch OPEN the End Station gate valve VVR4 121 12 04 between the main chamber and
8. can over several consecutive regions with different steps delta values To add a new region click the New bution To delete a region click the Delete button To visualize the data while acquiring select Start ROOT Monitor from the Graphics menu cio BERE ee Ear Sos Monturi from goe ag Topaz FI EOS Conus ES Set Custom oe Reef vor sa AS na 2108 acto Fam PASESER Browse Fia nane EET oe TE Cay EAT EA This window will pop up Keep the BLGraph window always open DO NOT press the Quit button Automatically a new plot will start at the starting of each scan Next check the settings in the Control Page see picture on page 6 User s data are generally saved in Thomelpgny Desktop USERS under your own directory The Directory Path shows where yours file will go In the File Name the symbol Sd will give you sequential file numbers for sequential runs Click Star in the Control page of the Data Acquisition when you are ready to scan BLI611 ID 2 Energy fbk AIGL 4 11 nA tok A1611 4 09 nA fbk A1611 4 08 nA fbkt A1611 4 10 nA fbk A1611 4 02 nA fbk A1611 4 03 nA fbk A1611 4 04 nA fbk A1611 4 05 nA fbk A1611 3 03 nA fbk A1611 3 0 nA fbk UNDISIL apar PCT1402 01 mA fbk SMTR1611412004 ene fk BL1611 ID 2 Energy A1611 4 12 nA fbk VLS PGM PV names Beamline Energy feedback eV EndStation Ni mesh o current
9. witches display by double clicking on the icon Check that ALL the Flow Switche indicators 0 are green The indicators beginning with SWF1611 3 are water cooling indicators inside the SGM PGM hutch The SWFI611 4 are indicators outside the hutch water cooling any of the indicators are red you will have to contact either the beamline staff or the Floor Coordinator and ask for the technical support on call The person on call will re equilbrate the water flow along the beamlines Once done the indicators should turn green 8 and you should be able to OPEN the Shutters and proceed as normal Darro ae 111D SGM PGM Flow Switches 0 sunno Osuna surion snooz swri6tt 510 03 O suniera neoa suri6tt 3 10 05 suriett si0 05 0 sunicn a ne or 0 surieit 3 10 00 suriett 3 10 09 O sirio surion seo suri6tt 3 10 02 suri6tt 3 10 03 suriett t0 01 0 sumenna 0 sunno suren soor O sureni auioa1 3 2010 O sure 0 sunen tnece O urionane os O suenan 0 suriets 4 20 01 AS High Voltage Controller 1 the HV controls Y amp 2 on page 2 are not responding ie you try to switch OFF or ON and nothing happen and the pressure in the end station chamber is better than 54107 Torr it means the HV control application has locked up The options are During office hour contact Dr Ru Igarashi office 2025 phone x 3751 Otherwise contact the Floor Coordinator and ask forthe
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