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MIDAS experiment „alc"
USER MANUAL
SR35, 05.07.2006
Data acquisition is running on psw407 (DELL Power Edge 2600).
AFS users can logon to pc5145, the local user account is l_musr_alc.
Data files are stored locally on psw407 in /home/l_musr_alc/exp/alc and
automatically copied to /afs/psi.ch/project/bulkmusr/data/alc/ti
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Summary of Contents for Midas SR35
- Page 1 MIDAS experiment „alc“ USER MANUAL SR35, 05.07.2006 Data acquisition is running on psw407 (DELL Power Edge 2600). AFS users can logon to pc5145, the local user account is l_musr_alc. Data files are stored locally on psw407 in /home/l_musr_alc/exp/alc and automatically copied to /afs/psi.ch/project/bulkmusr/data/alc/ti...
- Page 2 http://psw407:8080 start web browser: (PSI only!): Status page (the following screenshots are taken from pc4244…) USE ‘Konqueror’ !!!! (only IE, Mozilla, or Firefox)
- Page 3 Start a run for autorun sequence: set autorun_active = 1 (if 0: only single run) there are no ‘scans’ anymore!
- Page 4 Stop a run Do not interfere the stopping procedure – wait until the pages refreshes and shows status ‘stopped’.
- Page 5 Set Magnet change Demand value read Hall probe read NMR probe - field >= 0.0 - probe is locked - readout unit is Tesla - sum of returned errors (returned value < 0.0) -1.0 BUS DRIVER I/O TIMEOUT -2.0 BUS DRIVER ERROR -4.0 not in state LOCKED -8.0 state NOT LOCKED -16.0 state WRONG...
- Page 6 Set Temperature LTC21: Input: read values Output: set value LTC21_Analog_Set_Point (K)
- Page 7 Set Flow Demand = 3000 for T = 0 – 100 °C, set Demand = 10000 for cooling down, base temp. ???
- Page 8 History...
- Page 9 DO NOT TOUCH! ODB: Start frontends from terminal by running the command Shutdown all frontends: [l_musr_alc@pc4244 alc]$ alc_mcleanup Midas cleanup procedure for experiment ALC... Stopping MIDAS clients... 09:48:00 [ODBEdit] Program ODBEdit on host pc4244 stopped 09:48:00 [IPS120 SC] Program IPS120 SC on host pc4244 stopped 09:48:00 [alc_fe] Program alc_fe on host pc4244 stopped 09:48:00 [HALL_SCfe] Program HALL_SCfe on host pc4244 stopped 09:48:00 [ODBEdit1] Cannot shutdown client "NMR_SCfe", please kill manually and do an ODB cleanup...
- Page 10 ------ Semaphore Arrays -------- semid owner 0x4d05c027 0 l_musr_al 666 ------ Message Queues -------- msqid owner [l_musr_alc@pc4244 alc]$ alternatively: start midas daemons one by one without X-server: mhttpd -p 8080 -D [l_musr_alc@pc4244]$ alc_fe -D [l_musr_alc@pc4244]$ ips120_scfe -D [l_musr_alc@pc4244]$ ltc21_scfe -D [l_musr_alc@pc4244]$...
- Page 11 Separator: vncviewer sepii:0, pw: exhalle if only black screen appears use rdesktop sepii, user: halle, pw: exhalle under winXP: Remote Desktop Connection (All Programs – Accessories – Communications) HV = 150 kV: SEP = 746 The beamline setting is named ALC2005_1st_period.set.
- Page 12 ASCII Data written as (run number NNNN) format: 19 header lines followed by data, lines containing 48 coloumns each !File: /home/l_musr_alc/exp/alc/alc_05_0270.dat !Run : 270 !Start/Stop time: 01:25:32 (30-04-2005) / 06:55:08 (30-04-2005) !Comment: cell 107, 15% DHTAC / 50 mole% ortho-chlorobenzoate, 35C !Field [T]: prescan = 1.5000;...
- Page 13 Appendix: Some ODB entries Ip_min is the minimum required beam currenton Target E in mA. Measurement is paused when the current is lower. rate_min is the minimum required positron rate in the sum of the backward counters (this makes sure that the run is automatically paused when the beamblocker is closed). TestRun = ‘n’...
- Page 14 Ip_channel is the channel number (starting at 0, in the above example this is the third channel) of the proton beam current signal, 100 kHz correspond to 1 mA. preset channels is the bitmask for the scaler channels used for the preset counting register in hex form.
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