4 Hodoscope modules supported by hardware.
Suggestion:
- 0: Fiber
- 1: Diamond
- 2: Veto X
- 3: Veto Y
Operating the Fiber Start (Pion Hodoscope)
If anything strange is happening, dont hesitate to call/wake me up.
Office in Giessen: 0641-99-33279
Mobile phone: 0177-4769680
Manual for the Start Expert
Do this all the time
Watch Go4. Compare the pictures to reference pictures.
Go4 Panel is still to be changed.
Do this once per shift
nothing yet
Checklist if something is strange
No signal at all from start
- Is there beam?
- Check HV in Epics
- Check Low Voltage
- Check Meantimer Tresholds
- Check TRB (DAQ should do this)
some channels (<4) are missing
- Check Meantimer Tresholds
a lot of channels (>4) are missing
- Check Meantimer Tresholds
- Check HV
- Check Low Voltage
Meantimer Tresholds cannot be read/set by Epics
- Check if there is the "usual" GSI network problem, if yes, have patience
- Check if Crate is on. This can be done by connecting to the Crate CPU. Do a ping cpuname. If CPU is not responding, Check if the Crate has Power. Use a webbrowser to http://haepc04.gsi.de.
Channel 1 is Low Voltage, Channel 2 is the TRB board. All other channel are
not used. The vme crate can be rebooted directly over network only.
Switching on/off should only be done if start detector is not needed at that time (e.g. no file is written).
--
BjoernSpruck - 12 Apr 2007