BigBite/HVControl
From Hall A Wiki
Contents
BigBite High Voltage Control
HOWTO start the HV Control GUI
- Log into the adev account on adaql2 (password on sheet next to the WhiteBoard).
For example, in an xterm (logged in as adaq@adaql1):
[adaq@adaql1 adaq]$ ssh adev@adaql2
- Run the GUI:
[adev@adaql2 adev]$ hvgui
- After some time of reading configuration files and information from the HV Crates (about 30 seconds), the GUI should appear:
HOWTO change high voltage
- double click the slot you want to change in Target_V column
- change the value then hit enter
- after finish changing please save the setting
HOWTO save high voltage setting
- click File
- choose Save Voltage Set
- please save the file in the format as you see in the example
BB_month_date_year_time.set
== HV map for BB
- bbps1 S0 to S9 are E and DE BB planes
- S0 de 1-12 Left S1 de 13-24 Left S2 de 1-12 Right S3 de 13-24 Right
- S4 E 1-12 Left S5 E 13-24 Left S6 E 1-12 Right S7 E 13-24 Right
- S8 Bar in front of platform
- bbps1 S14 Bigbite MWDC HV
- 0 to 3 front chambers
- 4 to 8 back chambers
Channels for the MWDC
The Channels for the MWDC are in Slot 14.
- Front Chamber = 14.0 through 14.3
- Back Chamber = 14.4 through 14.7
IF A CHAMBER HV TRIPS
If a single channel (or more) on one of the chambers trips. Bring the set of four down together, before resetting the HV. THIS IS VERY IMPORTANT.