Revision as of 18:16, 2 April 2008

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.