CEA Compton /OSP /How to / T. Pussieux
 
 
Procedure 6
 
How to set the High Voltage on the Photon detector PMT ?  

The cards of the COMPTON Polarimeter PMT HV are located in crate #2
telnet hatsv5 2011, login:adaq, paswd:ask people on shift
then 1450, vt100 and usual display.

High Voltage channel for the Compton polarimeter are in cards # 12, 13, 14 and 15.
Typical HV for Beam Diag and Cristal PMTs is 1500 V. The voltage of the monitoring
LED (channel 15.10) should stay in the range 110-130 V.

NB: Only one user can connect on hatsv5 at the same time!! If you can't connect
check if others are logged in. See also procedure posted in rack #CH01B05.

Address HT Detector
12.0 PMT Cristal 1
12.1 PMT Cristal 2
12.2 PMT Cristal 3
12.3 PMT Cristal 4
12.4 PMT Cristal 5
12.5 PMT Cristal 6
12.6  PMT Cristal 7
12.7 PMT Cristal  8
12.8 PMT Cristal  9
12.9 PMT Cristal 10
12.10 PMT Cristal 11
12.11 PMT Cristal 12
Address HT Detector
13.0 PMT Cristal 13
13.1 PMT Cristal 14
13.2 PMT Cristal 15
13.3 PMT Cristal 16
13.4 PMT Cristal 17
13.5 PMT Cristal 18
13.6  PMT Cristal 19
13.7 PMT Cristal  20
13.8 PMT Cristal  21
13.9 PMT Cristal 22
13.10 PMT Cristal 23
13.11 PMT Cristal 24
Address HT Detector
14.0 PMT Beam Diagnostic 1A
14.1 PMT Beam Diagnostic 1B
14.2 PMT Beam Diagnostic 1C
14.3 PMT Beam Diagnostic 1D
14.4 PMT Beam Diagnostic 2A
145. PMT Beam Diagnostic 2B
14.6  PMT Beam Diagnostic 2C
14.7 PMT Beam Diagnostic 2D
14.8 PMT Beam Diagnostic 3A
14.9 PMT Beam Diagnostic 3B
14.10 PMT Beam Diagnostic 3C
14.11 PMT Beam Diagnostic 3D
Address HT Detector
15.0 PMT Cristal 25
15.1 PMT No Cristal 26
15.2 PMT No Cristal 27
15.3 TBD
15.4 PMT Beam Diagnostic 4A
15.5 PMT Beam Diagnostic 4B
15.6  PMT Beam Diagnostic 4C
15.7 TBD
15.8 TBD
15.9 TBD
15.10 LED (Mouly box) Power Supply
15.11 PMT Beam Diagnostic 4D
The reference values for the beam diagnostics are
Cable Number Scaler Number Adresse HT HT
11 1 14.0 1300
12 2 14.1 1275
13 3 14.2 1200
14 4 14.3 1250
21 5 14.4 1200
22 6 14.5 1150
23 7 14.6 1200
24 8 14.7 1350
31 9 14.8 1200
32 10 14.9 1250
33 11 14.10 1250
34 12 14.11 1350
41 13 15.4 1200
42 14 15.5 1225
43 15 15.6 1350
44 16 15.11 1400
Compton Polarimeter last updated : 06/11/2004
Procedure 6 CEA 1995 - all rights reserved