From RHESSI Wiki
This page contains information about changes/issues for RHESSI detector 1 after the 2014 anneal. Detector 1 updates from 2012-mid 2014 can be found here: Detector 1 anneal 2012
Notes
Detector 1 is SEGMENTED following the 2014 anneal (yay!)
- The rear fast threshold was changed on July 13 2015 due to dropping livetime in the rear:
2015-194-16:33:58 /IDPUTABLE1 OFFSET=REARFASTDAC
2015-194-16:34:12 /IDPLOAD VALUE=0x50 ; was 0x45
- The rear fast threshold was changed on July 24 2015 due to low livetime. However, the change probably wasn't needed; the tohban hadn't noticed that a change had already been made a few days ago. The next tohban can reverse the change if desired.
2015-205-17:18:59 /IDPUTABLE1 OFFSET=REARFASTDAC
2015-205-17:19:08 /IDPLOAD VALUE=0x70 ; was 0x60
- The rear fast threshold was changed on Sep 9 2015 due to low livetime.
2015-252-17:51:10 /IDPUTABLE1 OFFSET=REARFASTDAC
2015-252-17:51:17 /IDPLOAD VALUE=0x80 ; was 0x70
- On October 8, the rear fast threshold was raised to try and raise livetime. Results still need to be assessed.
2015-281-21:50:13 /IDPUTABLE1 OFFSET=REARFASTDAC
2015-281-21:50:24 /IDPLOAD VALUE=0xA0 ; was 0x90
D1 front slow LLD threshold history
D1 front fast LLD threshold history
post 2014 anneal | 0x22
|
2015-May-12 21:01:12 | 0x30 (was 0x22)
|
2015-May-12 21:10:35 | 0x40 (was 0x30)
|
D1 rear slow LLD threshold history
D1 rear fast LLD threshold history
post 2014 anneal | 0x45
|
2015-Jul-13 16:34:12 | 0x50 (was 0x45)
|
2015-Jul-24 17:19:08 | 0x70 (was 0x60)
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2015-Sep-9 17:51:17 | 0x80 (was 0x70)
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2015-Sep-17 06:36:06 | 0x90 (was 0x80)
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2015-Oct-08 21:50:24 | 0xA0 (was 0x90)
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D1 HV history