Detector 9

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(D9 HV history)
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* On June 11 2015 the front fast threshold was raised because the fast rates were high and the livetime was low.  This action was DID reduce the fast rates but did NOT increase the livetime much!  D9 now does not show high fast rates, slow rates, or resets, but yet the livetime is quite low.
* On June 11 2015 the front fast threshold was raised because the fast rates were high and the livetime was low.  This action was DID reduce the fast rates but did NOT increase the livetime much!  D9 now does not show high fast rates, slow rates, or resets, but yet the livetime is quite low.
 +
* On August 20 2015 the front fast threshold was raised in an attempt to gain livetime, which was at ~15%.  This was unsuccessful.
 +
15-232-22:21:09 start idib_chg_thrshld (9, FRONT, FAST, 0x90)
 +
15-232-22:21:38 /IDPUDUMPTABL TABLE=DIBTBL9
 +
15-232-22:21:38 /IDPUTABLE9 OFFSET=FRONTFASTDAC
 +
15-232-22:21:46 /IDPLOAD VALUE=0x90
 +
 +
* On August 20 2015 the rear segment started dumping a huge number of ULD events into the SSR, filling it.  Once the problem was pinpointed, D9 events were disabled entirely on the 21st.  D9 HV was turned down to 900V, and then to 800V, in an attempt to bring down the resets.  This brought resets down from 30k to 23k.  The detector remained segmented.  As of Aug. 22, D9 events are still off.
===D9 front slow LLD threshold history===
===D9 front slow LLD threshold history===
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|-
|-
| 2015-Jul-31 21:42:36 || 0x60 (was 0x50)
| 2015-Jul-31 21:42:36 || 0x60 (was 0x50)
 +
|-
 +
| 2015-Aug-20 22:21:46 || 0x90 (was 0x60)
|-
|-
|}
|}
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|-  
|-  
| 2015-Aug-03 || 2230V (was 2622V)
| 2015-Aug-03 || 2230V (was 2622V)
 +
|-
 +
| 2015-Aug-21 || ~2000V (was 2230V)
 +
|-
 +
| 2015-Aug-21 || ~1800V
 +
|-
 +
| 2015-Aug-21 || ~900V
 +
|-
 +
| 2015-Aug-21 || ~800V
|-
|-
|}
|}

Revision as of 21:51, 22 August 2015

This page contains information about changes/issues for RHESSI detector 9 after the 2014 anneal. Detector updates from 2012-mid 2014 can be found here: Detector 9 anneal 2012

Contents

Notes

Detector 9 is SEGMENTED after the 2014 anneal!

 15-008-17:45:50 /IDPUTABLE9 OFFSET=REARFASTDAC
 15-008-17:46:04 /IDPULOAD VALUE=0x50           ;(was 0x45)
 15-021-23:33:58 /idpudumptabl table=dibtbl9
 15-021-23:34:03 /idputable9 offset=rearfastdac
 15-021-23:34:34 /idpuload value=0x58
 15-021-23:36:47 /idputable9 offset=rearfastdac
 15-021-23:36:55 /idpuload value=0x60
 15-057-18:43:13 /IDPUTABLE9 OFFSET=rearfastDAC
 15-057-18:45:14 /IDPLOAD VALUE=0x68
 15-057-20:21:52 /IDPUTABLE9 OFFSET=REARFASTDAC
 15-057-20:22:09 /IDPLOAD VALUE=0x70
 15-064-19:39:50 /IDPUTABLE9 OFFSET=REARFASTDAC
 15-064-19:40:12 /IDPLOAD VALUE=0x80  ; was 0x70
 2015-070-22:46:04 /IDPUTABLE9 OFFSET=REARFASTDAC
 2015-070-22:46:19 /IDPLOAD VALUE=0x90
 15-072-22:06:18 /IDPUTABLE9 OFFSET=REARFASTDAC
 15-072-22:06:31 /IDPLOAD VALUE=0xA0
 15-075-19:24:13 /IDPUTABLE9 OFFSET=REARFASTDAC
 15-075-19:24:28 /IDPLOAD VALUE=0xB0
 15-077-TBD /IDPUTABLE9 OFFSET=REARFASTDAC
 15-077-TBD /IDPLOAD VALUE=0xC0
15-084-21:07:00 /IDPUTABLE9 OFFSET=REARFASTDAC
15-084-21:07:14 /IDPLOAD VALUE=0xFF
15-084-19:26:07 /ihvdac detector=9, voltage=176
15-084-19:27:17 /ihvdac detector=9, voltage=166
15-084-19:28:33 /ihvdac detector=9, voltage=156
15-084-21:05:17 /ihvdac detector=9, voltage=136 (2622 V)
15-097-19:58:06 /IDPUTABLE9 OFFSET=FRONTFASTDAC
15-097-19:58:14 /IDPLOAD VALUE=0x30 ; was 0x22
15-104-14:09:00 /IDPUTABLE9 OFFSET=FRONTSLOWDAC
15-104-14:09:12 /IDPLOAD VALUE=0x1A
2015-133-19:09:39 /IDPUTABLE9 OFFSET=FRONTFASTDAC
2015-133-19:09:52 /IDPLOAD VALUE=0x40  ; was 0x30
15-232-22:21:09 start idib_chg_thrshld (9, FRONT, FAST, 0x90)
15-232-22:21:38 /IDPUDUMPTABL TABLE=DIBTBL9
15-232-22:21:38 /IDPUTABLE9 OFFSET=FRONTFASTDAC
15-232-22:21:46 /IDPLOAD VALUE=0x90

D9 front slow LLD threshold history

post 2014 anneal 0x0C
2015 Apr 14 14:09:12 0x1A (was 0x0C)

D9 front fast LLD threshold history

post 2014 anneal 0x22
2015-Apr-07 19:58 0x30 (was 0x22)
2015-May-13 19:09:52 0x40 (was 0x30)
2015-Jun-11 20:18:44 0x50 (was 0x40)
2015-Jul-31 21:42:36 0x60 (was 0x50)
2015-Aug-20 22:21:46 0x90 (was 0x60)

D9 rear slow LLD threshold history

post 2014 anneal 0x30

D9 rear fast LLD threshold history

post 2014 anneal 0x45
2015-Jan-08 17:46:04 0x50 (was 0x45)
2015-Jan-22 23:34:34 0x58 (was 0x50)
2015-Jan-22 23:36:55 0x60 (was 0x58)
2015-Feb-27 18:45:14 0x68 (was 0x60)
2015-Feb-27 20:22:09 0x70 (was 0x68)
2015-Mar-05 19:40:12 0x80 (was 0x70)
2015-Mar-11 22:46:19 0x90 (was 0x80)
2015-Mar-13 22:06:31 0xA0 (was 0x90)
2015-Mar-16 19:24:28 0xB0 (was 0xA0)
2015-Mar-18 21:52:57 0xC0 (was 0xB0)
2015-Mar-18 23:32:15 0xD0 (was 0xC0)
2015-Mar-25 21:07:00 0xFF (was 0xD0)

D9 HV history

post 2014 anneal 3995 V
2014-Aug-20 3603V (was 3995V)
2015-Mar-25 2622V (was 3603V)
2015-Aug-03 2230V (was 2622V)
2015-Aug-21 ~2000V (was 2230V)
2015-Aug-21 ~1800V
2015-Aug-21 ~900V
2015-Aug-21 ~800V
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