Detector 6

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  2015-146-19:13:25 /IDPLOAD VALUE=0x68 ; was 0x60
  2015-146-19:13:25 /IDPLOAD VALUE=0x68 ; was 0x60
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* On 2015 July 7, D6 rear fast threshold was raised
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* On 2015 July 7, D6 rear fast threshold was raised due to decreased livetime
  2015-188-18:49:02 /IDPUTABLE6 OFFSET=REARFASTDAC
  2015-188-18:49:02 /IDPUTABLE6 OFFSET=REARFASTDAC

Revision as of 19:12, 8 July 2015

This page contains information about changes/issues for RHESSI detector 6 after the 2014 anneal. Detector updates from 2012-mid 2014 can be found here: Detector 6 anneal 2012

Contents

Notes

After the 2014 anneal, detector 6 began its reincarnated life as an unsegmented detector but segmented shortly after (see below).


 15-008-17:44:55 /IDPUTABLE6 OFFSET=REARFASTDAC
 15-008-17:45:18 /IDPULOAD VALUE=0x50           ;(was 0x45)
 15-026-21:57:13 / D6 front slow threshold to 0x30 (was 0x0C).
 15-027-21:37:03 / D6 front slow threshold to 0x0C (was 0x30).


 15-030-00:19:54 /IDPUTABLE6 OFFSET=FRONTFASTDAC
 15-030-00:20:17 /IDPLOAD VALUE=0x30   ; was 0x22
15-058-21:41:11 /IDPUTABLE6 OFFSET=FRONTFASTDAC
15-058-21:41:44 /IDPLOAD VALUE=0x40 (was 0x30)
 15-068-01:26:56 /IDPUTABLE6 OFFSET=FRONTFASTDAC
 15-068-01:27:07 /IDPLOAD VALUE=0x50
 15-072-22:04:01 /IDPUTABLE6 OFFSET=FRONTFASTDAC
 15-072-22:04:22 /IDPLOAD VALUE=0x60
 
 15-072-22:05:07 /IDPUTABLE6 OFFSET=REARFASTDAC
 15-072-22:05:17 /IDPLOAD VALUE=0x60
 15-076-20:44:01 /IDPUTABLE6 OFFSET=FRONTFASTDAC
 15-076-20:44:14 /IDPLOAD VALUE=0x70

On 2015 March 20 D6 HV was dropped in two 10 step increments, twice. Also we attempted to lower the front fast threshold to 0x50, but changed this almost immediately when the live time dropped to 3%:

 15-079-21:10:49 /IHVDAC DETECTOR=6, VOLTAGE=243
 15-079-21:12:47 /IHVDAC DETECTOR=6, VOLTAGE=233
 15-079-22:49:23 /ihvdac detector=6, voltage=223
 15-079-22:50:44 /ihvdac detector=6, voltage=213
 15-079-22:52:39 /IDPUTABLE6 OFFSET=FRONTFASTDAC
 15-079-22:52:58 /IDPLOAD VALUE=0x60
 15-079-22:55:07 /IDPUTABLE6 OFFSET=FRONTFASTDAC
 15-079-22:55:19 /IDPLOAD VALUE=0x50
 15-079-22:55:53 /IDPUTABLE6 OFFSET=FRONTFASTDAC
 15-079-22:56:01 /IDPLOAD VALUE=0x70

On 2015 March 25 D6 HV was dropped in 20 steps.

15-084-22:45:15 /ihvdac detector=6, voltage=203
15-084-22:46:45 /ihvdac detector=6, voltage=193 (3750 V)
15-097-19:56:35 /IDPUTABLE6 OFFSET=FRONTFASTDAC
15-097-19:56:45 /IDPLOAD VALUE=0x80 ; was 0x70
15-099-17:32:59 /IDPUTABLE6 OFFSET=FRONTFASTDAC
15-099-17:33:11 /IDPLOAD VALUE=0xA0
15-099-21:17:16 /IDPUTABLE6 OFFSET=FRONTSLOWDAC
15-099-21:17:27 /IDPLOAD VALUE=0x15
15-104-14:11:57 /IDPUTABLE6 OFFSET=FRONTFASTDAC
15-104-14:12:05 /IDPLOAD VALUE=0xA8
15-104-15:45:14 /IDPLOAD VALUE=0xB0
15-104-15:46:24 /IDPLOAD VALUE=0xB8
15-104-15:47:36 /IDPLOAD VALUE=0xB0
15-104-15:49:18 /IDPUTABLE6 OFFSET=FRONTSLOWDAC
15-104-15:49:25 /IDPLOAD VALUE=0x1A
15-104-15:50:30 /IDPLOAD VALUE=0x1F
15-104-15:52:06 /IDPLOAD VALUE=0x15
15-141-19:25:36 start idib_chg_thrshld (6, FRONT, SLOW, 0x20)  --> Was 0x15
15-141-19:25:46 /IDPUDUMPTABL TABLE=DIBTBL6
15-141-19:25:47 /IDPUTABLE6 OFFSET=FRONTSLOWDAC
15-141-19:25:55 /IDPLOAD VALUE=0x20
2015-146-19:11:11 /IHVDAC DETECTOR=6, VOLTAGE=103 (1985 V)

We also increased the rear fast threshold on detector 6 by 0x08

2015-146-19:13:07 /IDPUTABLE6 OFFSET=REARFASTDAC
2015-146-19:13:25 /IDPLOAD VALUE=0x68 ; was 0x60
2015-188-18:49:02 /IDPUTABLE6 OFFSET=REARFASTDAC
2015-188-18:49:19 /IDPLOAD VALUE=0x70  ; was 0x68

D6 front slow LLD threshold history

post 2014 anneal 0x0C (after segmentation)
2015 Jan 26 21:57:13 UTC 0x30 (was 0x0C)
2015 Jan 27 21:37:03 UTC 0x0C (was 0x30)
2015 Apr 09 21:17:27 UTC 0x15 (was 0x0C)
2015 Apr 14 15:49:25 UTC 0x1A (was 0x15)
2015 Apr 14 15:50:30 UTC 0x1F (was 0x1A)
2015 Apr 14 15:52:06 UTC 0x15 (was 0x1F)
2015 May 21 19:25:36 UTC 0x20 (was 0x15)

D6 front fast LLD threshold history

post 2014 anneal 0x22 (after segmentation)
2015-Jan-30 00:20:17 0x30 (was 0x22)
2015-Feb-27 21:41:44 0x40 (was 0x30)
2015-Mar-09 01:27:07 0x50 (was 0x40)
2015-Mar-13 22:04:22 0x60 (was 0x50)
2015-Mar-17 20:44:14 0x70 (was 0x60)
2015-Mar-20 22:52:58 0x60 (was 0x70)
2015-Mar-20 22:55:19 0x50 (was 0x60)
2015-Mar-20 22:56:01 0x70 (was 0x50)
2015-Apr-07 19:57 0x80 (was 0x70)
2015-Apr-09 17:33 0xA0 (was 0x90)
2015-Apr-14 14:12 0xA8 (was 0xA0)
2015-Apr-14 15:45 0xB0 (was 0xA8)
2015-Apr-14 15:46 0xB8 (was 0xB0)
2015-Apr-14 15:48 0xB0 (was 0xB8)

D6 rear slow LLD threshold history

post 2014 anneal 0x30 (after segmentation)

D6 rear fast LLD threshold history

post 2014 anneal 0x45 (after segmentation)
2015-Jan-08 17:45:18 0x50 (was 0x45)
2015-Jan-08 17:45:18 0x50 (was 0x45)
2015-Mar-17 22:05:17 0x60 (was 0x50)
2015-May-26 19:13:07 0x68 (was 0x60)
2015-Jul-07 18:49:19 0x70 (was 0x68)

D6 HV history

post 2014 anneal 4510 V (unsegmented)
2014-Aug-14 03:40 UTC 4926 V (was 4510 V) (segmented)
2015-Mar-20 21:12 UTC 4500 V (was 4926 V)
2015-Mar-20 22:50 UTC 4142 V (was 4500 V)
2015-Mar-25 22:47 UTC 3750 V (was 4142 V)
2015-May-26 19:11 UTC 1985 V (was 2573 V)
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