Detector 6

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  15-099-21:17:27 /IDPLOAD VALUE=0x15
  15-099-21:17:27 /IDPLOAD VALUE=0x15
-
* On Abril 14 starting at 14:06 UT we made the next changes for detectors 6 trying to decrease valid counts on the Slow Front segment.
+
* On April 14 starting at 14:06 UT we made the next changes for detectors 6 trying to decrease valid counts on the Slow Front segment.
  15-104-14:11:57 /IDPUTABLE6 OFFSET=FRONTFASTDAC
  15-104-14:11:57 /IDPUTABLE6 OFFSET=FRONTFASTDAC
Line 215: Line 215:
2017-039-20:11:21 /IDPULOAD VALUE=0x80 ; was 0x70
2017-039-20:11:21 /IDPULOAD VALUE=0x80 ; was 0x70
 +
* On 21-Feb-2017, front fast threshold was raised from 0x80 to 0x90
 +
 +
17-052-17:21:46 start idib_chg_thrshld(6,FRONT,FAST,0x90) ; was 0x80
 +
17-052-17:22:22 start show_temps_avg
 +
17-052-17:22:40 CP1: 152.6 K
 +
17-052-17:22:40 CP2: 151.2 K
 +
17-052-17:22:40 CT1: 127.9 K
 +
17-052-17:22:40 CT2: 126.1 K
 +
17-052-17:22:40 TST: 189.0 K
 +
17-052-17:22:40 cp1 - ct1 = 24.61 K
 +
17-052-17:22:40 Cryo Power: 75.4 W
 +
17-052-17:22:40 Cryo Accel: 12.1 mG
 +
 +
* On May 15 at 17:50 we lowered the HV from ~3400V to ~2000 V as an experiment to increase the Livetime. The experiment worked well.
 +
 +
2017-135-17:50:10 /ihvdac detector=6, voltage=103 ; 2000 V
 +
 +
* 16 August 2017, raised front slow threshold to reduce low energy noise
 +
17-228-19:57:37 start idib_chg_thrshld(6,FRONT,SLOW,0x1C)
 +
17-228-19:57:41 /IDPUDUMPTABL TABLE=DIBTBL6
 +
17-228-19:57:41 /IDPUTABLE6 OFFSET=FRONTSLOWDAC
 +
17-228-19:57:48 /IDPULOAD VALUE=0x1C
 +
 +
* On 27-sep-2017, the front fast rate threshold for detector 6 was lowered to 0x20, in an attempt to set the threshold to such a low value that individual fast rate counts would not be distinguished, thus reducing the fast rates and increasing live time. This was not successful, and the threshold was raised back to 0xFF.
 +
 +
Here are the command times (UTC):
 +
 +
2017-270-19:33:14 /IDPUTABLE6 OFFSET=FRONTFASTDAC
 +
2017-270-19:33:24 /IDPULOAD VALUE=0x80 ; was 0xFF
 +
 +
2017-270-19:34:03 /IDPUTABLE6 OFFSET=FRONTFASTDAC
 +
2017-270-19:34:08 /IDPULOAD VALUE=0x40
 +
 +
2017-270-19:34:45 /IDPUTABLE6 OFFSET=FRONTFASTDAC
 +
2017-270-19:34:50 /IDPULOAD VALUE=0x30
 +
 +
2017-270-19:35:30 /IDPUTABLE6 OFFSET=FRONTFASTDAC
 +
2017-270-19:35:35 /IDPULOAD VALUE=0x20
 +
 +
2017-270-19:36:21 /IDPUTABLE6 OFFSET=FRONTFASTDAC
 +
2017-270-19:36:29 /IDPULOAD VALUE=0x10
 +
 +
2017-270-19:37:30 /IDPUTABLE6 OFFSET=FRONTFASTDAC
 +
2017-270-19:37:35 /IDPULOAD VALUE=0x00
 +
 +
2017-270-19:38:14 /IDPUTABLE6 OFFSET=FRONTFASTDAC
 +
2017-270-19:38:18 /IDPULOAD VALUE=0xFF
 +
 +
* 3 November 2017: Rear fast threshold raised to 0xFF
 +
 +
17-307-16:32:54 start idib_chg_thrshld(6,rear,fast,0xFF) , was 0x60
 +
17-307-16:32:58 /IDPUDUMPTABL TABLE=DIBTBL6
 +
17-307-16:32:58 /IDPUTABLE6 OFFSET=REARFASTDAC
 +
17-307-16:33:08 /IDPULOAD VALUE=0xFF
Line 253: Line 307:
|-
|-
| post 2016 anneal || 0x68
| post 2016 anneal || 0x68
 +
|-
 +
| 2017-08-16 19:57:48 || 0x1C
|}
|}
-
 
===D6 front fast LLD threshold history===
===D6 front fast LLD threshold history===
Line 298: Line 353:
|-
|-
| 2017-Feb-08 20:11:21 || 0x80 (was 0x70)
| 2017-Feb-08 20:11:21 || 0x80 (was 0x70)
 +
|-
 +
| 2017-Feb-21 17:22:22 || 0x90 (was 0x80)
 +
|-
 +
| 2017-Feb-28 20:49:32 || 0xB0 (was 0x90)
 +
|-
 +
| 2017-Mar-01  || 0xFF
|}
|}
-
 
===D6 rear slow LLD threshold history===
===D6 rear slow LLD threshold history===
Line 339: Line 399:
|-  
|-  
| post 2016 anneal || 0x45
| post 2016 anneal || 0x45
 +
|-
 +
| 2017-Jan-27 || 0x60
 +
|-
 +
| 2017-Nov-03 16:32:54 || 0xFF (was 0x60)
|}
|}
Line 369: Line 433:
|-
|-
| post 2016 anneal || 0V
| post 2016 anneal || 0V
-
 
+
|-
 +
| 2016-Mar-01 12:37:00 UTC || 3480 V
 +
|-
 +
| 2017-May-15 17:50:10 UTC || 2000 V (was 3400 V)
 +
|-
|}
|}

Latest revision as of 18:41, 8 November 2017

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
2015-194-16:34:40 /IDPUTABLE6 OFFSET=REARFASTDAC
2015-194-16:34:52 /IDPLOAD VALUE=0x80 ; was 0x70
2015-205-17:19:29 /IDPUTABLE6 OFFSET=REARFASTDAC
2015-205-17:19:45 /IDPLOAD VALUE=0xB0 ; was 0xA0
2015-236-20:44:59 /IDPUTABLE6 OFFSET=FRONTFASTDAC
2015-236-20:45:10 /IDPLOAD VALUE=0xD0  ; was 0xB0
2015-237-00:02:53 /IDPUTABLE6 OFFSET=FRONTSLOWDAC
2015-237-00:03:04 /IDPLOAD VALUE=0x25 ;  was 0x20
2015-236-20:47:27 /IDPUTABLE6 OFFSET=REARFASTDAC
2015-236-20:47:36 /IDPLOAD VALUE=0xC0 ; was 0xB0
2015-237-00:04:26 /IDPUTABLE6 OFFSET=REARFASTDAC
2015-237-00:04:34 /IDPLOAD VALUE=0xD0 ; was 0xC0
2015-240-17:32:26 /ihvdac detector=6, voltage=93 (from 1984 to 1789 V)
2015-243-18:01:47 /IDPUTABLE6 OFFSET=REARFASTDAC
2015-243-18:01:56 /IDPLOAD VALUE=0xE0 ; was 0xD0 
2015-252-17:53:05 /IDPUTABLE6 OFFSET=REARFASTDAC
2015-252-17:53:18 /IDPLOAD VALUE=0xF0 ; was 0xF0
2015-257-17:35:39 /IDPUTABLE6 OFFSET=REARFASTDAC
2015-257-17:35:49 /IDPLOAD VALUE=0xFF ; was 0xF0
2015-258-17:09:29 /IDPUTABLE6 OFFSET=frontslowDAC
2015-258-17:09:38 /IDPLOAD VALUE=0x30 ; was 0x25
15-278-21:29:49 start idib_chg_thrshld(6, FRONT, SLOW, 0x40)  ; was 0x30
15-278-21:29:53 /IDPUDUMPTABL TABLE=DIBTBL6
15-278-21:29:53 /IDPUTABLE6 OFFSET=FRONTSLOWDAC
15-278-21:30:03 /IDPLOAD VALUE=0x40
15-279-00:40:54 start idib_chg_thrshld (6, FRONT, SLOW, 0x50)  ; was 0x40
15-279-00:40:58 /IDPUDUMPTABL TABLE=DIBTBL6
15-279-00:40:58 /IDPUTABLE6 OFFSET=FRONTSLOWDAC
15-279-00:41:08 /IDPLOAD VALUE=0x50
2015-281-21:49:49 /IDPUTABLE6 OFFSET=FRONTFASTDAC
2015-281-21:49:59 /IDPLOAD VALUE=0xFF  ; was 0xE0
2015-285-21:52:42 /IHVDAC DETECTOR=6, VOLTAGE=83  ;1593 V (was 1789 V)
 2015-301-20:28:46 /ihvdac detector=6, voltage=73

relatively flat at those values, and we shouldn't experience too much additional noise counts.

2015-318-07:03:56 /IDPUTABLE6 OFFSET=FRONTSLOWDAC
2015-318-07:04:07 /IDPLOAD VALUE=0x40  ; was 0x50
2015-344-19:58:19 /IDPUTABLE6 OFFSET=FRONTSLOWDAC
2015-344-19:58:28 /IDPLOAD VALUE=0x30 ; was 0x40
2015-346-00:33:12 /IDPUTABLE6 OFFSET=FRONTSLOWDAC
2015-346-00:33:22 /IDPLOAD VALUE=0x20  ; was 0x30
2016-008-01:32:23 /IDPUTABLE6 OFFSET=FRONTSLOWDAC
2016-008-01:32:32 /IDPLOAD VALUE=0x80  ; was 0x30
2016-013-23:02:09 /ihvdac detector=6, voltage=28 ; 500 V
2016-015-01:41:44 /ihvdac detector=6, voltage=11
2016-015-23:40:07 /ITMOFF VALUE=DIB6 ; off permanently
2016-015-23:40:25 /IHVDAC DETECTOR=6, VOLTAGE=28 ; 500 V

Post 2016 anneal

2017-039-20:11:12 /IDPUTABLE6 OFFSET=FRONTFASTDAC 2017-039-20:11:21 /IDPULOAD VALUE=0x80 ; was 0x70

17-052-17:21:46 start idib_chg_thrshld(6,FRONT,FAST,0x90) ; was 0x80
17-052-17:22:22 start show_temps_avg
17-052-17:22:40 CP1: 152.6 K
17-052-17:22:40 CP2: 151.2 K
17-052-17:22:40 CT1: 127.9 K
17-052-17:22:40 CT2: 126.1 K
17-052-17:22:40 TST: 189.0 K
17-052-17:22:40 cp1 - ct1 = 24.61 K
17-052-17:22:40 Cryo Power: 75.4 W
17-052-17:22:40 Cryo Accel: 12.1 mG
2017-135-17:50:10 /ihvdac detector=6, voltage=103 ; 2000 V
17-228-19:57:37 start idib_chg_thrshld(6,FRONT,SLOW,0x1C)
17-228-19:57:41 /IDPUDUMPTABL TABLE=DIBTBL6
17-228-19:57:41 /IDPUTABLE6 OFFSET=FRONTSLOWDAC
17-228-19:57:48 /IDPULOAD VALUE=0x1C

Here are the command times (UTC):

2017-270-19:33:14 /IDPUTABLE6 OFFSET=FRONTFASTDAC
2017-270-19:33:24 /IDPULOAD VALUE=0x80 ; was 0xFF
2017-270-19:34:03 /IDPUTABLE6 OFFSET=FRONTFASTDAC
2017-270-19:34:08 /IDPULOAD VALUE=0x40
2017-270-19:34:45 /IDPUTABLE6 OFFSET=FRONTFASTDAC
2017-270-19:34:50 /IDPULOAD VALUE=0x30
2017-270-19:35:30 /IDPUTABLE6 OFFSET=FRONTFASTDAC
2017-270-19:35:35 /IDPULOAD VALUE=0x20
2017-270-19:36:21 /IDPUTABLE6 OFFSET=FRONTFASTDAC
2017-270-19:36:29 /IDPULOAD VALUE=0x10
2017-270-19:37:30 /IDPUTABLE6 OFFSET=FRONTFASTDAC
2017-270-19:37:35 /IDPULOAD VALUE=0x00
2017-270-19:38:14 /IDPUTABLE6 OFFSET=FRONTFASTDAC
2017-270-19:38:18 /IDPULOAD VALUE=0xFF
17-307-16:32:54 start idib_chg_thrshld(6,rear,fast,0xFF) , was 0x60
17-307-16:32:58 /IDPUDUMPTABL TABLE=DIBTBL6
17-307-16:32:58 /IDPUTABLE6 OFFSET=REARFASTDAC
17-307-16:33:08 /IDPULOAD VALUE=0xFF


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)
2015 Aug 25 00:03:04 UTC 0x25 (was 0x20)
2015 Sep 15 00:17:09 UTC 0x30 (was 0x25)
2015 Oct 02 21:29:49 UTC 0x40 (was 0x30)
2015 Oct 05 00:40:54 UTC 0x50 (was 0x40)
2015-11-14 07:04:07 UTC 0x40 (was 0x50)
2015-12-10 19:58:19 UTC 0x30 (was 0x40)
2015-12-12 00:33:22 UTC 0x20 (was 0x30)
2016-01-08 01:32:32 UTC 0x80 (was 0x30)
post 2016 anneal 0x68
2017-08-16 19:57:48 0x1C

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)
2015-Aug-24 20:45:10 0xD0 (was 0xB0)
2015-Sep-21 19:47:33 0xE0 (was 0xD0)
2015-Oct-08 21:49:59 0xFF (was 0xE0)
post 2016 anneal 0x40
2017-Feb-08 20:11:21 0x80 (was 0x70)
2017-Feb-21 17:22:22 0x90 (was 0x80)
2017-Feb-28 20:49:32 0xB0 (was 0x90)
2017-Mar-01 0xFF

D6 rear slow LLD threshold history

post 2014 anneal 0x30 (after segmentation)
post 2016 anneal 0x30

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)
2015-Jul-13 16:34:52 0x80 (was 0x70)
2015-Jul-29 17:19:45 0xB0 (was 0xA0)
2015-Aug-24 20:47:36 0xC0 (was 0xB0)
2015-Aug-25 00:04:34 0xD0 (was 0xC0)
2015-Aug-31 18:01:56 0xE0 (was 0xD0)
2015-Sep-09 17:53:18 0xF0 (was 0xE0)
2015-Sep-14 17:35:49 0xFF (was 0xF0)
post 2016 anneal 0x45
2017-Jan-27 0x60
2017-Nov-03 16:32:54 0xFF (was 0x60)

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)
2015-Aug-28 17:32 UTC 1789 V (was 1985 V)
2015-Oct-12 21:52:42 UTC 1593 V (was 1789 V)
2015-Oct-28 20:28:46 UTC 1397 V (was 1593 V)
2016-Jan-13 23:02:09 UTC 500 V (was 1000 V)
2016-Jan-15 01:41:44 UTC 200 V (was 500 V)
2016-Jan-15 23:40:25 UTC 500 V (was 200 V)
post 2016 anneal 0V
2016-Mar-01 12:37:00 UTC 3480 V
2017-May-15 17:50:10 UTC 2000 V (was 3400 V)
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