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2016/03/23 (Wednesday)

Previous Day

Status: Tower uninstalled and placed in clean room. Clean tent still on opened fridge.
1100 Go into cleanroom, and disassemble tower. Place Pb source in non-purge cabinet for storage until next run. Remove G106a and perform electrical check.
Detector G106A DIB 1
date/who: 2015-03-23 DS NM
+lead - lead signal typical measured
1 2 QET A 100 to 200 Ω 30.0 Ω
3 4 QET B 100 to 200 Ω 90.5 Ω
5 6 QET C 100 to 200 Ω 89.2 Ω
7 8 QET D 100 to 200 Ω 58.0 Ω
9 chassis LED1 Rforward 8 to 9 MΩ 760 kΩ
9 chassis LED1 Vforward 1.0 to 1.1 V 1.040 V
chassis 9 LED1 Rreverse <1 nS <1 nS
10 chassis LED2 Rforward 8 to 9 MΩ 739kΩ
10 chassis LED2 Vforward 1.0 to 1.1 V 1.040 V
chassis 10 LED2 Rreverse <1 nS <1 nS
11 12 Qo-Qi 55.6Ω
12 11 Qi-Qo 53.4Ω
Detector G106A DIB 2
date/who: 2015-03-23 DS NM
+lead - lead signal typical measured
1 2 QET A 100 to 200 Ω 104.4 Ω
3 4 QET B 100 to 200 Ω 30.7 Ω
5 6 QET C 100 to 200 Ω 74.4 Ω
7 8 QET D 100 to 200 Ω 29.7 Ω
9 chassis LED1 Rforward 8 to 9 MΩ 758kΩ
9 chassis LED1 Vforward 1.0 to 1.1 V 1.040V
chassis 9 LED1 Rreverse <1 nS < 1 nS
10 chassis LED2 Rforward 8 to 9 MΩ 728 kΩ
10 chassis LED2 Vforward 1.0 to 1.1 V 1.040V
chassis 10 LED2 Rreverse <1 nS <1 nS
11 12 Qo-Qi 48.5Ω
12 11 Qi-Qo 44.3Ω
Detector G106A DIB 3
date/who: 2015-03-23 DS NM
+lead - lead signal typical measured
1 2 QET A 100 to 200 Ω 94.8 Ω
3 4 QET B 100 to 200 Ω 114.7 Ω
5 6 QET C 100 to 200 Ω 66.5 Ω
7 8 QET D 100 to 200 Ω 61.8 Ω
9 chassis LED1 Rforward 8 to 9 MΩ 13MΩ
9 chassis LED1 Vforward 1.0 to 1.1 V 1.04
chassis 9 LED1 Rreverse <1 nS closed
10 chassis LED2 Rforward 8 to 9 MΩ 135kΩ
10 chassis LED2 Vforward 1.0 to 1.1 V 1.03
chassis 10 LED2 Rreverse <1 nS closed
11 12 Qo-Qi open
12 11 Qi-Qo open
1320 Place G106A in the purge cabinet.
1520 Remove G114 from purge cabinet and commence Detector Electrical Check:
Detector G114 DIB 1
date/who: 2015-03-23 DS NM
+lead - lead signal typical measured
1 2 QET A 100 to 200 Ω open
3 4 QET B 100 to 200 Ω 166.3 Ω
5 6 QET C 100 to 200 Ω 133 Ω
7 8 QET D 100 to 200 Ω 73.4 Ω
9 chassis LED1 Rforward 8 to 9 MΩ open
9 chassis LED1 Vforward 1.0 to 1.1 V open
chassis 9 LED1 Rreverse <1 nS <1 nS
10 chassis LED2 Rforward 8 to 9 MΩ 745kΩ
10 chassis LED2 Vforward 1.0 to 1.1 V 1.040 V
chassis 10 LED2 Rreverse <1 nS <1 nS
11 12 Qo-Qi 87.7Ω
12 11 Qi-Qo 82.8Ω
Detector G114 DIB 2
date/who: 2015-03-23 DS NM
+lead - lead signal typical measured
1 2 QET A 100 to 200 Ω 155 Ω
3 4 QET B 100 to 200 Ω 35.4 Ω
5 6 QET C 100 to 200 Ω 108.3 Ω
7 8 QET D 100 to 200 Ω 35.0 Ω
9 chassis LED1 Rforward 8 to 9 MΩ 744kΩ
9 chassis LED1 Vforward 1.0 to 1.1 V 1.040V
chassis 9 LED1 Rreverse <1 nS < 1 nS
10 chassis LED2 Rforward 8 to 9 MΩ 745 kΩ
10 chassis LED2 Vforward 1.0 to 1.1 V 1.041V
chassis 10 LED2 Rreverse <1 nS <1 nS
11 12 Qo-Qi 212kΩ
12 11 Qi-Qo 2.2MΩ
Detector G114 DIB 3
date/who: 2015-03-23 DS NM
+lead - lead signal typical measured
1 2 QET A 100 to 200 Ω 31.1 Ω
3 4 QET B 100 to 200 Ω 81.2 Ω
5 6 QET C 100 to 200 Ω 30.4 Ω
7 8 QET D 100 to 200 Ω 83.2 Ω
9 chassis LED1 Rforward 8 to 9 MΩ open
9 chassis LED1 Vforward 1.0 to 1.1 V open
chassis 9 LED1 Rreverse <1 nS <0.1 nS
10 chassis LED2 Rforward 8 to 9 MΩ open
10 chassis LED2 Vforward 1.0 to 1.1 V open
chassis 10 LED2 Rreverse <1 nS <0.1nS
11 12 Qo-Qi open
12 11 Qi-Qo open
Note: There are some distinct differences between G114 and G106a from the previous run, both ostensibly iZIPv6:
open phonon channel DIB1 pA (which is Side1 pB) is open, so that's one phonon channel that certainly won't work
fewer LEDs One LED on DIB1 seems to be open and both LEDs on DIB3 are open (maybe no LEDs were ever wired on DIB3). So half the number of LEDs that G106a had.
Ka-Chunk While handling G114, an internal noise was heard as though the crystal inside was moving around and contacting the housing (or at least shifting a bit in its clamps). After opening up the top and bottom plates of the detector, no evidence of movement was found, but we will perform another electrical check to make sure it's still alright post-ka-chunk.
1720 After scrubbing all thermal contact joints, and wiping down w/ methanol (tower-spool, spool spacer rings, spool-source holder, source holder- detector (very light touch w/ sand paper)), assemble tower and place in purge cabinet. Tomorrow we'll attach side coaxes and perform finall tower electric check.

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