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2015/06/01 (Monday)

0930 Remove 30mK can and look upward to inspect for touches of the 600mK rod where it comes through the cold plate. None seen.
1100 Polish contact surfaces with Scotch-Brite: bottom of MC spool, top of 30mK can, bottom of 30mK can.
1200 Replace 30mK can. This was accomplished as a one-man job by inserting two long threaded rods into the MC spool to guide the can as it is raised upward. With one hand holding up the can you can get a few screws started with the other hand. Brass Phillips-head screws torqued to 5 lbf*in.
1500 Tower assembly with Pb-210 source and Am-241 source mounted above DIB2.
Detector is situated on top (furthest from tower) above source holder because 106A's lid cannot be removed. Tower thermometer situated at bottom of source holder.
Polished contact surfaces for tower adapter with Scotch-Brite: bottom of tower 30mK ears, inner surface of adapter, and top surface of adapter.
1540 Perform tower level electrical check.
Detector G106a DIB 1
side coax ZB1-4-4 date/who: 2015-06-01 MF, AK & DS
face 2
+lead - lead signal typical measured
1 2 QET A 100 to 200 Ω 126 Ω
2 4 QETA-B 100 to 200 Ω 179 Ω
3 4 QET B 100 to 200 Ω 179 Ω
4 6 QETB-C 100 to 200 Ω 224 Ω
5 6 QET C 100 to 200 Ω 190 Ω
6 8 QETC-D 100 to 200 Ω 198 Ω
7 8 QET D 100 to 200 Ω 156 Ω
2 8 QETA-D 100 to 200 Ω 173 Ω
9 chassis LED1 Rforward 8 to 9 MΩ 750 kΩ
9 chassis LED1 Vforward 1.0 to 1.1 V 1.089 V
chassis 9 LED1 Rreverse <1 nS <0.7 nS
10 chassis LED2 Rforward 8 to 9 MΩ 730 kΩ
10 chassis LED2 Vforward 1.0 to 1.1 V 1.098 V
chassis 10 LED2 Rreverse <1 nS <1 nS
1 11 Qo Rbias 24 to 26 nS 26 nS
12 11 Qo C coupling <1 nS <0.4 nS
12 13 Qo Rfeedback 24 to 26 nS 26 nS
1 14 Qi Rbias 24 to 26 nS 26 nS
15 14 Qi C coupling <1 nS <0.4 nS
15 16 Qi Rfeedback 24 to 26 nS 26 nS
Detector G106a DIB 2
side coax ZB1-4-6 date/who: 2015-06-01 MF, AK & DS
face 5
+lead - lead signal typical measured
1 2 QET A 100 to 200 Ω 200 Ω
2 4 QETA-B 100 to 200 Ω 202 Ω
3 4 QET B 100 to 200 Ω 124 Ω
4 6 QETB-C 100 to 200 Ω 178 Ω
5 6 QET C 100 to 200 Ω 168 Ω
6 8 QETC-D 100 to 200 Ω 173 Ω
7 8 QET D 100 to 200 Ω 123 Ω
2 8 QETA-D 100 to 200 Ω 209 Ω
9 chassis LED1 Rforward 8 to 9 MΩ 748 kΩ
9 chassis LED1 Vforward 1.0 to 1.1 V 1.089 V
chassis 9 LED1 Rreverse <1 nS <0.3 nS
10 chassis LED2 Rforward 8 to 9 MΩ 717 kΩ
10 chassis LED2 Vforward 1.0 to 1.1 V 1.089 V
chassis 10 LED2 Rreverse <1 nS <1 nS
1 11 Qo Rbias 24 to 26 nS 26 nS
12 11 Qo C coupling <1 nS <0.4 nS
12 13 Qo Rfeedback 24 to 26 nS 26 nS
1 14 Qi Rbias 24 to 26 nS 25 nS
15 14 Qi C coupling <1 nS <0.3 nS
15 16 Qi Rfeedback 24 to 26 nS 26 nS
Detector G106a DIB 3
side coax ZB1-4-8 date/who: 2015-06-01 MF, AK & DS
face 6
+lead - lead signal typical measured
1 2 QET A 100 to 200 Ω 179 Ω
2 4 QETA-B 100 to 200 Ω 207 Ω
3 4 QET B 100 to 200 Ω 202 Ω
4 6 QETB-C 100 to 200 Ω 186 Ω
5 6 QET C 100 to 200 Ω 161 Ω
6 8 QETC-D 100 to 200 Ω 163 Ω
7 8 QET D 100 to 200 Ω 148 Ω
2 8 QETA-D 100 to 200 Ω 205 Ω
9 chassis LED1 Rforward 8 to 9 MΩ 744 kΩ
9 chassis LED1 Vforward 1.0 to 1.1 V 1.085 V
chassis 9 LED1 Rreverse <1 nS <9 nS
10 chassis LED2 Rforward 8 to 9 MΩ 480±50 kΩ
10 chassis LED2 Vforward 1.0 to 1.1 V 1.085 V
chassis 10 LED2 Rreverse <1 nS closed