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2014/05/30

1130 Put up clean tent.
1700 Uninstall tower.
1800 Disassemble G106a from tower. Assemble G112 with Pb-210 source and Am-241 source mounted above DIB2.
1815 Perform tower level electrical check.
Detector G112 DIB 1
side coax ZB1-4-6 date/who: 2014-05-30 AK & DS
face 2
+lead - lead signal typical measured
1 2 QET A 100 to 200 Ω 221 Ω
2 4 QETA-B 100 to 200 Ω 246 Ω
3 4 QET B 100 to 200 Ω 230 Ω
4 6 QETB-C 100 to 200 Ω 231 Ω
5 6 QET C 100 to 200 Ω 196 Ω
6 8 QETC-D 100 to 200 Ω 217 Ω
7 8 QET D 100 to 200 Ω 159 Ω
2 8 QETA-D 100 to 200 Ω 224 Ω
chassis 9 LED1 Rforward 8 to 9 MΩ 727 kΩ
chassis 9 LED1 Vforward 1.0 to 1.1 V 1.066 V
9 chassis LED1 Rreverse <1 nS <6.0 nS
chassis 10 LED2 Rforward 8 to 9 MΩ 650 kΩ
chassis 10 LED2 Vforward 1.0 to 1.1 V 1.063 V
10 chassis LED2 Rreverse <1 nS closed
1 11 Qo Rbias 24 to 26 nS 25 nS
12 11 Qo C coupling <1 nS <0.2 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 G112 DIB 2
side coax ZB1-4-8 date/who: 2014-05-30 AK & DS
face 5
+lead - lead signal typical measured
1 2 QET A 100 to 200 Ω 187 Ω
2 4 QETA-B 100 to 200 Ω 175 Ω
3 4 QET B 100 to 200 Ω 109 Ω
4 6 QETB-C 100 to 200 Ω 175 Ω
5 6 QET C 100 to 200 Ω 146 Ω
6 8 QETC-D 100 to 200 Ω 162 Ω
7 8 QET D 100 to 200 Ω 107 Ω
2 8 QETA-D 100 to 200 Ω 184 Ω
chassis 9 LED1 Rforward 8 to 9 MΩ 735 kΩ
chassis 9 LED1 Vforward 1.0 to 1.1 V 1.060 V
9 chassis LED1 Rreverse <1 nS <1 nS
chassis 10 LED2 Rforward 8 to 9 MΩ 688 kΩ
chassis 10 LED2 Vforward 1.0 to 1.1 V 1.058 V
10 chassis LED2 Rreverse <1 nS <8 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 <0.6 nS
15 16 Qi Rfeedback 24 to 26 nS 26 nS
Detector G112 DIB 3
side coax ZB4-4 date/who: 2014-05-30 AK & DS
face 6
+lead - lead signal typical measured
1 2 QET A 100 to 200 Ω 178 Ω
2 4 QETA-B 100 to 200 Ω 228 Ω
3 4 QET B 100 to 200 Ω 210 Ω
4 6 QETB-C 100 to 200 Ω 220 Ω
5 6 QET C 100 to 200 Ω 197 Ω
6 8 QETC-D 100 to 200 Ω 205 Ω
7 8 QET D 100 to 200 Ω 148 Ω
2 8 QETA-D 100 to 200 Ω 196 Ω
chassis 9 LED1 Rforward 8 to 9 MΩ open
chassis 9 LED1 Vforward 1.0 to 1.1 V open
9 chassis LED1 Rreverse <1 nS <.1 nS
chassis 10 LED2 Rforward 8 to 9 MΩ open
chassis 10 LED2 Vforward 1.0 to 1.1 V open
10 chassis LED2 Rreverse <1 nS <.1 nS
Nothing unusual found.
1830 Fill LN2 coldtrap full.
1940 Close V5 and V9 to isolate the dump. P1=0.012 mbar, G2= 766 mbar.
1945 Begin pumping on cold traps with He4 pump. Remove LN2 cold traps from dewar.