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2019/10/22 (Tuesday)

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Status: Tower broken, replacing with original UMN TF tower. 2nd attempt at Run 71 cooldown.
1300 Inspecting UMN TF tower after receiving it back from TAMU.
UMN TF Tower Date: 10/22/2019
Face Condition
1 1-4 ok, 5-10 open, 11-16 ok
2 all ok
3 all ok
4 all ok
5 all ok
6 5 missing bottom socket, rest ok
1325 Slot cut in PCB on face 4. TAMU says they cut it to feed some HV wires through.
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1410 Transplant Detector stack and spool to UMN TF tower. Align DIB1 with face 5.
Attach motor wiring harness to face 6, pins 10-16, with brown wire on pin 10.
1425 Installing ST-3-10 on face 2, but the tower mounting screw holes are stripped, so don't use any screws on this side coax.
1430 Tower electrical check.
Detector G106a DIB 1
side coax ST-3-3 date/who: 2019 Oct 22 NM, ZW
face 5
+lead - lead signal typical previous measured
1 2 QET A 100 to 200 Ω 131Ω 126 Ω
2 4 QETA-B 100 to 200 Ω 184Ω 202 Ω
3 4 QET B 100 to 200 Ω 183Ω 187 Ω
4 6 QETB-C 100 to 200 Ω 226Ω 202 Ω
5 6 QET C 100 to 200 Ω 192Ω 188 Ω
6 8 QETC-D 100 to 200 Ω 194Ω 141 Ω
7 8 QET D 100 to 200 Ω 146Ω 142 Ω
2 8 QETA-D 100 to 200 Ω 173Ω 172 Ω
chassis 9 LED1 Rforward 8 to 9 MΩ 761kΩ 757 kΩ
chassis 9 LED1 Vforward 1.0 to 1.1 V 1.106V 1.10 V
9 chassis LED1 Rreverse <1 nS <0.1nS <0.1 nS
chassis 10 LED2 Vforward 8 to 9 MΩ open open
chassis 10 LED2 Vforward 1.0 to 1.1 V open open
10 chassis LED2 Rreverse <1 nS <0.1nS 0.1 nS
1 11 Qo Rbias 24 to 26 nS 25.4nS 25 nS
12 11 Qo C coupling <1 nS <0.2nS <0.1 nS
12 13 Qo Rfeedback 24 to 26 nS 25.5nS 25 nS
1 14 Qi Rbias 24 to 26 nS 25.3nS 25 nS
15 14 Qi C coupling <1 nS <0.1nS 0.1 nS
15 16 Qi Rfeedback 24 to 26 nS 25.4nS 25 nS
All pins → Ground all <0.2 nS
Detector G106a DIB 2
side coax ST-3-10 date/who: 2019 Oct 22 NM, ZW
face 2
+lead - lead signal typical previous measured
1 2 QET A 100 to 200 Ω 135 Ω 207 Ω
2 4 QETA-B 100 to 200 Ω 193 Ω 191 Ω
3 4 QET B 100 to 200 Ω 180 Ω 133 Ω
4 6 QETB-C 100 to 200 Ω 184 Ω 191 Ω
5 6 QET C 100 to 200 Ω 134 Ω 178 Ω
6 8 QETC-D 100 to 200 Ω 184 Ω 183 Ω
7 8 QET D 100 to 200 Ω 134 Ω 133 Ω
2 8 QETA-D 100 to 200 Ω 204 Ω 201 Ω
chassis 9 LED1 Rforward 8 to 9 MΩ 760 kΩ .756 MΩ
chassis 9 LED1 Vforward 1.0 to 1.1 V 1.11 V 1.1 V
9 chassis LED1 Rreverse <1 nS <0.1 nS <0.1 nS
chassis 10 LED2 Rforward 8 to 9 MΩ 729 kΩ .726 MΩ
chassis 10 LED2 Vforward 1.0 to 1.1 V 1.11 V 1.1 V
10 chassis LED2 Rreverse <1 nS 3 nS <0.1 nS
1 11 Qo Rbias 24 to 26 nS 26.2 nS 26 nS
12 11 Qo C coupling <1 nS <0.2 nS <0.1 nS
12 13 Qo Rfeedback 24 to 26 nS 26.3 nS 26 nS
1 14 Qi Rbias 24 to 26 nS 25.2 nS 25 nS
15 14 Qi C coupling <1 nS <0.2 nS <0.1 nS
15 16 Qi Rfeedback 24 to 26 nS 26.3 nS 26 nS
All pins → Ground all < 1 nS
Detector G106a DIB 3
side coax ST-3-8 date/who: 2019 Oct 22 NM, ZW
face 3
+lead - lead signal typical previous measured
1 2 QET A 100 to 200 Ω 201 Ω 298 Ω
2 4 QETA-B 100 to 200 Ω 241 Ω 238 Ω
3 4 QET B 100 to 200 Ω 221 Ω 218 Ω
4 6 QETB-C 100 to 200 Ω 186 Ω 182 Ω
5 6 QET C 100 to 200 Ω 172 Ω 167 Ω
6 8 QETC-D 100 to 200 Ω 185 Ω 180 Ω
7 8 QET D 100 to 200 Ω 188 Ω 161 Ω
2 8 QETA-D 100 to 200 Ω 211 Ω 207 Ω
chassis 9 LED1 Rforward 8 to 9 MΩ 757 kΩ 0.752 MΩ
chassis 9 LED1 Vforward 1.0 to 1.1 V 1.11 V 1.10 V
9 chassis LED1 Rreverse <1 nS <1 nS 10 MΩ
chassis 10 LED2 Rforward 8 to 9 MΩ 220 kΩ 0.220 MΩ
chassis 10 LED2 Vforward 1.0 to 1.1 V 1.11 V 1.08 V
10 chassis LED2 Rreverse <1 nS 7.5 MΩ 500 kΩ
1 11 Qo Rbias 24 to 26 nS <0.1 nS <0.1 nS
12 11 Qo C coupling <1 nS <0.2 nS <0.1 nS
12 13 Qo Rfeedback 24 to 26 nS 25.2 nS 25 nS
1 14 Qi Rbias 24 to 26 nS <0.1 nS <0.1 nS
15 14 Qi C coupling <1 nS <0.1 nS <0.1 nS
15 16 Qi Rfeedback 24 to 26 nS 25.2 nS 25 nS
All pins → Ground <0.1 nS except LEDs
Detector G106a DIB Motor
side coax - date/who: 2019 Oct 22 NM, ZW
face 6
+lead - lead signal typical previous measured
10 11 Motor Coil A 5-10 kΩ 7.13 kΩ 7.10 kΩ
12 13 Motor Coil B 5-10 kΩ 7.54 kΩ 7.54 kΩ
14 chassis Backward endstop - ground open - open
15 chassis Forward endstop - ground open - open

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