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2016/09/27 (Tuesday)

Previous Day

DCRC1 and DCRC3 powered on and connected through HV setup EBoxDIB 2/3 → 3.2 MHz filters → Cables → remapping board I/remapping board II → HVside2board “DIB1”/“DIB2” → DCRC55(1)/50(3). Remapping boards have all possible lines switched off. .
Baking using IR LEDs for 14 hours last night. Base temp held at 545mK until bake ended at 0350, then fell to ~90mK
0900 Tower/MC/Coldplate = 87.8/56/??(3.2 kΩ) mK, Still = 1.08 K / 95 μbar, G1/G2 = 196/188 mbar, 1K Pot = 1.57 K / 6.0 mbar. MB = 42.9% 1K Pot has been stable.
0902 Fill LN2 cold trap bath.
1050 After fiddling with the breadboard and resistor, we concluded that having the resistor on the breadboard attached with wires to the HV switchboard produced the lowest levels of white noise, so we will take data in that configuration.
1110 Check pulses and attempt to reduce trigger threshold as much as possible. 300 ADC Bins seems to be the lowest we can go without excess noise triggers.
1130 Flash with IR LEDs for 30s and cooldown for 10 minutes.
1150 With 33kΩ resistor on DIB1 QOFB line, manually start series of 30 minutes data with 20V HV/ -10V DIB1 with 1000 starting/1000 ending randoms with 300 ADC Bin trigger threshold on DIB1 Qo.
1222 Cease data run. Ground detector. Flash with IR LEDs for 30s, and cooldown for 10 minutes.
1238 With 33kΩ resistor on DIB1 QOFB line, manually start series of 30 minutes data with 20V HV/ -10V DIB1 with 1000 starting/1000 ending randoms with 300 ADC Bin trigger threshold on DIB1 Qo.
1310 Cease data run. Ground detector. Flash with IR LEDs for 30s, and cooldown for 10 minutes.
1327 With 33kΩ resistor on DIB1 QOFB line, manually start series of 30 minutes data with 40V HV/ -10V DIB1 with 1000 starting/1000 ending randoms with 300 ADC Bin trigger threshold on DIB1 Qo.
1402 Cease data run. Ground detector. Flash with IR LEDs for 30s, and cooldown for 10 minutes.
1417 With 33kΩ resistor on DIB1 QOFB line, manually start series of 45 minutes data with 40V HV/ -10V DIB1 with 1000 starting/1000 ending randoms with 300 ADC Bin trigger threshold on DIB1 Qo.
1506 Cease data run. Ground detector. Flash with IR LEDs for 30s, and cooldown for 10 minutes.
1520 With 33kΩ resistor on DIB1 QOFB line, manually start series of 45 minutes data with 60V HV/ -10V DIB1 with 1000 starting/1000 ending randoms with 300 ADC Bin trigger threshold on DIB1 Qo.
1617 Cease data run. Commence LHe transfer (31.9%).
1637 With 33kΩ resistor on DIB1 QOFB line, manually start series of coincidence test data with 12V HV/ -12V DIB1 with 1000 starting/1000 ending randoms with 1 ADC Bin trigger threshold on DIB4 PA which is connected to an external HPGe trigger.
1642 Cease data run. Ground detector. Flash with IR LEDs for 30s, and cooldown for 10 minutes.
1659 End LHe transfer (80.7%).
1704 Release pressure from main bath.
1706 Accidentally log some garbage data.
1710 With 33kΩ resistor on DIB1 QOFB line, manually start series of 60 minutes data with 60V HV/ -10V DIB1 with 1000 starting/1000 ending randoms with 300 ADC Bin trigger threshold on DIB1 Qo. Set to trigger on DIB1 Qinner, not Qouter, data is garbage
1732 Release pressure from main bath.
1752 Release pressure from main bath.
1813 Cease data run. Ground detector. Flash with IR LEDs for 30s, and cooldown for 10 minutes.
1830 With 33kΩ resistor on DIB1 QOFB line, manually start series of 60 minutes data with 60V HV/ -10V DIB1 with 1000 starting/1000 ending randoms with 300 ADC Bin trigger threshold on DIB1 Qo. Data has 1000 bin prepulse instead of 500 bin prepulse
1933 Cease data run. Ground detector. Flash with IR LEDs for 30s, and cooldown for 10 minutes.
2002 With 33kΩ resistor on DIB1 QOFB line, manually start series of 90 minutes data with 80V HV/ -10V DIB1 with 1000 starting/1000 ending randoms with 300 ADC Bin trigger threshold on DIB1 Qo. Data still bad. Unsure why
2032 Something is still wrong with this data. Stop series after a few moments, template length is still not matching up, though everything we normally check looks fine. Load ODB from previous series, before DAQ was altered. Check everything again and it looks ok, except it loaded as not triggering on anything, maybe because it ends on randoms? Set to trigger on DIB1 Qo. Ground detector. Flash with IR LEDs for 30s, and cooldown for 10 minutes.
2059 With 33kΩ resistor on DIB1 QOFB line, manually start series of 90 minutes data with 80V HV/ -10V DIB1 with 1000 starting/1000 ending randoms with 300 ADC Bin trigger threshold on DIB1 Qo.
2128 Something is still wrong with this data. Stop series after a few moments, template length is still not matching up, though everything we normally check looks fine. AHA, DCRC4 is enabled and powered. Disable and power down DCRC4. Flash with IR LEDs for 30s, and cooldown for 10 minutes.
2239 Sooo…. not sure why, but this was fixed after doing the following things. 1) Open squidGUI and start it to look at pulses. Then kill it. 2) Run flashandtake.py with -10V on DIB1 for 5 minutes. Data looked ok. Flash with IR LEDs for 30s, and cooldown for 10 minutes.
2240 Y-88 source put out.
2250 With 33kΩ resistor on DIB1 QOFB line, manually start series of 30 minutes data with 80V HV/ -10V DIB1 with 1000 starting/1000 ending randoms with 300 ADC Bin trigger threshold on DIB1 Qo.
2322 Cease data run. Ground detector. Flash with IR LEDs for 30s, and cooldown for 10 minutes.
2334 With 33kΩ resistor on DIB1 QOFB line, manually start series of 30 minutes data with 100V HV/ -10V DIB1 with 1000 starting/1000 ending randoms with 300 ADC Bin trigger threshold on DIB1 Qo.
2339 Y-88 source put away.
1156 Cease data run. Ground detector. Commence 8 hour IR bake. Fill LN2 cold trap full.

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