| 0856 | Tower/MC/Coldplate = 80/54/??(2.28 kΩ) mK, Still = 1.12 K / 95 μbar, G1/G2 = 203/176 mbar, 1K Pot = 1.58 K / 6.0 mbar. MB = 41.7% |
| 0948 | Commence hour long UV bake. |
| 1003 | Fill LN2 dewar full. |
| 1147 | UV flash for 60 seconds, 10 minute cooldown. |
| 1215 | With 33kΩ resistor on DIB1 QOFB line, manually start series of data with -40V HV/ 10V DIB1 with 1000 starting/1000 ending randoms with 220 ADC Bin trigger threshold with on DIB1 Qo. Co-57 2m from tower facing southeast. |
| 1246 | Move source ~120° (will measure more accurately later) around fridge. Still 2m away from detector. Data is still running. |
| | Initial source direction approximately southeast, final source direction approximately west. The distance from the first position to the fridge axis was 195 cm; the distance from the second position to the fridge axis was 188 cm; and the distance between the two positions was 301 cm. By the law of cosines, the angular difference comes out to 103.6 degrees. |
| 1304 | Cease data run. Ground detector. Flash with UV LEDs for 30s, and cool down for 10min. |
| 1319 | With 33kΩ resistor on DIB1 QOFB line, manually start series of data with -60V HV/ 10V DIB1 with 1000 starting/1000 ending randoms with 220 ADC Bin trigger threshold on DIB1 Qo. Co-57 2m from tower facing south southwest. |
| 1420 | Cease data run. Ground detector. Flash with UV LEDs for 30s, and cool down for 10min. |
| 1434 | With 33kΩ resistor on DIB1 QOFB line, manually start 20 minute series of data with 12V HV/ 0V DIB1 with 1000 starting/1000 ending randoms with 220 ADC Bin trigger threshold on DIB1 Qo. Co-57 2m from tower facing south southwest. |
| 1458 | Cease data run. Ground detector. Flash with UV LEDs for 30s, and cool down for 10min. |
| 1511 | With 33kΩ resistor on DIB1 QOFB line, manually start 20 minute series of data with 12V HV/ 0V DIB1 with 1000 starting/1000 ending randoms with 220 ADC Bin trigger threshold on DIB1 Qo. Co-57 2m from tower facing south southwest. |
| 1532 | Cease data run. Ground detector. Flash with UV LEDs for 30s, and cool down for 10min. |
| 1544 | With 33kΩ resistor on DIB1 QOFB line, manually start 20 minute series of data with 12V HV/ -12V DIB1 with 1000 starting/1000 ending randoms with 220 ADC Bin trigger threshold on DIB1 Qo. Co-57 2m from tower facing south southwest. |
| 1605 | Cease data run. Ground detector. No flash in between this series and the upcoming. |
| 1607 | With 33kΩ resistor on DIB1 QOFB line, manually start 20 minute series of data with -12V HV/ 12V DIB1 with 1000 starting/1000 ending randoms with 220 ADC Bin trigger threshold on DIB1 Qo. Co-57 2m from tower facing south southwest. |
| 1627 | Cease data run. Ground detector. Bake with UV LEDs for 30 minutes, and cool down for 10 min. |
| 1645 | Commence LHe transfer (30.2%). |
| 1720 | End LHe transfer (91.7%). |
| 1728 | Release pressure from main bath. |
| | Fill LN2 coldtrap full. |
| 1733 | With 33kΩ resistor on DIB1 QOFB line, manually start 20 minute series of data with 12V HV/ -12V DIB1 with 1000 starting/1000 ending randoms with 220 ADC Bin trigger threshold on DIB1 Qo. Co-57 2m from tower facing south southwest. |
| 1756 | Ground the detector, but don't flash. |
| | With 33kΩ resistor on DIB1 QOFB line, manually start 20 minute series of data with 0V HV/ 0V DIB1 with 1000 starting/1000 ending randoms with 220 ADC Bin trigger threshold on DIB1 Qo. Co-57 2m from tower facing south southwest. |
| 1817 | Cease data run. Flash with UV LEDs for 30s, and cool down for 10min. |
| 1820 | Place lead brick partially in front of source castle to partially collimate the radiation. |
| 1821 | Release pressure from Main Bath. |
| 1830 | While viewing pulses on the GUI to check event rate we noticed taconis noise occurred. Removing the port to release pressure temporarily fixed the problem, but it would return once the port was covered. Decide to leave the port-stopper off for the next series, but we will check back afterwards. |
| 1848 | After a false start (logger turned off) at 1835, With 33kΩ resistor on DIB1 QOFB line, manually start 1 hour series of data with -40V HV/ 10V DIB1 with 1000 starting/1000 ending randoms with 220 ADC Bin trigger threshold on DIB1 Qo. Co-57 is collimated by placing 2“ thick lead bricks in front of castle “door” with 0.125” gap. 75cm from tower facing south southwest. |
| 1919 | Notice 122 keV peak is falling off in data. Cover castle door with lead, and move roughly 45° so that it is about 1m from tower (as close as possible with current setup) and facing back of lab. Uncover castle door so that there is the 0.125“ gap. Do not stop taking data series during this time. |
| 1936 | I am not really seeing the 122 keV line return, perhaps we are too far away. Cease data run. Flash with UV LEDs for 30s, and cool down for 10min. While flashing return Co-57 source back to original position 75 cm away from detector and facing south southwest. |
| 1949 | After flash check pulses on the SQUIDGui. Taconis noise is not present. Put stopper in main bath port. After a few minutes Taconis noise has not reappeared. Keep stopper in port and continue with data taking. |
| 1953 | With 33kΩ resistor on DIB1 QOFB line, manually start 15 minute series of data with -80V HV/ 10V DIB1 with 1000 starting/1000 ending randoms with 220 ADC Bin trigger threshold on DIB1 Qo. Co-57 is collimated by placing 2” thick lead bricks in front of castle “door” with 0.125“ gap. 75cm from tower facing south southwest. |
| 2010 | Cease data run, ground detector. Flash with UV LEDs for 30s, and cool down for 10min. |
| 2021 | With 33kΩ resistor on DIB1 QOFB line, manually start 15 minute series of data with +80V HV/ -10V DIB1 with 1000 starting/1000 ending randoms with 220 ADC Bin trigger threshold on DIB1 Qo. Co-57 is collimated by placing 2” thick lead bricks in front of castle “door” with 0.125“ gap. 75cm from tower facing south southwest. |
| 2036 | Cease data run, ground detector. Flash with UV LEDs for 30s, and cool down for 10min. |
| 2048 | With 33kΩ resistor on DIB1 QOFB line, manually start 15 minute series of data with -100V HV/ 10V DIB1 with 1000 starting/1000 ending randoms with 220 ADC Bin trigger threshold on DIB1 Qo. Co-57 is collimated by placing 2” thick lead bricks in front of castle “door” with 0.125“ gap. 75cm from tower facing south southwest. |
| 2104 | Cease data run, ground detector. Flash with UV LEDs for 30s, and cool down for 10min. |
| 2116 | With 33kΩ resistor on DIB1 QOFB line, manually start 15 minute series of data with +100V HV/ -10V DIB1 with 1000 starting/1000 ending randoms with 220 ADC Bin trigger threshold on DIB1 Qo. Co-57 is collimated by placing 2” thick lead bricks in front of castle “door” with 0.125“ gap. 75cm from tower facing south southwest. |
| 2131 | Cease data run, ground detector. Commence 2 hour UV bake. Allow to cool for 1 hour before starting UV bias sweeps. |
| 2137 | Put Co-57 source away in safe in its lead container. Turn off Geiger counter and remove radiation warning signs. |
| 0026 | Start automatic data taking sequence Alternating_flashandsweep_0to12_evenV_UV.msl to take 15 minute series of alternating +/- DIB1 voltage from 0, -2, +2 …up to -12, +12, only even values (HV grounded). 30 sec UV flash/10 minute cooldown in between. 1000 starting/ending randoms and 220 ADC Bin trigger threshold. |