| | Setup: DIB1/3/4 → 3.2 MHz filters → cables 1,2,3 → HV board inputs 1,3,2 → HV board outputs 1,2 → DCRC55(1)/50(3) |
| | NaI-coincident data taken overnight, HV=60V. The last series in the sequence ended at 7:25 (10 hours of data starting at 21:25 last night). BatViewer shows that all 5 channels are still good, nothing railed, reasonable pulse shapes. |
| 1026 | Do a 30 minute bake 30s on / 5s off, prepare for another 3 hours of data by pre-biasing to 75V for 5 min, this will end just after the PuBe source arrives |
| 1140 | Tower/MC/Coldplate = 33.3/34.5/203 mK, Still = 1.03 K / 110 μbar, G1/G2 = 192/171 mbar, 1K Pot = 1.68 K / 22 mbar. MB = 66.3%. Boil off rate: faster than slow mode. |
| 1345 | Fill LN2 cold trap full |
| 1250 | do a 6 minute bake |
| 1354 | PuBe source in parafin container next to fridge, outside of shielding, will return at 16:15 |
| 1400 | overbias to 115V wait 5 minutes |
| 1415 | see pulses, modify source position to decrease rate in ZIP do ZAP |
| 1423 | source rate still a bit high – 130Hz |
| 1425 | moved it back about a meter and got to 90Hz |
| 1615 | removed PuBe source, Andy gave us the key (on Matt's desk) we can use it anytime between now and Dec 31st 8am-4pm, no weekends, in the paraffin case only |
| 1627 | ramp voltage down and do a flash, follow with bkgnd running in same conditions as above |
| 1659 | the rate post-PuBe source seems to be around 36 Hz, so we didn't pick up a lot of activation from this |
| 1702 | note DCRC1 triggering is enabled in all the data from today and yesterday, I was worried about this because in the past DCRC1 has produced spurious triggers, but I just checked with the “rt” command to the telnet session and it is apparently not issuing spurious triggers, maybe it's OK now. DCRC3 is also not producing spurious triggers |