2016/11/11 (Friday)
| Setup: DIB1/3/4 → 3.2 MHz filters → cables1/2/3 → DCRC55(1)/33(2)/50(3) | |
| Last night's data: looks good, channels held stable all night. Not many noise traces so probably the threshold should have been a little lower. | |
| 0810 | Tower/MC/Coldplate = 33.2/35.9/230 mK, Still = 1.3 K / 110 μbar, G1/G2 = 175/150 mbar, 1K Pot = 1.70 K / 30 mbar. MB = 65.0%. Boiloff rate: between slow- and fast-mode. Haven't been able to establish slow-mode for a while now. |
| 0815 | Fill LN2 cold trap bath. |
| 0850 | Measure event rate, 21 pulses counted in 1 second = 21 Hz. This is close to the rate before the activation on Tuesday. |
| 0930 | Put 88Y source in the castle behind the fridge to take coincident data. |
|---|---|
| 1243 | took series of coincident data 07161111_1243 using DCRCX as DCRC4 and triggering on its phonon A |
| 1325 | Main bath = 57.3% |
| 1556 | Start sequence of 15 one-hour data series of 0V data with Frontend Gain = 5/2/5, OG = 8/3/8, with 1000 beginning randoms, with no flashing in between series, triggered with NaI coincidence setup using DCRCX (DCRC4) PhA. |
| 1638 | Fill LN2 bath full. |