| 1755 | Fill N2 cold trap full. |
| | DCRC31 stability looks good - after leaving DetectorReadout vi open overnight, pulses look good and Qi & Qo baselines have amplitudes of around 3 mV. |
| 2045 | Shorted pins on D-50 connector and soldered copper foil between shield and pins to provide grounding. Upon connecting it with DIB 2, trigger event increased on DIB 1. Most, but not all, of the pulses are negative. Reducing Qi & Qo potential from 0.21 V & 0.22 V respectively to 0.19 V yields more of a mixture between positive and negative pulses. This may indicate that there is a small field across the crystal, which could cause problems during neutralisation. Leave defaults on for now. |
| 2350 | Start flashing detector while exposing it to Ba-133 source. Automated flash should last for 14 hours; mixing chamber temperature has risen to 157 mK. This will be followed by a 2-hour cooldown, 5 minute run and finally a 6 second flash to determine if a longer flash is necessary. Default charge biases for 0 V have been used, but it may be worth changing these for this run. |
| 2355 | Fill N2 cold trap full. |