2012/02/01
| 0230 | Start taking data: three 2-hour long Ba-133 data series each at -1 V and -2 V bias. Ba-133 source located 6 inches below top of mu-metal shield |
|---|---|
| 0250 | Fill N2 cold trap not full… but almost! It'll last until the morning, and I can't be bothered to get some more nitrogen for the sake of the litre that's missing. |
| 1115 | Filled LN2 cold trap. |
| 2147 | Taking data at -3V, -4V, -5V, -6V; at each bias, 3 series of half-hour length are taken. Ba-133 source located 6 inches below top of mu-metal shield |