2012/02/10
| 0846 | Filled LN2 cold trap |
|---|---|
| 1140 | Started Helium transfer (9.5%) |
| 1245 | End Helium transfer (84%) |
| 1740 | Filled LN2 cold trap. |
| Tower temperature is ~ 250 mK and rising. There's probably a blockage in the He cold trap– needs to be cleaned. Tomorrow, DCRC boards will be switched out for the HV interface boards, and the new shield for one of the boards will be tested out by looking at the noise. Hopefully, we can also take data if the temperature lowers enough. |