2018/04/26 (Thursday)
| Warming up after discovering short from DIB3 QET A to chassis at 77K (again). He and N2 in cryostat vacuum jacket. | |
| 0410 | MC(Cernox) = 201.0 K, Short > 200 kΩ |
| 0815 | MC(Cernox) = 222.6 K, Short > 200 kΩ |
| 0925 | MC(Cernox) = 227.7 K, Sorb > 249 K, main bath outer surface = 21.5 C, Short = 0.38 nS |
| Resistance of short rose roughly linearly from 5.48 kΩ at 77 K to 8.3 kΩ at 156 K, then somewhere between 156 K and 201 K it disappeared. Last time it disappeared at around 105 K. |
|
| 1640 | MC(Cernox) = 252.9 K |
| 2050 | MC(Cernox) = 266.8 K |