| 1115 | Dump = 802.0 mbar (G2, V9 open). MC reading 194K, Sorb reading 250 K. |
| | 5 mbar seen in fridge at P1. Pump this to dump, no measurable change in dump pressure. |
| | Dump pressure corrected for barometric pressure: 803.0 mbar |
| 1130 | Begin loosening screws to drop Dewar. |
| 1215 | Dewar dropped. IVC frosty. |
| 1330 | IVC dry. Fill IVC with nitrogen. |
| 1515 | MC thermometer reads 285 K. Begin opening IVC, taking off middle and bottom pieces as a unit. |
| 1555 | Pushed a crumpled section of UHV foil up into the stripline tube from underneath, up into the hole in the IVC flange where the IVC widens out just below the MC. Foil extends perhaps 1 foot into tube. Trimmed it at the bottom to accommodate the 0.5“ clearance between IVC and top of 100 mK can. Pushed ends of foil up against IVC, then put pieces of copper tape over the opening, holding the foil up. Tape mostly covers the opening itself. Tried to keep foil and tape holes loose enough to allow plenty of gas flow. Poked holes in the foil before crumpling it, one small hole every 1” or so. |