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Maintenance for Gas Flow Cryostat (Miss Piggy)

Wednesday, February 6, 2019
Fix of the helium leak into the cryostat vacuum at base temperature.
Equipment/Beam Line: 

The attached pictures show the two Diffuser flanges with some of the old Indium still there. Rahim used  0.040 inch Indium wire to make a new seal. The cryostat was then tested at base temperature overnight then warmed up to room temperature and cooled down again to base. The leak is fixed, see attached CAMP screen capture, which shows the temperature of the 2nd run below 2 K  for 15 hours.

Bassam Hitti