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Maintenance for Helios

Date: 
Tuesday, February 22, 2005
Synopsis: 
Leak Rate While Cooling Down
Equipment/Beam Line: 
Description: 

Leak check after vacuum jacket was polished. Bg: 1e-9 (no zeroing) no leak at R.T on top vac jacket started cooling at 6:30am nitrogen to magnet stopped P =1E-5 torr; BG= 1.6E-5

Author: 
Rahim Abasalti