[gammanoles] SB1 and SB2...

[Powell Barber]

SB1 and SB2 are vented and on the bench in the anneal lab.

SB1’s performance was normal.

SB2, however, exhibited an extremely high gas load on pumpdown.  Pumping overnight only produce 1E-5 Torr.  Connected leak detector and confirmed that there is a leak, located somewhere in the capsule area.  I was unable to remove the preamp cover for further isolation, and given the stories I’ve heard about rust and goo in the others, felt that it was worth a visual inspection anyway.

cheers,

p.