[gammanoles] SB1 and SB2...

[S. L. Tabor]

Thanks, Powell.  So we have another leak to fight.  We are going to 
postpone work on SB1 & 2 until we get SB3 & 4 working.  Both the latter 
currently have temperature sensing problems.
Sam

On 10/24/2017 11:31 AM, Powell Barber wrote:
> 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.
>
>
>
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