[Pansophy] FW: Data in traveler C75-CPR-ASSY-TOVR

[Megan McDonald]

From: Danny Forehand <forehand at jlab.org>
Sent: Monday, September 28, 2020 11:19 AM
To: Gianluigi Ciovati <gciovati at jlab.org>; Chris Dreyfuss <dreyfuss at jlab.org>
Cc: Megan McDonald <megan at jlab.org>; Kirk Davis <kdavis at jlab.org>; Kurt Macha <macha at jlab.org>
Subject: Re: Data in traveler C75-CPR-ASSY-TOVR

This traveler needs to be revised as we do not use the ion pump any more. The convectron gauge in use should be reading under range when the pairs are sent out. The pressure will probably rise through out-gassing over time, which will then show on the gauge.

Regards,
Danny Forehand
SRF Cavity Production Team
[cid:image001.png at 01D69589.E8A03540]


________________________________
From: Gianluigi Ciovati <gciovati at jlab.org<mailto:gciovati at jlab.org>>
Sent: Monday, September 28, 2020 11:02 AM
To: Chris Dreyfuss <dreyfuss at jlab.org<mailto:dreyfuss at jlab.org>>
Cc: Danny Forehand <forehand at jlab.org<mailto:forehand at jlab.org>>; Megan McDonald <megan at jlab.org<mailto:megan at jlab.org>>; Kirk Davis <kdavis at jlab.org<mailto:kdavis at jlab.org>>; Kurt Macha <macha at jlab.org<mailto:macha at jlab.org>>
Subject: Data in traveler C75-CPR-ASSY-TOVR

Hi Chris,
I looked at the data in traveler C75-CPR-ASSY-TOVR as I'm trying to track the pressure in the 3 C75 cavity pairs but traveler #2 is dated Sept. 22 on step 17 but the 2nd pair (RI002_RI005) should have been turned over to CMM around mid-June: could you please check the date when the pair was turned over and correct the traveler?
The same for traveler #3, also dated Sept. 22 on step 17 but the 3rd pair (RI001_RI003) was turned over before that date: could you please correct the date?
Also the "CavityPairPressure17" on step 17 is exactly the same for the 3 pairs (1.2e-8 mbar): is that correct?

Thanks,
Gigi
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