[Isotope-prod] No 11:00 Meeting today

[Kevin Jordan]

HI All,
The beryllium window was confirmed leak tight & we are working to return it to Argonne. There was a slight discoloration on the copper gasket with is likely the cause of the (10^-5) leak.

I have no further information on whether the LCLS-II HE VCM (verification cryomodule will be shipped to JLab for testing or if FermiLab will ship directly to SLAC. If they decided to shop it to JLab for testing it would likely be December or January.

Bob Legg commented that the maximum total gradient in SELAP (GDR) mode was 204 MeV (!!!) for the 8 cavities with no field emission.

Best regards,
Kevin

[cid:3836C499-AC1F-40AE-B77E-2A96F1D46F37]
Discoloration of copper gasket from heating

[cid:19B20276-CA09-4B4D-8F0E-C4AA15764FA4]
Vacuum side of window

[cid:636FC719-ACEC-4624-A4A2-85F8D1D2B999]
Large vertical spot (oxidation) on air side of window


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