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iocsoftinspcevdp restored

5 days 20 hours ago
Log Number: 4546510Logbook(s): Tags: Body: restorelib 3.0.1 Target restore date was 2026-09-04 17:07:27 The output from the myRestore execution was as follows: iocsoftinspcevdp systemEnum@2026-09-04 17:07 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocsoftinspcevdp (success) PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 Procedure return status: Success
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gun vacuum work: RGA on

5 days 20 hours ago
Log Number: 4546508Logbook(s): Entry Makers: marcyBody: 

RGA turned on in prep chamber, separated by valve from HV chamber. Fig 1 shows vacuum activity when turning on, then shows much more vacuum signal when I did a 60 second degas of the filament to reduce the background due to gasses adsorbed on the RGA itself.
Set to run over the weekend on analog signal only - CEM will get turned on next week for more sensitivity.

Extractor gauge reading 2.7e-10 at 16:50, continuing to drop (Fig 2

marcy

Gun electrode swap: gauge warm up

5 days 22 hours ago
Log Number: 4546497Logbook(s): Entry Makers: marcyBody: 

Extractor gauge turned on in the HV chamber. Running this over the long weekend will degas the gauge and allow us to characterize the vacuum in the chamber prior to the vacuum work the week of Sept 14. As expected, there was an increase in ion pump pressure when the gauge was turned on due to the hot filament outgassing. Gauge reads 6.74e-10 Torr after 40 minute warm up, still dropping.

Still searching for a cable that works with this older laptop to turn on the RGA, RGA may have to wait until next week to warm up.

marcy

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MCC Crew Chief Howard
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Program Deputy Ghosh
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