Difference between revisions of "PITMinutes 03-11-2019"
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1L25 and 1L26 themal cycled to 30 K in Jan. Modest Help? | 1L25 and 1L26 themal cycled to 30 K in Jan. Modest Help? | ||
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Event Description | Event Description | ||
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Vaccum degrades | Vaccum degrades | ||
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| + | 8 MeV energy loss in 1L26 | ||
| + | Warm region vacuumn almost back to nominal | ||
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| − | + | Scaled back to 1020 in the NLINAC | |
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2. Plasma Cleaning (Powers) | 2. Plasma Cleaning (Powers) | ||
Revision as of 13:19, 11 March 2019
Attendance
R. Bachimanchi, K. Baggett, A. Freyberger, R. Geng, C. Hotaver, G. Krafft, A. Kimber, R. Legg, C. Mounts, R. Nelson, T. Plawski, T. Powers, C. Reece, S. Suhring, and H. Wang.
Agenda and Notes
1. Operations Status and Summary/Review (Freyberger)
Notble event during OPS last week. Net result is gradients in two modules turned back to below onset of FE. Question to be discussed is whether all should get similar treatment.
Pre-cursors
Mount/Pwers observed many quench faults in 1L25-8 that are not quenches but are ????
1L25 and 1L26 themal cycled to 30 K in Jan. Modest Help?
Event Description
Vaccum degrades
1L25-8 becomes Unstable
valve fails
1L25-8 by-passed not recoverable
gradient loss in 1L25-7
Recovery
Neutron detectors used to find new 1L25 and 1L26 gradients
20+ MeV energy loss in 1L25
8 MeV energy loss in 1L26
Warm region vacuumn almost back to nominal
Scaled back to 1020 in the NLINAC
2. Plasma Cleaning (Powers)
Funding approved
Action Items
Leadership of quenches. Offline discussion.
C100 Refurbishment Project for the future?
