PITMinutes 08-14-2017

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R. Bachimanchi, K. Baggett, C. Hovater, G. Krafft, A. Kimber, R. Legg, C. Mounts, R. Nelson, T. Powers, T. Plawski, C. Reece, and H. Wang.

Agenda and Notes

1. Operations Status and Summary (Freyberg)

Cryo event July 27, Best guess, Oct. 1 for 2 K on one plant. 2 K on both plants on the 25th of Oct. Cleaning He and filling modules presently.

2. "Staytreat" Recap and discussion

Link to 2017 StayTreat Agenda https://www.jlab.org/indico/event/227/timetable/#all.detailed

Highlights: 140 MeV Cryomodule: can we provide it for CEBAF? What is the path? Radiation Calculations in LCLS II Modules. CEBAF up to 2 GeV at 4 K. Gigi talk microphonic concerns from high QL in C75 cavities? See Anne-Marie and Rongli on particulate movement and radiation measurements from FE. Mike Miers talk very interesting and inspiring. Clyde and quench fault discussion: ratio of 50 nsec faults (probably arcs) to slower trip-offs (real quenches) might provide an interesting measurement.

3. Linac Performance (McCaughan)

McCahghan Tech Note on Rebaselining Linac Performance Rebaselining Tech Note 17-039

PIT Meeting Presentation

Action Items

Leadership of quenches. Offline discussion.