[Isotope-prod] LERF LCLS-II Schedule

[Joe Wilson]

Hello to All,
For your information, LHe trailer connection schedule on 23Sep20 depends weather. The connection of the LHe trailer will be behind CHL1 Cold Box Room. It is a complex outside u-tube operation with crane and scaffolding. CHL1, CHL2 and CEBAF/LERF conditions are coordinated to LHe trailer activities to support NL warm-up to 300K and disconnection of old 2K Cold Box.
I assume the JLab’s position is that the LHe trailer has priority, if weather forces a schedule conflict.
Thanks!



-----------------

Joe D. Wilson, Jr.

Cryogenic Operations Engineer



Jefferson Lab

www.jlab.org<http://www.jlab.org/>

office desk: 757-269-7722

jwilson at jlab.org


________________________________
From: Naeem Huque <huque at jlab.org>
Sent: Wednesday, September 9, 2020 1:54 PM
To: isotope-prod at jlab.org <isotope-prod at jlab.org>; Kevin Jordan <jordan at jlab.org>; Steve Benson <felman at jlab.org>; Jonathan Creel <creel at jlab.org>; Joe Wilson <jwilson at jlab.org>; Neil Wilson <wilsonn at jlab.org>; John Fischer <fischer at jlab.org>; Brian Mastracci <brianm at jlab.org>; David Savransky <dsavr at jlab.org>; Matt Weaks <weaksmc at jlab.org>; Justin Kent <jtkent at jlab.org>; Anna Shabalina Solopova <shabalin at jlab.org>; Michael Drury <drury at jlab.org>; Larry Farrish <lfarrish at jlab.org>
Cc: Joe Preble <preble at jlab.org>; Mike Spata <spata at jlab.org>; Tony Reilly <areilly at jlab.org>
Subject: LERF LCLS-II Schedule

Hello Everyone,

I have a tentative schedule for getting the LCLS-II CM out of the LERF over the next few weeks. Some of the dates may be out-of-date, and others may find conflicts; I hope to get any such feedback from this email chain. Please also feel free to pass it along to anyone that may be relevant.

Friday, September 11th
LCLS-II supply u-tubes are pulled (Cryo)
CM warm-up begins (SRF)

Saturday, September 12th
CM warm-up (SRF)

Sunday, September 13th
CM warm-up (SRF)

Monday, September 14th
CM warm-up complete (SRF)
Isotope Run prep

Tuesday - Thursday
Isotope run (LERF)

Friday, September 18th
Concrete Blocks are pulled from LERF entrance (Neil Wilson)

Monday, September 21st
CM Bellows are re-positioned (Neil Wilson)
Partial CM disassembly, excluding cryo lines (SRF)

Tuesday, September 22nd
CM cables pulled (Larry Farrish)
Partial CM disassembly, excluding cryo lines (SRF)

Wednesday, September 23rd
Return U-tube is pulled (cryo)
Remaining CM disassembly (SRF)

Thursday, September 24th or Friday, September 25th
CM is pulled from the LERF vault (Neil Wilson/SRF)

Please let me know if there are any issues or comments

Thanks,
Naeem

Naeem Huque
Staff Engineer
Superconducting Radiofrequency (SRF)
Jefferson Lab
12000 Jefferson Ave
Newport News
VA, 23606
Cell: 217-721-5422
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