[Lcls-ii] LCLS-II Achievement of 4 GV Stable Voltage

[Christine Fragapane]

Dear LCLS-II Team,

LCLS-II has just successfully reached another milestone in its commissioning.  This was achieved thanks to all your hard work, and it reflects the quality of work done at JLab.

Great job, everyone!

________________________________

________________________________
From: Katherine Wilson <kwilson at jlab.org>
Sent: Sunday, July 10, 2022 12:13 PM
To: Christine Fragapane <chummel at jlab.org>
Cc: Ed Daly <edaly at jlab.org>; Naeem Huque <huque at jlab.org>
Subject: Fw: Achievement of 4 GV Stable Voltage


________________________________
From: Gonnella, Dan A <gonnella at slac.stanford.edu>
Sent: Friday, July 8, 2022 11:10 PM
To: Holtkamp, Norbert <norbert.holtkamp at slac.stanford.edu>; Burrill, Andrew B. <aburrill at slac.stanford.edu>; Cardoso, Jacki <jcardoso at slac.stanford.edu>; Rowen, Michael <rowen at slac.stanford.edu>; Fuerst, Joel <fuerst at anl.gov>; Hays, Greg <haysgr at slac.stanford.edu>; Ross, Marc C. <mcrec at slac.stanford.edu>; Fitzpatrick, Jarrod <jarrod at slac.stanford.edu>; Katherine Wilson <kwilson at jlab.org>; Ed Daly <edaly at jlab.org>; Joe Preble <preble at jlab.org>; Fauve, Eric A <efauve at slac.stanford.edu>; Ravindranath, Viswanath <vishy at slac.stanford.edu>; Pflueckhahn, Dirk <dirkp at slac.stanford.edu>; Anna Grassellino <annag at fnal.gov>; Checchin, Mattia <mattiac at slac.stanford.edu>; Martina Martinello <mmartine at fnal.gov>; Ari Palczewski <adpalczewsk at gmail.com>; Charlie Reece <reece at jlab.org>; Matthias Ulf Liepe <mul2 at cornell.edu>; Tug T Arkan <arkan at fnal.gov>; Richard P Stanek <rstanek at fnal.gov>; Hiatt, Tommy <hiatt at slac.stanford.edu>; Michael Drury <drury at jlab.org>; Elvin R Harms Jr <harms at fnal.gov>; Wilson, Andrew <andreww at slac.stanford.edu>; Shrishrimal, Swapnil R. <swapnil at slac.stanford.edu>; Apte, Akanksha <akapte at slac.stanford.edu>; Coy, Robert <rcoy at slac.stanford.edu>; White, Dominique A <dwhite at slac.stanford.edu>; Young, Lydia J <ljyoung at slac.stanford.edu>; Poliak, Rich <rpoliak at slac.stanford.edu>; Peterson, Thomas J <tjpete at slac.stanford.edu>; Klebaner, Arkadiy L <klebaner at slac.stanford.edu>; Heloin, Vincent <vincenth at slac.stanford.edu>; Benwell, Andy <abenwell at slac.stanford.edu>; Hoobler, Sonya <sonya at slac.stanford.edu>; Chen, Jing X <jxcchen at slac.stanford.edu>; Estrada, Laura <lnb at slac.stanford.edu>; DeBarger, Scott <debarger at slac.stanford.edu>
Cc: Andrew T. Cravatta <cravatta at fnal.gov>; Sam Posen <sposen at fnal.gov>; Jeremiah Holzbauer <jeremiah at fnal.gov>; Neil Anthony Stilin <nas97 at cornell.edu>; Gaitan, Gabriel <IMCEAEX-_o=ExchangeLabs_ou=Exchange+20Administrative+20Group+20+28FYDIBOHF23SPDLT+29_cn=Recipients_cn=c39348ee2ac9477191cb470a5f179da2-gabrielg at namprd07.prod.outlook.com>; Diaz-Cruz, Jorge Alberto <dejorge at slac.stanford.edu>; Porter, Ryan Douglas <rdporter at slac.stanford.edu>; Aderhold, Sebastian C. <aderhold at slac.stanford.edu>; Nelson, Janice L. <jnelson at slac.stanford.edu>; Zacarias, Lisa M <zacarias at slac.stanford.edu>; Maniscalco, James <jamesm at slac.stanford.edu>; Roger Ruber <ruber at jlab.org>; Dunham, Bruce M. <dunham at slac.stanford.edu>; Brachmann, Axel <brachman at slac.stanford.edu>; Ding, Yuantao <ding at slac.stanford.edu>; Zhou, Feng <zhoufeng at slac.stanford.edu>; gianluca.martino at desy.de <gianluca.martino at desy.de>; Julien Branlard <julien.branlard at desy.de>; andrea.bellandi at desy.de <andrea.bellandi at desy.de>
Subject: [EXTERNAL] Achievement of 4 GV Stable Voltage


All,



Yesterday, the LCLS-II SRF team exceeded 4 GV of total stable voltage on the installed cavities (operated independently and without beam). While there is still much work to go, including a few more CMs to commission and demonstration with beam, this is a tremendous achievement and marks a great success for the LCLS-II collaboration. It certainly could not have been done without the FNAL and JLab teams that built great cryomodules for us, the SLAC installation team, and the commissioning team which consists of experts from SLAC, FNAL, JLab, and Cornell.



I am extremely happy that we have reached this point, and still have a few more CMs to go to build a nice buffer! For me, this is a culmination of work on nitrogen-doped cavities that goes back to my time at Cornell working on the original LCLS-II high Q R&D program. Next up: the fast cool down to show that we can achieve high Q in the linac!



Thanks for all of your help to get to this point and looking forward to continued success,



Dan



P.S. Please feel free to forward this message to anyone I may have missed.



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

Dan Gonnella

SRF Group Leader

SLAC National Accelerator Laboratory

Bldg. 52, Rm. 247

Work: (650) 926-5554

Cell: (585) 615-0018


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/lcls-ii/attachments/20220711/e2d1fbc2/attachment-0001.html>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: ATT00001.txt
URL: <https://mailman.jlab.org/pipermail/lcls-ii/attachments/20220711/e2d1fbc2/attachment-0001.txt>