JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@unpublished{checchin:srf2023-moiaa06,
author = {M. Checchin},
title = {{Status of Cavity and Cryomodule Production for LCLS-II-HE}},
% booktitle = {Proc. SRF'23},
booktitle = {Proc. Int. Conf. RF Supercond. (SRF'23)},
language = {english},
intype = {presented at the},
series = {International Conference on RF Superconductivity},
number = {21},
venue = {Grand Rapids, MI, USA},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {09},
year = {2023},
note = {presented at SRF'23 in Grand Rapids, MI, USA, unpublished},
abstract = {{The LCLS-II HE project is the energy upgrade to the superconducting LCLS-II linac. It consists in adding twenty-three additional 1.3 GHz cryomodules to the linac, with cavities operating at a gradient of 20.8 MV/m with internal quality factor of 2.7·10¹0. Cavity production and cryomodule assembly are currently in full regime. Cavities are being manufactured in industry with a modified doping recipe and surface processing compared to LCLS-II production. This allows to achieve ¿ and exceed ¿ the more demanding specifications of LCLS-II-HE. The cryomodules are assembled and tested at the two partners labs (Fermilab and Jefferson Lab) similarly to LCLS-II and then delivered at SLAC. Test data demonstrate the high performance of the cryomodules currently being assembled: the usable voltage gain per cryomodule is in average 206.8 MV, exceeding specification by 34 MV, and the average Q-factor at 20.8 MV/m is 3·10¹0. Based on the current data, we expect to continue delivering high performance cryomodules and move successfully to the installation phase of the project.}},
}