JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{kim:napac2022-mopa85,
author = {S.H. Kim and C. Adolphsen and L. Ge and W. Hartung and F. Ji and M.P. Kelly and T. Konomi and J.W. Lewellen and S.J. Miller and M.S. Patil and T.B. Petersen and P. Piot and J.T. Popielarski and K. Saito and L. Xiao and T. Xu},
% author = {S.H. Kim and C. Adolphsen and L. Ge and W. Hartung and F. Ji and M.P. Kelly and others},
% author = {S.H. Kim and others},
title = {{Design of a 185.7 MHz Superconducting RF Photoinjector Quarter-Wave Resonator for the LCLS-II-HE Low Emittance Injector}},
& booktitle = {Proc. NAPAC'22},
booktitle = {Proc. 5th Int. Particle Accel. Conf. (NAPAC'22)},
pages = {245--248},
eid = {MOPA85},
language = {english},
keywords = {cavity, SRF, gun, cathode, electron},
venue = {Albuquerque, NM, USA},
series = {International Particle Accelerator Conference},
number = {5},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {10},
year = {2022},
issn = {2673-7000},
isbn = {978-3-95450-232-5},
doi = {10.18429/JACoW-NAPAC2022-MOPA85},
url = {https://jacow.org/napac2022/papers/mopa85.pdf},
abstract = {{A 185.7 MHz superconducting quarter-wave resonator (QWR) was designed for the low emittance injector of the Linac Coherent Light Source high energy upgrade (LCLS-II-HE). The cavity was designed to minimize the risk of cathode efficiency degradation due to multipacting or field emission and to operate with a high RF electric field at the cathode for low electron-beam emittance. Cavity design features include: (1) shaping of the cavity wall to reduce the strength of the low-field coaxial multipacting barrier; (2) four ports for electropolishing and high-pressure water rinsing; and (3) a fundamental power coupler (FPC) port located away from the accelerating gap. The design is oriented toward minimizing the risk of particulate contamination and avoid harmful dipole components in the RF field. The ANL 162 MHz FPC design for PIP-II is being adapted for the gun cavity. We will present the RF design of the cavity integrated with the FPC.}},
}