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{konomi:napac2022-mopa87,
author = {T. Konomi and C. Adolphsen and S. Gatzmaga and W. Hartung and M.P. Kelly and S.H. Kim and J.W. Lewellen and S.J. Miller and D.G. Morris and P. Murcek and T.B. Petersen and J.T. Popielarski and K. Saito and A. Taylor and R. Xiang and T. Xu},
% author = {T. Konomi and C. Adolphsen and S. Gatzmaga and W. Hartung and M.P. Kelly and S.H. Kim and others},
% author = {T. Konomi and others},
title = {{Design of the Cathode Stalk for the LCLS-II-HE Low Emittance Injector}},
& booktitle = {Proc. NAPAC'22},
booktitle = {Proc. 5th Int. Particle Accel. Conf. (NAPAC'22)},
pages = {253--255},
eid = {MOPA87},
language = {english},
keywords = {cathode, cavity, gun, SRF, ISOL},
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-MOPA87},
url = {https://jacow.org/napac2022/papers/mopa87.pdf},
abstract = {{Superconducting radio-frequency (SRF) electron guns are attractive for delivery of beams at a high bunch repetition rate with a high accelerating field. An SRF gun is the most suitable injector for the high-energy upgrade of the Linac Coherent Light Source (LCLS-II-HE), which will produce high-energy X-rays at high repetition rate. An SRF gun is being developed for LCLS-II-HE as a collaborative effort by FRIB, HZDR, ANL, and SLAC. The cavity operating frequency is 185.7 MHz, and the target accelerating field at the photocathode is 30 MV/m. The photocathode is replaceable. The cathode is held by a fixture (’cathode stalk’) that is designed for thermal isolation and particle-free cathode exchange. The stalk must allow for precise alignment of the cathode position, cryogenic or room-temperature cathode operating temperature, and DC bias to inhibit multipacting. We are planning a test of the stalk to confirm that the design meets the requirements for RF power dissipation and biasing. In this presentation, we will describe the cathode stalk design and RF/DC stalk test plan.}},
}