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{sakamoto:srf2023-wepwb085,
author = {N. Sakamoto and O. Kamigaito and K. Ozeki and K. Suda and K. Yamada},
title = {{Degradation and Recovery of Cavity Performance in SRILAC Cryomodules at RIBF}},
% booktitle = {Proc. SRF'23},
booktitle = {Proc. 21th Int. Conf. RF Supercond. (SRF'23)},
pages = {784--789},
eid = {WEPWB085},
language = {english},
keywords = {cavity, operation, vacuum, SRF, acceleration},
venue = {Grand Rapids, MI, USA},
series = {International Conference on RF Superconductivity},
number = {21},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {09},
year = {2023},
issn = {2673-5504},
isbn = {978-3-95450-234-9},
doi = {10.18429/JACoW-SRF2023-WEPWB085},
url = {https://jacow.org/srf2023/papers/wepwb085.pdf},
abstract = {{The RIKEN superconducting (SC) heavy-ion linear accelerator (SRILAC) has been providing beam supply for super-heavy elements synthesis experiments since its commissioning in January 2020. However, the long-term operation of SC radio-frequency (RF) cavities leads an increase in the X-ray levels caused by field emissions resulting from changes in the inner surface conditions. More than half of the ten SC 1/4 wavelength resonators (SC-QWRs) of SRILAC, operating at a frequency of 73 MHz, have experienced an increase in X-ray levels, thus, requiring adjustments to the acceleration voltage for continuous operation. While several conditioning methods have been employed for SC cavities, a fully established technique is yet to be determined. To address this situation, a relatively simple conditioning method was implemented at RIKEN. The proposed method uses high-voltage pulsed power and imposes a low load on the cavities.}},
}