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@InProceedings{gao:napac2019-weplm56,
author = {J. Gao and A. Lajoie and F. Marti},
title = {{Development of Helium Gas Charge Stripper with Plasma Window}},
booktitle = {Proc. NAPAC'19},
pages = {720--723},
paper = {WEPLM56},
language = {english},
keywords = {plasma, vacuum, cathode, heavy-ion, experiment},
venue = {Lansing, MI, USA},
series = {North American Particle Accelerator Conference},
number = {4},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {10},
year = {2019},
issn = {2673-7000},
isbn = {978-3-95450-223-3},
doi = {10.18429/JACoW-NAPAC2019-WEPLM56},
url = {http://jacow.org/napac2019/papers/weplm56.pdf},
note = {https://doi.org/10.18429/JACoW-NAPAC2019-WEPLM56},
abstract = {The cascade arc discharge, also called "plasma window", was suggested to be used as an interface to provide an effective separation between atmosphere and vacuum [1]. As suggested by Thieberger and Hershcovitch at Facility for Rare Isotope Beams (FRIB) workshop in 2009, helium plasma window offers an alternative to a large pumping system used in helium gas charge stripper for high intensity heavy ion beam accelerator facilities [2]. In this report, we present the recent progress on the development of helium plasma window with both 6mm and 10 mm diameter apparatus [3]. The size dependent sealing performance of helium plasma window has been investigated. Various diagnostics tools have been developed to improve our understanding of underlying physics. Over 140 hours continuous unattended operation of helium plasma window in recirculating gas system has been achieved, which suggests our system to be a feasible charge stripper solution for heavy ion beam accelerators. We also discuss anticipated future developments of plasma window.},
}