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Research Paper

Applied Science and Convergence Technology 2015; 24(5): 132-135

Published online September 30, 2015

https://doi.org/10.5757/ASCT.2015.24.5.132

Copyright © The Korean Vacuum Society.

Vacuum Test of Cavity with Liquid Nitrogen

Suk Choi, Gunn-Tae Park, and Heetae Kim*

Rare Isotope Science Project, Institute for Basic Science, Daejeon 34047, Korea

Correspondence to:Heetae Kim
kim_ht7@yahoo.com

Received: September 15, 2015; Accepted: September 30, 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Schematic of RAON vacuum system is introduced. Vacuum test for superconducting cavity with liquid nitrogen is performed. Schematic plan for RAON vacuum system is introduced and vacuum control system for superconducting cavity test is constructed. Vacuum pressure of cavity is shown as a function of pumping time. The temperature of cavity is shown as a function of cooling time. Outgassing species from cavity is also detected. Detailed experimental procedure is presented to test the cavity vacuum with liquid nitrogen.

Keywords: Cryogenic system, Vacuum system, Pump

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