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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국진공학회(ASCT) Journal of Korean Vacuum Science & Technology Journal of Korean Vacuum Science & Technology Vol.7 No.2
- 발행연도
- 2003.12
- 수록면
- 27 - 32 (6page)
이용수
초록· 키워드
오류제보하기
A large cryo-pumping system composed of 4 cryosorption pumps was designed and manufactured to satisfy the pressure requirements of the NBI test stand. The cryosorption pump consists of a thermal shield/baffle assembly and a cryopanel coated with activated carbon granules. The thermal shield is cooled by liquid nitrogen, and the cryopanel by a commercial helium refrigerator. The operation characteristics and vacuum performance of the cryosorption pump were investigated. The cooling down time of the cryopanel to 20 K was about 6 hours with a liquid nitrogen consumption rate of about 35 L/hr. The maximum pumping speed of the cryosorption pump for the hydrogen gas measured by the steady pressure method was about 90,000 L/s.
목차
Abstract
1. Introduction
2. Structure of the cryosorption pump
3. Pumping speed of the cryosorption pump
4. Pumping capacity
5. Performance test and results
6. Conclusions
References
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UCI(KEPA) : I410-ECN-0101-2019-420-001258845