Title

HT-7超導托卡馬克裝置真空系統參數的標定及分析

Translated Titles

Calibration and Analysis of HT-7 Vacuum System

Authors

胡建生(Jian-Sheng Hu);辜學茂(Xue-Mao Gu);王小明(Xiao-Ming Wang);羅南昌(Nan-Chang Luo);HT-7真空組(HT-7 Vacuum Group)

Key Words

標定 ; 真空 ; 抽速 ; HT-7超導托卡馬克 ; Calibration ; Vacuum ; Pumping speed ; HT-7 superconductor Tokamak

PublicationName

真空科學與技術學報

Volume or Term/Year and Month of Publication

24卷2期(2004 / 04 / 20)

Page #

149 - 153

Content Language

簡體中文

Chinese Abstract

主要介紹HT-7超導托卡馬克裝置真空系統參數的標定和分析。在有無低溫泵工作條件下,分別測量了HT-7真空系統對氫氣、氘氣、氦氣和氮氣的抽速曲線。分析包括器壁吸附等因素對HT-7真空系統不同氣體抽速的影響。同時簡單分析了在不同情況下,裝置真空分佈情況,為實現HT-7裝置氣體平衡提供參考。討論和測量如何利用質譜計來分氦和氘。通過氣體平衡比較準確的測量了裝置體積。

English Abstract

Calibration and analysis of the vacuum system of HT-7 superconductor Tokamak were discussed. Pumping speeds of various gases, including hydrogen, deuterium, helium and nitrogen with or without cryogenic pumps, were measured, respectively. Influence of gases adsorption on their specific pumping speeds, such as hydrogen and deuterium adsorbed by solid surfaces of the walls and the graphite spacers in HT-7 inner vacuum system, was analyzed. The variations in the base pressure in different situations, at different locations of the whole vacuum system were tentatively evaluated to achieve better equilibrium of the gases for the HT-7 system. The feasibility of using quadropole mass spectroscopy to differentiate helium and deuterium was discussed. The total volume of HT-7 can be precisely measured when the gases reach equilibrium.

Topic Category 基礎與應用科學 > 物理
工程學 > 工程學總論
工程學 > 電機工程
工程學 > 化學工業