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Gas desorption species and quantity from the hot cathode ionization gauges  

I. Arakawa (Department of Physics, Gakushuin University)
Publication Information
Journal of the Korean Vacuum Society / v.12, no.4, 2003 , pp. 201-206 More about this Journal
Abstract
A residual gas analyzer was used to study the outgassing behavior of stainless steel 304 chamber as a function of bake-out temperature up to $235 ^{\circ}C$ and to identify the gas species evolved during turn on and degassing of the three different types of hot cathode ionization gauges. It was found that $H_2O$, CO, and $H_2O$ were the dominent outgassing species in the vacuum chamber during bake-out but finally $H_2$ and CO(mass 28) persisted at room temperature. Dominant outgassing species were also $H_2$ and $H_2O$ while fuming on the ionizations and then $H_2$,$H_2O$ and CO were found to be the main species degassed gauges. It was appeared that the outgassing species and quantity were not agreed to the three different types of hot cathode ionization gauges.
Keywords
Outgassing; Vacuum; Bake-out; Hot cathode ionization gauge; RGA;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 /
[ 배석희;인상열;정광화;이영백;신용현 ] / 진공공학
2 /
[ 홍승수;정광화;신용현;임종연;이상균 ] / 한국진공학회지   과학기술학회마을
3 /
[ K.H.Chung;S.S.Hong;Y.H.Shin ] / Metrologia   ScienceOn
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[ F.Watanabe ] / Vacuum   ScienceOn
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[ H.Akimichi;T.Arai;I.Arakawa ] / J. Vacuum