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Title: QMAを用いたTDS測定装置における水素の定量分析
Other Titles: Quantitative Analysis of Hydrogen in QMA-TDS System
Authors: 古谷, 吉男 / 吉田, 慎太郎 / 里, 慎也ほか
Authors (alternative): Furuya, Yoshio / Yoshida, Shintaro / Sato, Shinya
Issue Date: Mar-1999
Citation: 長崎大学教育学部紀要. 教育科学. vol.63, p.1-14; 2002 / 長崎大学教育学部紀要. 自然科学. vol.60, p.23-33; 1999
Abstract: Thermal desorption spectroscopy (TDS) attached with a quadrupole mass analyzer (QMA) is one of available analyzing systems for investigating the thermal behavior of hydrogen interacting with materials. In the present work, a QMA-TDS analyzing system has been set up so as to measure the hydrogen desorbed from specimen under the ultra-high vacuum condition. The sensitivity in quantitative analyses with this system was examined by using two hydrogen sources, hydrogen gas and titanium hydride (TiH_2) powder, which were known in quantity. As the result, the characterizing values between hydrogen molecules and H_2^+ ion current detected by QMA in this system are 7.18×(10)^<20>H_2/(A・sec) for hydrogen gas and 9.91×(10)^<20>H_2(A・sec) for TiH_2 powder, respectively. The proportionality of H_2^+ ion current to hydrogen partial pressure was also verified under some different conditions of the hydrogen-leakage or desorption rate.
URI: http://hdl.handle.net/10069/6064
ISSN: 13451359
Type: Departmental Bulletin Paper
Appears in Collections:No. 60

Citable URI : http://hdl.handle.net/10069/6064

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