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Title:
ION GATE AND ION MOBILITY SPECTROMETER
Document Type and Number:
WIPO Patent Application WO/2017/154073
Kind Code:
A1
Abstract:
In the present invention, to prevent an ion gate known as a BN gate from shorting during use in a high-temperature environment because of grid loosening resulting from differences in the amounts of thermal expansion of a substrate and electrode, a substrate that forms a pair of comb electrodes 21, 22 is made to be a structure in which both ends of two insulating substrates 11, 12 are connected with a space therebetween by connection members 13, 14. The space surrounded by these four members is made to be an opening 15 for ion passage. Each of the linear electrodes A of the comb electrodes 21, 22 crosses over the two insulating substrates 11, 12 and has both ends fixed thereto. The two connection members 13, 14 are formed from a material having the same coefficient of thermal expansion as the coefficient of thermal expansion of the linear electrode A.

Inventors:
YASUNO, Motohide (1 Nishinokyo-Kuwabara-cho, Nakagyo-ku, Kyoto-sh, Kyoto 11, 〒6048511, JP)
IMAZU, Akiko (1 Nishinokyo-Kuwabara-cho, Nakagyo-ku, Kyoto-sh, Kyoto 11, 〒6048511, JP)
Application Number:
JP2016/056976
Publication Date:
September 14, 2017
Filing Date:
March 07, 2016
Export Citation:
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Assignee:
SHIMADZU CORPORATION (1 Nishinokyo-Kuwabara-cho, Nakagyo-ku Kyoto-sh, Kyoto 11, 〒6048511, JP)
International Classes:
G01N27/62; H01J49/06; H01J49/40
Domestic Patent References:
WO2003065763A12003-08-07
Foreign References:
JP2013531342A2013-08-01
US7358593B22008-04-15
Other References:
T.BRUNNER: "A large Bradbury Nielsen ion gate with flexible wire spacing based on photo- etched stainless steel grids and its characterization applying symmetric and asymmetric potentials", INTERNATIONAL JOURNAL OF MASS SPECTROMETRY, vol. 309, 2012, pages 97 - 103, XP080516621
Attorney, Agent or Firm:
KASHIMA, Yoshio (409 Yuni Higashi-Umeda 7-2, Minami Ogi-machi, Kita-ku, Osaka-sh, Osaka 52, 〒5300052, JP)
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