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 (JP)
IMAZU AKIKO (JP)
IMAZU AKIKO (JP)
Application Number:
PCT/JP2016/056976
Publication Date:
September 14, 2017
Filing Date:
March 07, 2016
Export Citation:
Assignee:
SHIMADZU CORP (JP)
International Classes:
G01N27/62; H01J49/06; H01J49/40
Domestic Patent References:
| WO2003065763A1 | 2003-08-07 |
Foreign References:
| JP2013531342A | 2013-08-01 | |||
| US7358593B2 | 2008-04-15 |
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 (JP)
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