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Patent Searching and Data


Title:
X-RAY TUBE AND X-RAY GENERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/117172
Kind Code:
A1
Abstract:
In order to provide an X-ray tube and an X-ray generation device that enable high-sensitivity detection of an initial degree of vacuum and that make it possible to preemptively prevent abnormal electrical discharge and monitor lifetime, this X-ray tube is provided with: an envelope (11) for retaining an interior at a predetermined degree of vacuum; an electron-emitting filament (12) and a focusing electrode (13) that are provided inside the envelope (11); and an X-ray-generating target (15) that is provided inside the envelope (11), opposite the filament (12) and the focusing electrode (13). The envelope (11) has an envelope body (11a) and an X-ray window section (16) having an X-ray transmittance and an electrical conductivity higher than those of the envelope body. One of the X-ray window section (16) and a positive electrode (14) is set to a lower potential than the other of the positive electrode (14) and the X-ray window section (16), and one of the X-ray window section and the positive electrode is set to a lower potential than the negative electrode filament (12) and the focusing electrode (13), thereby making it possible to detect an ion current (Ii) and/or an electron current (Ie) via the X-ray window section (16) or the positive electrode (14).

Inventors:
KOBA, Hiroyuki (5-1-1, Onna, Atsugi-sh, Kanagawa 32, 〒2430032, JP)
MORIYA, Jyunichi (5-1-1, Onna, Atsugi-sh, Kanagawa 32, 〒2430032, JP)
TAKAHASHI, Yoshifumi (5-1-1, Onna, Atsugi-sh, Kanagawa 32, 〒2430032, JP)
KURISU, Hiroki (Yamaguchi University 16-1, Tokiwadai 2-choume, Ube-sh, Yamaguchi 11, 〒7558611, JP)
Application Number:
JP2018/045573
Publication Date:
June 20, 2019
Filing Date:
December 11, 2018
Export Citation:
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Assignee:
ANRITSU INFIVIS CO., LTD. (5-1-1, Onna Atsugi-sh, Kanagawa 32, 〒2430032, JP)
YAMAGUCHI UNIVERSITY (1677-1, Yoshida Yamaguchi-sh, Yamaguchi 11, 〒7538511, JP)
International Classes:
H01J35/20; H01J35/00; H05G1/00; H05G1/26
Foreign References:
JP2016146288A2016-08-12
JP2017123246A2017-07-13
JPS62160454U1987-10-12
JP2001145625A2001-05-29
JPS55119397A1980-09-13
JP2014002023A2014-01-09
JP2007042516A2007-02-15
Attorney, Agent or Firm:
ARIGA, Gunichiro et al. (4-16-3, Yotsuya Shinjuku-Ku Tokyo, 04, 〒1600004, JP)
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