X-RAY TUBE AND X-RAY GENERATION DEVICE

WIPO Patent Application WO/2019/117172

A1

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).

KOBA HIROYUKI (JP)
MORIYA JYUNICHI (JP)
TAKAHASHI YOSHIFUMI (JP)
KURISU HIROKI (JP)

PCT/JP2018/045573

June 20, 2019

December 11, 2018

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ANRITSU INFIVIS CO LTD (JP)
UNIV YAMAGUCHI (JP)

H01J35/20; H01J35/00; H05G1/00; H05G1/26

JP2016146288A	2016-08-12
JP2017123246A	2017-07-13
JPS62160454U	1987-10-12
JP2001145625A	2001-05-29
JPS55119397A	1980-09-13
JP2014002023A	2014-01-09
JP2007042516A	2007-02-15

ARIGA, Gunichiro et al. (JP)

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