Title:
X-RAY TUBE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/049055
Kind Code:
A1
Abstract:
An X-ray tube device according to an embodiment comprises: a negative electrode that discharges electrons; a positive electrode target that generates an X-ray by being impacted with electrons discharged from the negative electrode; a first tube part; a second tube part that forms a flow passage for a cooling liquid together with the first tube part; and a protective film. The protective film covers the inner surface of the first tube part and is formed of hard gold.
Inventors:
WATANABE TOSHIMI (JP)
YOSHIZAWA HIROBUMI (JP)
SONE JUNKI (JP)
YOSHIZAWA HIROBUMI (JP)
SONE JUNKI (JP)
Application Number:
PCT/JP2020/003100
Publication Date:
March 18, 2021
Filing Date:
January 29, 2020
Export Citation:
Assignee:
CANON ELECTRON TUBES & DEVICES CO LTD (JP)
International Classes:
H01J35/12
Foreign References:
| JPH06162974A | 1994-06-10 | |||
| US20190096625A1 | 2019-03-28 | |||
| JPH06162974A | 1994-06-10 |
Attorney, Agent or Firm:
S & S INTERNATIONAL PPC (JP)
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