JPS5713658A - Thermion emitting structured body for x-ray tube - Google Patents

Thermion emitting structured body for x-ray tube

Info

Publication number
JPS5713658A
JPS5713658A JP8787480A JP8787480A JPS5713658A JP S5713658 A JPS5713658 A JP S5713658A JP 8787480 A JP8787480 A JP 8787480A JP 8787480 A JP8787480 A JP 8787480A JP S5713658 A JPS5713658 A JP S5713658A
Authority
JP
Japan
Prior art keywords
shape
structured body
ray tube
thermion emitting
homogeneous
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8787480A
Other languages
Japanese (ja)
Other versions
JPS6346952B2 (en
Inventor
Tadashi Hayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8787480A priority Critical patent/JPS5713658A/en
Publication of JPS5713658A publication Critical patent/JPS5713658A/en
Publication of JPS6346952B2 publication Critical patent/JPS6346952B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/06—Cathodes
    • H01J35/064—Details of the emitter, e.g. material or structure

Abstract

PURPOSE:To enable a stable focus with both clear outline and homogeneous electron density to be obtained, by forming a thin beltlike material made of a heat-proof metal and haing homogeneous width and thickness into a -shape, and using the center of the -shape for thermionic emission, and the ends of the -shape for the support of the -shape structured body. CONSTITUTION:Thin beltlike material which is made of a heat-proof metal and has a homogeneous width and thickness is formed into a -shape, which consists of a thermion emitting part 6 in its center, and supported fixed parts 7 at its ends. By the means mentioned above, the material loss can be decreased, and the work can be performed easily. In addition, for the purpose of preventing any sag and warping of the part 6 which might be caused due to high temperature, snap plates 8 used as a spring are provided on both sides of each of the parts 7, and each end of the -form material and the snap plates 8 are supported by and fixed to an anchor 9. Consequently, a structured body for an X-ray tube having a rectangular thermion emitting surface with a good focus, can be made in a high material yield.
JP8787480A 1980-06-30 1980-06-30 Thermion emitting structured body for x-ray tube Granted JPS5713658A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8787480A JPS5713658A (en) 1980-06-30 1980-06-30 Thermion emitting structured body for x-ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8787480A JPS5713658A (en) 1980-06-30 1980-06-30 Thermion emitting structured body for x-ray tube

Publications (2)

Publication Number Publication Date
JPS5713658A true JPS5713658A (en) 1982-01-23
JPS6346952B2 JPS6346952B2 (en) 1988-09-19

Family

ID=13927008

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8787480A Granted JPS5713658A (en) 1980-06-30 1980-06-30 Thermion emitting structured body for x-ray tube

Country Status (1)

Country Link
JP (1) JPS5713658A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61128451A (en) * 1984-11-27 1986-06-16 Toshiba Corp X ray tube device
WO2014041639A1 (en) * 2012-09-12 2014-03-20 株式会社島津製作所 X-ray tube device and method for using x-ray tube device
EP2721629A1 (en) * 2011-06-16 2014-04-23 Varian Medical Systems Inc. Electron emitters for x-ray tubes
JP2017033733A (en) * 2015-07-31 2017-02-09 株式会社島津製作所 Manufacturing method of cathode, cathode and x-ray tube device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61128451A (en) * 1984-11-27 1986-06-16 Toshiba Corp X ray tube device
JPH0418419B2 (en) * 1984-11-27 1992-03-27 Tokyo Shibaura Electric Co
EP2721629A1 (en) * 2011-06-16 2014-04-23 Varian Medical Systems Inc. Electron emitters for x-ray tubes
JP2014519694A (en) * 2011-06-16 2014-08-14 バリアン・メディカル・システムズ・インコーポレイテッド Electron emitting device for X-ray tube
EP2721629A4 (en) * 2011-06-16 2014-11-05 Varian Med Sys Inc Electron emitters for x-ray tubes
US9466455B2 (en) 2011-06-16 2016-10-11 Varian Medical Systems, Inc. Electron emitters for x-ray tubes
WO2014041639A1 (en) * 2012-09-12 2014-03-20 株式会社島津製作所 X-ray tube device and method for using x-ray tube device
US9887061B2 (en) 2012-09-12 2018-02-06 Shimadzu Corporation X-ray tube device and method for using X-ray tube device
JP2017033733A (en) * 2015-07-31 2017-02-09 株式会社島津製作所 Manufacturing method of cathode, cathode and x-ray tube device

Also Published As

Publication number Publication date
JPS6346952B2 (en) 1988-09-19

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