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GB2018507A - A single use X-ray source - Google Patents

A single use X-ray source

Info

Publication number
GB2018507A
GB2018507A GB7912284A GB7912284A GB2018507A GB 2018507 A GB2018507 A GB 2018507A GB 7912284 A GB7912284 A GB 7912284A GB 7912284 A GB7912284 A GB 7912284A GB 2018507 A GB2018507 A GB 2018507A
Authority
GB
United Kingdom
Prior art keywords
specified
target
electrode
cathode
radiation
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
GB7912284A
Other versions
GB2018507B (en
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.)
Neratoom BV
Original Assignee
Neratoom BV
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 Neratoom BV filed Critical Neratoom BV
Publication of GB2018507A publication Critical patent/GB2018507A/en
Application granted granted Critical
Publication of GB2018507B publication Critical patent/GB2018507B/en
Expired 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
    • H01J35/14—Arrangements for concentrating, focusing, or directing the cathode ray
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/22—X-ray tubes specially designed for passing a very high current for a very short time, e.g. for flash operation

Landscapes

  • X-Ray Techniques (AREA)

Abstract

A single-use X-ray tube having an evacuated envelope contains a cathode filament, consisting of a sharply curved metal wire having a thinned portion negatively biassed Wehnelt type electrode 4, an anode 11 and a target 13. The tube provides high intensity low energy X-radiation for specified applications. Electrode 4 ensures that upon slight continuous emission followed by a strong emission increase due to melting and evaporation of the cathode, the optical properties of the gun do not change. The target may enclosed by a light metal electrode 14 with an internal C lining and aperture to counter scattered X-radiation due to back scattered electrons. Be, Al and C electrodes are specified. The electron beam may be scanned. A magnetic circuit includes metal sleeves 16, 17, and flange 18 with e.m. coil 19, or permanent magnets (21) may be used (Fig. 2, not shown). Filament dimensions are specified. The target current may be monitored and used for automatic astigmatism, focus and alignment correction. <IMAGE>
GB7912284A 1978-04-11 1979-04-06 Single use x-ray source Expired GB2018507B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7803837A NL7803837A (en) 1978-04-11 1978-04-11 DEVICE FOR GENERATING RAY RAYS.

Publications (2)

Publication Number Publication Date
GB2018507A true GB2018507A (en) 1979-10-17
GB2018507B GB2018507B (en) 1982-05-06

Family

ID=19830630

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7912284A Expired GB2018507B (en) 1978-04-11 1979-04-06 Single use x-ray source

Country Status (4)

Country Link
JP (1) JPS54137993A (en)
DE (1) DE2913487A1 (en)
GB (1) GB2018507B (en)
NL (1) NL7803837A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0096824A1 (en) * 1982-06-16 1983-12-28 feinfocus Verwaltungs GmbH &amp; Co. KG Fine focus X-ray tube and method for the production of a finely focused electron emission from an X-ray filament cathode
GB2122806A (en) * 1982-06-17 1984-01-18 Thor Cryogenics Ltd X-ray source apparatus
WO2008080624A1 (en) * 2006-12-28 2008-07-10 Yxlon International Feinfocus Gmbh X-ray tube and method for checking a target by scanning with an electron beam

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5721681B2 (en) * 2012-10-02 2015-05-20 双葉電子工業株式会社 X-ray tube
JP6264145B2 (en) * 2014-03-28 2018-01-24 株式会社島津製作所 X-ray generator
CN112543988A (en) * 2018-09-14 2021-03-23 康麦特有限公司 Assembly or electron capture sleeve for an X-ray tube and X-ray tube comprising such a device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0096824A1 (en) * 1982-06-16 1983-12-28 feinfocus Verwaltungs GmbH &amp; Co. KG Fine focus X-ray tube and method for the production of a finely focused electron emission from an X-ray filament cathode
GB2122806A (en) * 1982-06-17 1984-01-18 Thor Cryogenics Ltd X-ray source apparatus
US4713833A (en) * 1982-06-17 1987-12-15 Kevex Corporation X-ray source apparatus
WO2008080624A1 (en) * 2006-12-28 2008-07-10 Yxlon International Feinfocus Gmbh X-ray tube and method for checking a target by scanning with an electron beam
US8360640B2 (en) 2006-12-28 2013-01-29 Yxlon International Gmbh X-ray tube and method for examining a target by scanning with an electron beam

Also Published As

Publication number Publication date
DE2913487A1 (en) 1979-10-25
GB2018507B (en) 1982-05-06
JPS54137993A (en) 1979-10-26
NL7803837A (en) 1979-10-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee