GB2018507A – A single use X-ray source
– Google Patents
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
1978-04-11
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.)
1978-04-11
Filing date
1979-04-06
Publication date
1979-10-17
1979-04-06
Application filed by Neratoom BV
filed
Critical
Neratoom BV
1979-10-17
Publication of GB2018507A
publication
Critical
patent/GB2018507A/en
1982-05-06
Application granted
granted
Critical
1982-05-06
Publication of GB2018507B
publication
Critical
patent/GB2018507B/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
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.
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 & 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
1978
1978-04-11
NL
NL7803837A
patent/NL7803837A/en
not_active
Application Discontinuation
1979
1979-04-04
DE
DE19792913487
patent/DE2913487A1/en
not_active
Withdrawn
1979-04-06
GB
GB7912284A
patent/GB2018507B/en
not_active
Expired
1979-04-11
JP
JP4313679A
patent/JPS54137993A/en
active
Pending
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 & 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
NL7803837A
(en)
1979-10-15
GB2018507B
(en)
1982-05-06
DE2913487A1
(en)
1979-10-25
JPS54137993A
(en)
1979-10-26
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Legal Events
Date
Code
Title
Description
1983-11-23
PCNP
Patent ceased through non-payment of renewal fee
