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GB2437379B - X-Ray tube electron sources - Google Patents

X-Ray tube electron sources

Info

Publication number
GB2437379B
GB2437379B GB0705710A GB0705710A GB2437379B GB 2437379 B GB2437379 B GB 2437379B GB 0705710 A GB0705710 A GB 0705710A GB 0705710 A GB0705710 A GB 0705710A GB 2437379 B GB2437379 B GB 2437379B
Authority
GB
United Kingdom
Prior art keywords
ray tube
electron sources
tube electron
sources
ray
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.)
Expired - Lifetime
Application number
GB0705710A
Other versions
GB2437379A (en
GB0705710D0 (en
Inventor
Edward James Morton
Russell David Luggar
Paul De Antonis
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.)
CXR Ltd
Original Assignee
CXR 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
Priority claimed from GBGB0309383.8A external-priority patent/GB0309383D0/en
Application filed by CXR Ltd filed Critical CXR Ltd
Publication of GB0705710D0 publication Critical patent/GB0705710D0/en
Publication of GB2437379A publication Critical patent/GB2437379A/en
Application granted granted Critical
Publication of GB2437379B publication Critical patent/GB2437379B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • H01J35/066—Details of electron optical components, e.g. cathode cups
    • 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
    • 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
    • H01J35/153—Spot position control
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/06—Cathode assembly
    • H01J2235/068—Multi-cathode assembly
GB0705710A 2003-04-25 2004-04-23 X-Ray tube electron sources Expired - Lifetime GB2437379B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0309383.8A GB0309383D0 (en) 2003-04-25 2003-04-25 X-ray tube electron sources
GB0520908A GB2418529B (en) 2003-04-25 2004-04-23 X-ray tube electron sources

Publications (3)

Publication Number Publication Date
GB0705710D0 GB0705710D0 (en) 2007-05-02
GB2437379A GB2437379A (en) 2007-10-24
GB2437379B true GB2437379B (en) 2008-01-16

Family

ID=38512544

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0705710A Expired - Lifetime GB2437379B (en) 2003-04-25 2004-04-23 X-Ray tube electron sources

Country Status (1)

Country Link
GB (1) GB2437379B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010058330A1 (en) * 2008-11-21 2010-05-27 Philips Intellectual Property & Standards Gmbh X-ray tube with switchable grid for gating of electron beam current during voltage breakdown

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10211196A (en) * 1997-01-31 1998-08-11 Olympus Optical Co Ltd X-ray ct scanner
US6018562A (en) * 1995-11-13 2000-01-25 The United States Of America As Represented By The Secretary Of The Army Apparatus and method for automatic recognition of concealed objects using multiple energy computed tomography
US6183139B1 (en) * 1998-10-06 2001-02-06 Cardiac Mariners, Inc. X-ray scanning method and apparatus
US6324249B1 (en) * 2001-03-21 2001-11-27 Agilent Technologies, Inc. Electronic planar laminography system and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6018562A (en) * 1995-11-13 2000-01-25 The United States Of America As Represented By The Secretary Of The Army Apparatus and method for automatic recognition of concealed objects using multiple energy computed tomography
JPH10211196A (en) * 1997-01-31 1998-08-11 Olympus Optical Co Ltd X-ray ct scanner
US6183139B1 (en) * 1998-10-06 2001-02-06 Cardiac Mariners, Inc. X-ray scanning method and apparatus
US6324249B1 (en) * 2001-03-21 2001-11-27 Agilent Technologies, Inc. Electronic planar laminography system and method

Also Published As

Publication number Publication date
GB2437379A (en) 2007-10-24
GB0705710D0 (en) 2007-05-02

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20230330 AND 20230405

PE20 Patent expired after termination of 20 years

Expiry date: 20240422