EP0059238B1 - Tube à rayons X - Google Patents

Tube à rayons X Download PDF

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Publication number
EP0059238B1
EP0059238B1 EP81108428A EP81108428A EP0059238B1 EP 0059238 B1 EP0059238 B1 EP 0059238B1 EP 81108428 A EP81108428 A EP 81108428A EP 81108428 A EP81108428 A EP 81108428A EP 0059238 B1 EP0059238 B1 EP 0059238B1
Authority
EP
European Patent Office
Prior art keywords
tube
anode
screen
cathode
potential
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
Application number
EP81108428A
Other languages
German (de)
English (en)
Other versions
EP0059238A1 (fr
Inventor
Rudolf Dipl.-Phys. Friedel
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT81108428T priority Critical patent/ATE17802T1/de
Publication of EP0059238A1 publication Critical patent/EP0059238A1/fr
Application granted granted Critical
Publication of EP0059238B1 publication Critical patent/EP0059238B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/16—Vessels; Containers; Shields associated therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/16—Vessels
    • H01J2235/165—Shielding arrangements
    • H01J2235/168—Shielding arrangements against charged particles

Definitions

  • the tube housing and the shield were at the same potential, so that a breakdown through the glass tube bulb was largely prevented.
  • the shielding caught electrons, which led to a deterioration in the achievable X-ray beam.
  • the shielding which is inevitably thermally largely insulated with this design, is heated to an impermissibly high level.
  • the object of the invention is to enable an x-ray tube according to the preamble of claim 1 in addition to an improvement in the dielectric strength and a manufacturing-friendly structure focal near blanking and to achieve increased anode load capacity.
  • This object is achieved according to the invention by the measures specified in the characterizing part of claim 1.

Landscapes

  • X-Ray Techniques (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Radiation-Therapy Devices (AREA)
  • Tires In General (AREA)

Claims (5)

1. Tube à rayons X comportant un blindage entourant latéralement l'espace de décharge situé entre l'anode et la cathode, caractérisé en ce qu'il est prévu des moyens grâce auxquels le blindage (11) est maintenu à un potentiel supérieur à la moitié du potentiel d'anode et inférieur au potentiel total d'anode.
2. Tube à rayons X selon la revendication 1, caractérisé par le fait que le blindage entoure l'espace de décharge en comportant également des parties s'étendant suivant la direction radiale.
3. Tube à rayons X suivant la revendication 1, caractérisé par le fait que le blindage (11) comporte un support qui s'accroche sur une partie annulaire (2) disposée concentriquement par rapport à l'axe du tube et qui est constitué en un métal et jouxte, d'un côté, une partie isolante (3) qui porte l'ensemble cathodique (4), et de l'autre côté, une partie isolante (5) qui porte l'ensemble anodique (6).
4. Tube suivant la revendication 3, caractérisé par le fait que les parties isolantes sont constituées par du verre.
5. Tube suivant la revendication 1, caractérisé par le fait que le blindage (11) et l'anneau (2) sont constitués en un matériau conduisant bien la chaleur.
EP81108428A 1981-03-02 1981-10-16 Tube à rayons X Expired EP0059238B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81108428T ATE17802T1 (de) 1981-03-02 1981-10-16 Roentgenroehre.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813107949 DE3107949A1 (de) 1981-03-02 1981-03-02 Roentgenroehre
DE3107949 1981-03-02

Publications (2)

Publication Number Publication Date
EP0059238A1 EP0059238A1 (fr) 1982-09-08
EP0059238B1 true EP0059238B1 (fr) 1986-01-29

Family

ID=6126181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81108428A Expired EP0059238B1 (fr) 1981-03-02 1981-10-16 Tube à rayons X

Country Status (4)

Country Link
US (1) US4468802A (fr)
EP (1) EP0059238B1 (fr)
AT (1) ATE17802T1 (fr)
DE (2) DE3107949A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008020163A1 (de) 2008-04-22 2009-10-29 Siemens Aktiengesellschaft Kathode

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US5056126A (en) * 1987-11-30 1991-10-08 Medical Electronic Imaging Corporation Air cooled metal ceramic x-ray tube construction
US4964148A (en) * 1987-11-30 1990-10-16 Meicor, Inc. Air cooled metal ceramic x-ray tube construction
US5136625A (en) * 1991-10-18 1992-08-04 Varian Associates, Inc. Metal center x-ray tube
US5384820A (en) * 1992-01-06 1995-01-24 Picker International, Inc. Journal bearing and radiation shield for rotating housing and anode/stationary cathode X-ray tubes
DE4429910B4 (de) * 1994-01-11 2006-06-29 Siemens Ag Röntgenröhre mit Abschirmteil
GB9519715D0 (en) * 1995-09-27 1995-11-29 Kevex X Ray Inc X-ray tube
DE19542438C1 (de) * 1995-11-14 1996-11-28 Siemens Ag Röntgenröhre
DE19627025C2 (de) * 1996-07-04 1998-05-20 Siemens Ag Röntgenröhre
US6619842B1 (en) * 1997-08-29 2003-09-16 Varian Medical Systems, Inc. X-ray tube and method of manufacture
US6005918A (en) * 1997-12-19 1999-12-21 Picker International, Inc. X-ray tube window heat shield
DE19842467A1 (de) * 1998-09-16 2000-03-23 Siemens Ag Miniaturisierte Röntgenröhre
US7079624B1 (en) 2000-01-26 2006-07-18 Varian Medical Systems, Inc. X-Ray tube and method of manufacture
US6749337B1 (en) * 2000-01-26 2004-06-15 Varian Medical Systems, Inc. X-ray tube and method of manufacture
AU2001296611A1 (en) * 2000-10-23 2002-05-06 Varian Medical Systems, Inc. X-ray tube and method of manufacture
US6570962B1 (en) * 2002-01-30 2003-05-27 Koninklijke Philips Electronics N.V. X-ray tube envelope with integral corona shield
US7209546B1 (en) 2002-04-15 2007-04-24 Varian Medical Systems Technologies, Inc. Apparatus and method for applying an absorptive coating to an x-ray tube
US8275091B2 (en) 2002-07-23 2012-09-25 Rapiscan Systems, Inc. Compact mobile cargo scanning system
US7963695B2 (en) 2002-07-23 2011-06-21 Rapiscan Systems, Inc. Rotatable boom cargo scanning system
US9208988B2 (en) 2005-10-25 2015-12-08 Rapiscan Systems, Inc. Graphite backscattered electron shield for use in an X-ray tube
GB0309379D0 (en) * 2003-04-25 2003-06-04 Cxr Ltd X-ray scanning
US10483077B2 (en) 2003-04-25 2019-11-19 Rapiscan Systems, Inc. X-ray sources having reduced electron scattering
US9113839B2 (en) 2003-04-25 2015-08-25 Rapiscon Systems, Inc. X-ray inspection system and method
GB0309374D0 (en) * 2003-04-25 2003-06-04 Cxr Ltd X-ray sources
GB0309383D0 (en) 2003-04-25 2003-06-04 Cxr Ltd X-ray tube electron sources
GB0525593D0 (en) 2005-12-16 2006-01-25 Cxr Ltd X-ray tomography inspection systems
US8837669B2 (en) 2003-04-25 2014-09-16 Rapiscan Systems, Inc. X-ray scanning system
GB0812864D0 (en) 2008-07-15 2008-08-20 Cxr Ltd Coolign anode
US8451974B2 (en) 2003-04-25 2013-05-28 Rapiscan Systems, Inc. X-ray tomographic inspection system for the identification of specific target items
GB0309387D0 (en) * 2003-04-25 2003-06-04 Cxr Ltd X-Ray scanning
US7949101B2 (en) 2005-12-16 2011-05-24 Rapiscan Systems, Inc. X-ray scanners and X-ray sources therefor
US8223919B2 (en) 2003-04-25 2012-07-17 Rapiscan Systems, Inc. X-ray tomographic inspection systems for the identification of specific target items
US8243876B2 (en) 2003-04-25 2012-08-14 Rapiscan Systems, Inc. X-ray scanners
GB0309371D0 (en) * 2003-04-25 2003-06-04 Cxr Ltd X-Ray tubes
US8094784B2 (en) 2003-04-25 2012-01-10 Rapiscan Systems, Inc. X-ray sources
WO2004107384A2 (fr) * 2003-05-30 2004-12-09 Koninklijke Philips Electronics N.V. Retrodiffusion amelioree d'electrons dans des tubes a rayons x
US6928141B2 (en) 2003-06-20 2005-08-09 Rapiscan, Inc. Relocatable X-ray imaging system and method for inspecting commercial vehicles and cargo containers
US7471764B2 (en) 2005-04-15 2008-12-30 Rapiscan Security Products, Inc. X-ray imaging system having improved weather resistance
US9046465B2 (en) 2011-02-24 2015-06-02 Rapiscan Systems, Inc. Optimization of the source firing pattern for X-ray scanning systems
GB0803641D0 (en) 2008-02-28 2008-04-02 Rapiscan Security Products Inc Scanning systems
GB0803644D0 (en) 2008-02-28 2008-04-02 Rapiscan Security Products Inc Scanning systems
US20090284124A1 (en) * 2008-04-22 2009-11-19 Wolfgang Kutschera Cathode composed of materials with different electron works functions
GB0809110D0 (en) 2008-05-20 2008-06-25 Rapiscan Security Products Inc Gantry scanner systems
DE102008038569A1 (de) * 2008-08-20 2010-02-25 Siemens Aktiengesellschaft Röntgenröhre
GB0816823D0 (en) 2008-09-13 2008-10-22 Cxr Ltd X-ray tubes
GB0901338D0 (en) 2009-01-28 2009-03-11 Cxr Ltd X-Ray tube electron sources
US9218933B2 (en) 2011-06-09 2015-12-22 Rapidscan Systems, Inc. Low-dose radiographic imaging system
KR102167245B1 (ko) 2013-01-31 2020-10-19 라피스캔 시스템스, 인코포레이티드 이동식 보안검사시스템
JP1528933S (fr) * 2014-09-25 2015-07-13
JP1529492S (fr) * 2014-09-25 2015-07-21
JP1528466S (fr) * 2014-09-25 2015-07-13
JP1528934S (fr) * 2014-09-25 2015-07-13
JP1528467S (fr) * 2014-09-25 2015-07-13
JP1528468S (fr) * 2014-09-25 2015-07-13
US11551903B2 (en) 2020-06-25 2023-01-10 American Science And Engineering, Inc. Devices and methods for dissipating heat from an anode of an x-ray tube assembly

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AT134371B (de) * 1930-10-14 1933-07-25 Philips Nv Röntgenröhre.
DE612213C (de) * 1931-07-26 1935-04-16 Mueller C H F Ag Entladungsgefaess, insbesondere Roentgenroehre, mit reiner Elektronenentladung
US2952790A (en) * 1957-07-15 1960-09-13 Raytheon Co X-ray tubes
US3916202A (en) * 1974-05-03 1975-10-28 Gen Electric Lens-grid system for electron tubes
US4309637A (en) * 1979-11-13 1982-01-05 Emi Limited Rotating anode X-ray tube

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Fortschritte auf dem Gebiete der Röntgenstrahlen, Band XXXIII Heft 4, Seiten 575, 576 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008020163A1 (de) 2008-04-22 2009-10-29 Siemens Aktiengesellschaft Kathode

Also Published As

Publication number Publication date
DE3107949A1 (de) 1982-09-16
DE3173649D1 (en) 1986-03-13
EP0059238A1 (fr) 1982-09-08
ATE17802T1 (de) 1986-02-15
US4468802A (en) 1984-08-28

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