EP0182637A3 - Tubes à rayons X - Google Patents

Tubes à rayons X Download PDF

Info

Publication number
EP0182637A3
EP0182637A3 EP85308364A EP85308364A EP0182637A3 EP 0182637 A3 EP0182637 A3 EP 0182637A3 EP 85308364 A EP85308364 A EP 85308364A EP 85308364 A EP85308364 A EP 85308364A EP 0182637 A3 EP0182637 A3 EP 0182637A3
Authority
EP
European Patent Office
Prior art keywords
anode
spot
spot region
ray tubes
rotation
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.)
Withdrawn
Application number
EP85308364A
Other languages
German (de)
English (en)
Other versions
EP0182637A2 (fr
Inventor
Avery D. Furbee
Viktor W. Pleil
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.)
Philips Nuclear Medicine Inc
Original Assignee
Picker International Inc
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 Picker International Inc filed Critical Picker International Inc
Publication of EP0182637A2 publication Critical patent/EP0182637A2/fr
Publication of EP0182637A3 publication Critical patent/EP0182637A3/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/24—Tubes wherein the point of impact of the cathode ray on the anode or anticathode is movable relative to the surface thereof
    • 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
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/52—Target size or shape; Direction of electron beam, e.g. in tubes with one anode and more than one cathode
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • X-Ray Techniques (AREA)
EP85308364A 1984-11-21 1985-11-18 Tubes à rayons X Withdrawn EP0182637A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US67365784A 1984-11-21 1984-11-21
US673657 1984-11-21

Publications (2)

Publication Number Publication Date
EP0182637A2 EP0182637A2 (fr) 1986-05-28
EP0182637A3 true EP0182637A3 (fr) 1987-06-03

Family

ID=24703566

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85308364A Withdrawn EP0182637A3 (fr) 1984-11-21 1985-11-18 Tubes à rayons X

Country Status (2)

Country Link
EP (1) EP0182637A3 (fr)
JP (1) JPS61179045A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2671229B1 (fr) * 1990-12-28 1993-03-19 Gen Electric Cgr Procede, tube et systeme pour eliminer une grille anti-diffusante fixe dans une image radiologique.
JP2004265606A (ja) 2003-01-21 2004-09-24 Toshiba Corp Ｘ線管装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3452203A (en) * 1965-08-31 1969-06-24 Tokyo Shibaura Electric Co Triode type x-ray tubes and method and apparatus for irradiating x-rays
GB1214083A (en) * 1967-04-19 1970-12-02 Tokyo Shibaura Electric Co X-ray tubes
US3649861A (en) * 1970-09-09 1972-03-14 Picker Corp Double focus x-ray tube
US3946261A (en) * 1975-01-03 1976-03-23 The Machlett Laboratories, Inc. Dual filament X-Ray tube
US4065689A (en) * 1974-11-29 1977-12-27 Picker Corporation Dual filament X-ray tube
DE2850583A1 (de) * 1978-11-22 1980-06-04 Philips Patentverwaltung Roentgenroehre mit zwei parallel nebeneinander angeordneten heizfaeden
US4315154A (en) * 1979-11-08 1982-02-09 Siemens Corporation Multiple focus X-ray generator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3452203A (en) * 1965-08-31 1969-06-24 Tokyo Shibaura Electric Co Triode type x-ray tubes and method and apparatus for irradiating x-rays
GB1214083A (en) * 1967-04-19 1970-12-02 Tokyo Shibaura Electric Co X-ray tubes
US3649861A (en) * 1970-09-09 1972-03-14 Picker Corp Double focus x-ray tube
US4065689A (en) * 1974-11-29 1977-12-27 Picker Corporation Dual filament X-ray tube
US3946261A (en) * 1975-01-03 1976-03-23 The Machlett Laboratories, Inc. Dual filament X-Ray tube
DE2850583A1 (de) * 1978-11-22 1980-06-04 Philips Patentverwaltung Roentgenroehre mit zwei parallel nebeneinander angeordneten heizfaeden
US4315154A (en) * 1979-11-08 1982-02-09 Siemens Corporation Multiple focus X-ray generator

Also Published As

Publication number Publication date
EP0182637A2 (fr) 1986-05-28
JPS61179045A (ja) 1986-08-11

Similar Documents

Publication Publication Date Title
EP0184623A3 (fr) Moyens de dissipation de la chaleur pour tubes générateurs de rayons X
GB852734A (en) Improvements in x-ray generator tubes
GB1394055A (en) Electron emitters
JPS5562650A (en) X-ray tube for stereo
CA1019919A (en) High modulus, high strength carbon fibers produced from mesophase pitch
GB1214083A (en) X-ray tubes
EP0182637A3 (fr) Tubes à rayons X
CA1031080A (fr) Tube a faisceau d'electrons muni d'une cathode a emission thermionique pour microscope a balayage d'electrons
EP0172491A3 (fr) Revêtement émissif sur cibles en alliage pour tubes à rayons X
IE821649L (en) Sputtering system.
FR2623331B1 (fr)
JPS5214347A (en) Field emission electron gun
KR950006099B1 (ko) 전자기 편향 유닛
JPS5496964A (en) Magnetron
FR2384352A1 (fr) Tube a rayons-x
GB1311321A (en) X-ray tubes
FR2393416A1 (fr) Tube de rontgen a anode rotative
GB1381686A (en) Electron beam heating system
JPS52127059A (en) Field emission type electron gun
JPS54128664A (en) Electron gun for cathode ray tube
GB1337232A (en) Anodes for rotary anode x-ray tubes and rotary anode x-ray tubes including such anodes
GB1389771A (en) Electrical discharge tube
JPS54142990A (en) X-ray tube
JPS52120757A (en) Electronic beam application unit
湯川哲之 et al. Landau Damping

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB NL

17P Request for examination filed

Effective date: 19871022

17Q First examination report despatched

Effective date: 19880928

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19890209

RIN1 Information on inventor provided before grant (corrected)

Inventor name: PLEIL, VIKTOR W.

Inventor name: FURBEE, AVERY D.