FR2394170A1 - Procede et appareil de tomographie transversale par calculateur - Google Patents

Procede et appareil de tomographie transversale par calculateur

Info

Publication number
FR2394170A1
FR2394170A1 FR7808456A FR7808456A FR2394170A1 FR 2394170 A1 FR2394170 A1 FR 2394170A1 FR 7808456 A FR7808456 A FR 7808456A FR 7808456 A FR7808456 A FR 7808456A FR 2394170 A1 FR2394170 A1 FR 2394170A1
Authority
FR
France
Prior art keywords
ray generator
section
emitting surface
shaped radiation
fan shaped
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Withdrawn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
FR7808456A
Other languages
English (en)
French (fr)
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.)
High Voltage Engineering Corp
Original Assignee
High Voltage Engineering Corp
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 US05/780,492 external-priority patent/US4122346A/en
Application filed by High Voltage Engineering Corp filed Critical High Voltage Engineering Corp
Publication of FR2394170A1 publication Critical patent/FR2394170A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/54—Control of apparatus or devices for radiation diagnosis
    • A61B6/541—Control of apparatus or devices for radiation diagnosis involving acquisition triggered by a physiological signal
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computerised tomographs
    • A61B6/032—Transmission computed tomography [CT]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/40—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/4021—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot
    • A61B6/4028—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot resulting in acquisition of views from substantially different positions, e.g. EBCT
    • 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
    • H01J35/30—Tubes wherein the point of impact of the cathode ray on the anode or anticathode is movable relative to the surface thereof by deflection of the cathode ray
FR7808456A 1977-03-23 1978-03-23 Procede et appareil de tomographie transversale par calculateur Withdrawn FR2394170A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US78049177A 1977-03-23 1977-03-23
US05/780,492 US4122346A (en) 1977-03-23 1977-03-23 Optical devices for computed transaxial tomography

Publications (1)

Publication Number Publication Date
FR2394170A1 true FR2394170A1 (fr) 1979-01-05

Family

ID=27119717

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7808456A Withdrawn FR2394170A1 (fr) 1977-03-23 1978-03-23 Procede et appareil de tomographie transversale par calculateur

Country Status (3)

Country Link
DE (1) DE2812644A1 (de)
FR (1) FR2394170A1 (de)
NL (1) NL7803065A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3064933D1 (en) * 1979-08-16 1983-10-27 Gen Electric Electronically scanned x-ray tomography system
GB2122806B (en) * 1982-06-17 1986-01-22 Thor Cryogenics Ltd X-ray source apparatus
DE3401749A1 (de) * 1984-01-19 1985-08-01 Siemens AG, 1000 Berlin und 8000 München Roentgendiagnostikeinrichtung mit einer roentgenroehre
EP0466956A1 (de) * 1990-07-18 1992-01-22 Siemens Aktiengesellschaft Computertomograph
DE4110468A1 (de) * 1991-03-30 1992-10-01 Forschungszentrum Juelich Gmbh Einrichtung zur roentgenbestrahlung von objekten
DE4139150C1 (en) * 1991-11-28 1993-06-24 Siemens Ag, 8000 Muenchen, De Computer tomograph with part ring formed X=ray source and detector - has double ring system without complementary interpolation
US5442673A (en) * 1994-03-30 1995-08-15 Siemens Aktiengesellschaft Fixed septum collimator for electron beam tomography

Also Published As

Publication number Publication date
NL7803065A (nl) 1978-09-26
DE2812644A1 (de) 1978-10-12

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Legal Events

Date Code Title Description
ST Notification of lapse