FR2394170A1 - Transaxial tomography X=ray generator - with particles bombarding section of emitting surface to give fan shaped radiation - Google Patents
Transaxial tomography X=ray generator - with particles bombarding section of emitting surface to give fan shaped radiationInfo
- 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- Withdrawn
Links
- 239000002245 particle Substances 0.000 title abstract 3
- 238000003325 tomography Methods 0.000 title abstract 2
- 230000005855 radiation Effects 0.000 title 1
- 239000000463 material Substances 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis 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 or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4021—Arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot
- A61B6/4028—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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
- Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Physiology (AREA)
- Pulmonology (AREA)
- Theoretical Computer Science (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The X-ray generator is for transaxial tomography with the aid of a computer. A bundle of charged particles is excited and moved so that the bundle is focussed in succession on different sections of the surface of an impact device, placed around the article to be examined. The device is of material emitting X-rays when struck by the charged particles, so that bombardment by them causes the surface sections to radiate. The X-rays from these sections, directed inwards, are collected into a thin flat zone, so that those from each radiate in a unrestricted fan shape within this zone.
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 (en) | 1979-01-05 |
Family
ID=27119717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7808456A Withdrawn FR2394170A1 (en) | 1977-03-23 | 1978-03-23 | Transaxial tomography X=ray generator - with particles bombarding section of emitting surface to give fan shaped radiation |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2812644A1 (en) |
FR (1) | FR2394170A1 (en) |
NL (1) | NL7803065A (en) |
Families Citing this family (7)
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 (en) * | 1984-01-19 | 1985-08-01 | Siemens AG, 1000 Berlin und 8000 München | X-RAY DIAGNOSTIC DEVICE WITH AN X-RAY TUBE |
EP0466956A1 (en) * | 1990-07-18 | 1992-01-22 | Siemens Aktiengesellschaft | Tomography apparatus |
DE4110468A1 (en) * | 1991-03-30 | 1992-10-01 | Forschungszentrum Juelich Gmbh | DEVICE FOR X-RAY RADIATION OF OBJECTS |
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 |
-
1978
- 1978-03-22 NL NL7803065A patent/NL7803065A/en not_active Application Discontinuation
- 1978-03-22 DE DE19782812644 patent/DE2812644A1/en not_active Withdrawn
- 1978-03-23 FR FR7808456A patent/FR2394170A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE2812644A1 (en) | 1978-10-12 |
NL7803065A (en) | 1978-09-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |