FR2173752A1 - Electron beam diffuser - for homogeneous irradiation density esp of radiotherapy appts - Google Patents

Electron beam diffuser - for homogeneous irradiation density esp of radiotherapy appts

Info

Publication number
FR2173752A1
FR2173752A1 FR7207000A FR7207000A FR2173752A1 FR 2173752 A1 FR2173752 A1 FR 2173752A1 FR 7207000 A FR7207000 A FR 7207000A FR 7207000 A FR7207000 A FR 7207000A FR 2173752 A1 FR2173752 A1 FR 2173752A1
Authority
FR
France
Prior art keywords
esp
electron beam
radiotherapy
appts
irradiation density
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.)
Granted
Application number
FR7207000A
Other languages
French (fr)
Other versions
FR2173752B1 (en
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7207000A priority Critical patent/FR2173752A1/en
Publication of FR2173752A1 publication Critical patent/FR2173752A1/en
Application granted granted Critical
Publication of FR2173752B1 publication Critical patent/FR2173752B1/fr
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/08—Deviation, concentration or focusing of the beam by electric or magnetic means
    • G21K1/093—Deviation, concentration or focusing of the beam by electric or magnetic means by magnetic means
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/10—Scattering devices; Absorbing devices; Ionising radiation filters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N2005/1092—Details
    • A61N2005/1095—Elements inserted into the radiation path within the system, e.g. filters or wedges

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Radiation-Therapy Devices (AREA)

Abstract

The electron beam leaving the deviator of a particle accelerator equipment or a radiotherapy unit, passes through a first diffuser foil so that the max. energy density is central, followed by a second diffuser foil with a central shadow zone so that at a predetermined distance, the irradiation energy density is uniform, esp. over an area between 2 x 2 cm and 30 x 30 cm. This area depends on relative geometries of the components and is relatively easily regulated by an additional collimator system.
FR7207000A 1972-03-01 1972-03-01 Electron beam diffuser - for homogeneous irradiation density esp of radiotherapy appts Granted FR2173752A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7207000A FR2173752A1 (en) 1972-03-01 1972-03-01 Electron beam diffuser - for homogeneous irradiation density esp of radiotherapy appts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7207000A FR2173752A1 (en) 1972-03-01 1972-03-01 Electron beam diffuser - for homogeneous irradiation density esp of radiotherapy appts

Publications (2)

Publication Number Publication Date
FR2173752A1 true FR2173752A1 (en) 1973-10-12
FR2173752B1 FR2173752B1 (en) 1975-08-29

Family

ID=9094382

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7207000A Granted FR2173752A1 (en) 1972-03-01 1972-03-01 Electron beam diffuser - for homogeneous irradiation density esp of radiotherapy appts

Country Status (1)

Country Link
FR (1) FR2173752A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2387497A1 (en) * 1977-04-13 1978-11-10 Siemens Ag RADIATION EMITTER HEAD OF AN ELECTRON ACCELERATOR
WO1981003104A1 (en) * 1980-04-25 1981-10-29 A Ivanov Device for irradiating objects with electron beams
FR2516390A1 (en) * 1981-11-19 1983-05-20 Varian Associates ACHROMATIC BENDING MAGNET WITH A SHOULDER HINGE, IN PARTICULAR FOR A THERAPEUTIC IRRADIATION APPARATUS
FR2516695A1 (en) * 1981-11-19 1983-05-20 Varian Associates ACHROMATIC DEFLECTION DEVICE WITH FOCUSING BY A SINGLE QUADRIPOLE, IN PARTICULAR FOR THERAPEUTIC IRRADIATION APPARATUS
FR2527892A1 (en) * 1982-05-28 1983-12-02 Cgr Mev Electron irradiation field dose equaliser for radiotherapy - has absorbing screen in electron beam path between radiation source and treatment field

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2387497A1 (en) * 1977-04-13 1978-11-10 Siemens Ag RADIATION EMITTER HEAD OF AN ELECTRON ACCELERATOR
WO1981003104A1 (en) * 1980-04-25 1981-10-29 A Ivanov Device for irradiating objects with electron beams
FR2516390A1 (en) * 1981-11-19 1983-05-20 Varian Associates ACHROMATIC BENDING MAGNET WITH A SHOULDER HINGE, IN PARTICULAR FOR A THERAPEUTIC IRRADIATION APPARATUS
FR2516695A1 (en) * 1981-11-19 1983-05-20 Varian Associates ACHROMATIC DEFLECTION DEVICE WITH FOCUSING BY A SINGLE QUADRIPOLE, IN PARTICULAR FOR THERAPEUTIC IRRADIATION APPARATUS
FR2527892A1 (en) * 1982-05-28 1983-12-02 Cgr Mev Electron irradiation field dose equaliser for radiotherapy - has absorbing screen in electron beam path between radiation source and treatment field

Also Published As

Publication number Publication date
FR2173752B1 (en) 1975-08-29

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Legal Events

Date Code Title Description
ST Notification of lapse