GB1346004A - Collimator for collimating a radiation beam - Google Patents

Collimator for collimating a radiation beam

Info

Publication number
GB1346004A
GB1346004A GB1690272A GB1690272A GB1346004A GB 1346004 A GB1346004 A GB 1346004A GB 1690272 A GB1690272 A GB 1690272A GB 1690272 A GB1690272 A GB 1690272A GB 1346004 A GB1346004 A GB 1346004A
Authority
GB
United Kingdom
Prior art keywords
cells
neutron
april
collimating
filling
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
GB1690272A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB1346004A publication Critical patent/GB1346004A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
    • G21K1/04—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using variable diaphragms, shutters, choppers
    • 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
    • A61N5/1042—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy with spatial modulation of the radiation beam within the treatment head
    • 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

Landscapes

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

Abstract

1346004 Collimating neutron beams LICEN- TIA PATENT - VERWALTUNGS GmbH 12 April 1972 [16 April 1971 27 Jan 1972] 16902/72 Heading G6P A neutron beam is collimated by passing it through an aperture comprising an arrangement of cells which can be filled selectively with neutron absorbing material. In Fig. 1 there is shown a collimator block 3 comprising concentric layers of screening material and housing a target 2 which can be bombarded by ions from an accelerator to produce neutrons. A beam exit aperture 4 receives a structure which is made up of a number of hollow, wedge-like cells 5.1 to 5.n. By filling selected cells with a neutron absorber (of which several are specified), the emergent beam can be shaped as required. By controlling the degree of filling of individual cells, the dosage in corresponding zones of the beam can be varied. In the embodiment of Fig. 5, solid cores 13 may be located in selected cells; each core comprises magnetic material whereby, upon energization of a coil 12 to produce a non-homogeneous field, the cores are urged into the cells. Alternatively, mechanical locking can be provided.
GB1690272A 1971-04-16 1972-04-12 Collimator for collimating a radiation beam Expired GB1346004A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2118426A DE2118426C3 (en) 1971-04-16 1971-04-16 Neutron collimator
DE2203769A DE2203769C2 (en) 1971-04-16 1972-01-27 High energy beam collimator

Publications (1)

Publication Number Publication Date
GB1346004A true GB1346004A (en) 1974-02-06

Family

ID=25760972

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1690272A Expired GB1346004A (en) 1971-04-16 1972-04-12 Collimator for collimating a radiation beam

Country Status (9)

Country Link
US (1) US3805081A (en)
AT (1) AT326227B (en)
CH (1) CH541214A (en)
DE (2) DE2118426C3 (en)
FR (1) FR2133701B1 (en)
GB (1) GB1346004A (en)
NL (1) NL7205023A (en)
SE (1) SE374613B (en)
ZA (1) ZA722411B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE798040A (en) * 1973-04-10 1973-07-31 Piret Pierre PROCESS FOR THE REALIZATION OF FIELDS OF ANY SHAPE FOR HIGH ENERGY RADIOTHERAPY EQUIPMENT AND AUXILIARY LOCATOR FOR IMPLEMENTING THE PROCESS
US4300054A (en) * 1980-02-04 1981-11-10 Vought Corporation Directionally positionable neutron beam
SE423458B (en) * 1980-09-10 1982-05-03 Agne Larsson DEVICE OF A CAMERA INCLUDING A DIFFERENT COLLIMATOR
US4463266A (en) * 1981-02-20 1984-07-31 Instrument Ab Scanditronix Neutron collimator
FR2601544A1 (en) * 1986-07-08 1988-01-15 Thomson Csf DIAPHRAGM FOR BEAM OF ELECTROMAGNETIC RADIATION AND ITS USE IN A DEVICE FOR COLLIMATING THIS BEAM
FR2601493A1 (en) * 1986-07-08 1988-01-15 Thomson Csf Device for forming images by displacement of fluids and its use for the production of space filters for X rays
DE4333551C1 (en) * 1993-10-01 1995-03-02 Forschungszentrum Juelich Gmbh Device for the variable alignment of a tubular recess located in a wall, of a pipe or of a rod
WO1997038629A1 (en) * 1996-04-15 1997-10-23 Philips Electronics N.V. X-ray examination apparatus including a collimator
EP0943148A1 (en) * 1997-10-06 1999-09-22 Koninklijke Philips Electronics N.V. X-ray examination apparatus including adjustable x-ray filter and collimator
US6320938B1 (en) 1998-10-28 2001-11-20 F & L Medical Products Method of X-ray protection during diagnostic CT imaging
US20030086527A1 (en) * 2001-11-02 2003-05-08 Speiser Burton L Radiation modulating apparatus and methods therefore
US7400434B2 (en) * 2005-08-16 2008-07-15 C-Rad Innovation Ab Radiation modulator
CN103000243B (en) * 2012-11-27 2016-01-13 华北电力大学 A kind of neutron collimator gas flow exchange device
CN106531280B (en) * 2016-11-03 2018-12-07 东莞中子科学中心 Neutron howitzer
CN109471152B (en) * 2018-09-13 2020-09-15 上海交通大学 Collimator device capable of automatically adjusting gamma ray flux and measuring system thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2871367A (en) * 1955-08-01 1959-01-27 Socony Mobil Oil Co Gamma ray collimating device
US3114043A (en) * 1960-01-28 1963-12-10 Westinghouse Electric Corp Radiation beam shaping device
US3407300A (en) * 1966-04-14 1968-10-22 Picker Corp Collimator and method of making same

Also Published As

Publication number Publication date
DE2203769C2 (en) 1974-02-21
ATA315972A (en) 1975-02-15
CH541214A (en) 1973-08-31
FR2133701A1 (en) 1972-12-01
DE2203769B1 (en) 1973-07-26
US3805081A (en) 1974-04-16
AT326227B (en) 1975-11-25
DE2118426C3 (en) 1973-11-22
FR2133701B1 (en) 1977-01-14
SE374613B (en) 1975-03-10
DE2118426A1 (en) 1972-11-23
NL7205023A (en) 1972-10-18
DE2118426B2 (en) 1973-04-19
ZA722411B (en) 1973-01-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee