GB1258028A - - Google Patents

Info

Publication number
GB1258028A
GB1258028A GB1258028DA GB1258028A GB 1258028 A GB1258028 A GB 1258028A GB 1258028D A GB1258028D A GB 1258028DA GB 1258028 A GB1258028 A GB 1258028A
Authority
GB
United Kingdom
Prior art keywords
blocks
aperture
pushes
rotation
shaft
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
Other languages
English (en)
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 filed Critical
Publication of GB1258028A publication Critical patent/GB1258028A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Measurement Of Radiation (AREA)
  • Radiation-Therapy Devices (AREA)
GB1258028D 1970-05-16 1970-05-16 Expired GB1258028A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2384770 1970-05-16

Publications (1)

Publication Number Publication Date
GB1258028A true GB1258028A (enrdf_load_stackoverflow) 1971-12-22

Family

ID=10202278

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1258028D Expired GB1258028A (enrdf_load_stackoverflow) 1970-05-16 1970-05-16

Country Status (1)

Country Link
GB (1) GB1258028A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519465A1 (fr) * 1981-12-31 1983-07-08 Cgr Mev Dispositif limiteur partiel d'un faisceau de rayonnement et collimateur comportant de tels dispositifs
EP0187245A1 (de) * 1984-12-11 1986-07-16 Siemens Aktiengesellschaft Primärstrahlenblende für Röntgendiagnostikgeräte
US4739173A (en) * 1986-04-11 1988-04-19 Board Of Trustees Operating Michigan State University Collimator apparatus and method
US5373546A (en) * 1992-09-02 1994-12-13 Siemens Aktiengesellschaft Filter changer
US5396533A (en) * 1992-09-02 1995-03-07 Siemens Aktiengesellschaft Primary radiation diaphragm for a radiation apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519465A1 (fr) * 1981-12-31 1983-07-08 Cgr Mev Dispositif limiteur partiel d'un faisceau de rayonnement et collimateur comportant de tels dispositifs
EP0187245A1 (de) * 1984-12-11 1986-07-16 Siemens Aktiengesellschaft Primärstrahlenblende für Röntgendiagnostikgeräte
US4691335A (en) * 1984-12-11 1987-09-01 Siemens Aktiengesellschaft Primary radiation diaphragm for X-ray diagnostics devices
US4739173A (en) * 1986-04-11 1988-04-19 Board Of Trustees Operating Michigan State University Collimator apparatus and method
US5373546A (en) * 1992-09-02 1994-12-13 Siemens Aktiengesellschaft Filter changer
US5396533A (en) * 1992-09-02 1995-03-07 Siemens Aktiengesellschaft Primary radiation diaphragm for a radiation apparatus

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees