EP0389033A3 - X or gamma ray generation apparatus with small cross-section and variable position - Google Patents

X or gamma ray generation apparatus with small cross-section and variable position Download PDF

Info

Publication number
EP0389033A3
EP0389033A3 EP19900200571 EP90200571A EP0389033A3 EP 0389033 A3 EP0389033 A3 EP 0389033A3 EP 19900200571 EP19900200571 EP 19900200571 EP 90200571 A EP90200571 A EP 90200571A EP 0389033 A3 EP0389033 A3 EP 0389033A3
Authority
EP
European Patent Office
Prior art keywords
section
ray
small cross
diaphragm
generation apparatus
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
EP19900200571
Other languages
German (de)
French (fr)
Other versions
EP0389033A2 (en
EP0389033B1 (en
Inventor
Geoffrey Dr. Harding
Petrus Merkelbach
Franciscus L.A.M. Thissen
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.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Patentverwaltung GmbH
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics NV
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 Philips Patentverwaltung GmbH, Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Philips Patentverwaltung GmbH
Publication of EP0389033A2 publication Critical patent/EP0389033A2/en
Publication of EP0389033A3 publication Critical patent/EP0389033A3/en
Application granted granted Critical
Publication of EP0389033B1 publication Critical patent/EP0389033B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G21K1/043—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using variable diaphragms, shutters, choppers changing time structure of beams by mechanical means, e.g. choppers, spinning filter wheels

Abstract

Die Erfindung betrifft eine Anordnung zur Erzeugung eines Röntgen- oder Gammastrahls mit geringem Querschnitt und veränderbarer Richtung, mit einem Röntgen- oder Gamma­ strahler, von dessen Fokus ein Strahlenbündel ausgeht, und einer Blendenanordnung, die aus dem Strahlenbündel einen Strahl ausblendet und einen um seine Symmetrieachse drehbaren hohlzylinderförmigen ersten Blendenkörper mit zwei auf dem Umfang gegeneinander versetzten schrauben­ linienförmigen Schlitzen umfaßt. Dabei wird auch bei einem relativ langen hohlzylinderförmigen Körper mit geringem Durchmesser ein Röntgenstrahl mit zumindest annähernd quadratischem Querschnitt dadurch ausgeblendet, daß die Schlitze sich in mindestens je einer Windung um den Blendenkörper winden und so geformt sind, daß durch die Schlitze hindurch zum Fokus hin mindestens eine Gerade verläuft, deren Lage durch Drehung des Blendenkörpers änderbar ist. The invention relates to an arrangement for generating a X-ray or gamma rays with a small cross-section and changeable direction, with an x-ray or gamma spotlights, from the focus of which a beam of rays emanates, and a diaphragm arrangement, the one from the beam Suppresses beam and one around its axis of symmetry rotatable hollow cylindrical first diaphragm body with two screws offset on the circumference includes linear slots. This also applies to one relatively long hollow cylindrical body with little Diameter of an x-ray beam with at least approximately square cross section hidden in that the Slit in at least one turn around the Wind the diaphragm body and are shaped so that by the Slits through at least one straight line towards the focus runs, their position by rotating the diaphragm body is changeable.

EP90200571A 1989-03-18 1990-03-12 X or gamma ray generation apparatus with small cross-section and variable position Expired - Lifetime EP0389033B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3908966A DE3908966A1 (en) 1989-03-18 1989-03-18 ARRANGEMENT FOR GENERATING A X-RAY OR Gamma RAY WITH A SMALL SECTION AND CHANGEABLE LOCATION
DE3908966 1989-03-18

Publications (3)

Publication Number Publication Date
EP0389033A2 EP0389033A2 (en) 1990-09-26
EP0389033A3 true EP0389033A3 (en) 1991-07-31
EP0389033B1 EP0389033B1 (en) 1994-10-26

Family

ID=6376681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90200571A Expired - Lifetime EP0389033B1 (en) 1989-03-18 1990-03-12 X or gamma ray generation apparatus with small cross-section and variable position

Country Status (4)

Country Link
US (1) US5038370A (en)
EP (1) EP0389033B1 (en)
JP (1) JP2940556B2 (en)
DE (2) DE3908966A1 (en)

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US5212718A (en) * 1991-08-06 1993-05-18 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Gamma ray collimator
US5493596A (en) * 1993-11-03 1996-02-20 Annis; Martin High-energy X-ray inspection system
SE9401300L (en) * 1994-04-18 1995-10-19 Bgc Dev Ab Rotating cylinder collimator for collimation of ionizing, electromagnetic radiation
ATE290223T1 (en) 1998-11-30 2005-03-15 American Science & Eng Inc X-RAY EXAMINATION SYSTEM WITH CONE AND PENCIL BEAMS FROM A COMMON SOURCE
US6272206B1 (en) * 1999-11-03 2001-08-07 Perkinelmer Detection Systems, Inc. Rotatable cylinder dual beam modulator
DE60222768T2 (en) * 2001-04-03 2008-07-17 Koninklijke Philips Electronics N.V. CT Scanner
US7963695B2 (en) 2002-07-23 2011-06-21 Rapiscan Systems, Inc. Rotatable boom cargo scanning system
DE102005048519A1 (en) * 2005-10-06 2007-04-19 BAM Bundesanstalt für Materialforschung und -prüfung Focused aperture
US8576982B2 (en) 2008-02-01 2013-11-05 Rapiscan Systems, Inc. Personnel screening system
US8995619B2 (en) 2010-03-14 2015-03-31 Rapiscan Systems, Inc. Personnel screening system
US8638904B2 (en) 2010-03-14 2014-01-28 Rapiscan Systems, Inc. Personnel screening system
US9310323B2 (en) 2009-05-16 2016-04-12 Rapiscan Systems, Inc. Systems and methods for high-Z threat alarm resolution
ITTO20090946A1 (en) 2009-12-01 2011-06-02 Varian Spa METHOD TO IMPROVE THERMAL EXCHANGE EFFICIENCY BETWEEN A METAL BODY AND A TUBE IN WHICH A HEAT EXCHANGE FLUID FLOWS.
CN103558240B (en) * 2009-12-30 2016-03-09 同方威视技术股份有限公司 A kind of scanister of imaging beam and method
RU2558012C2 (en) * 2010-03-14 2015-07-27 Рапискан Системз, Инк. Multiple-screen detection systems
CN102565110B (en) 2010-12-31 2015-04-01 同方威视技术股份有限公司 Device and method for scanning ray bundles for backscatter imaging
US8908831B2 (en) 2011-02-08 2014-12-09 Rapiscan Systems, Inc. Covert surveillance using multi-modality sensing
WO2012174265A1 (en) 2011-06-14 2012-12-20 Rapiscan Systems, Inc. Covert surveillance using multi-modality sensing
EP3640952A1 (en) * 2012-07-05 2020-04-22 American Science & Engineering, Inc. Variable angle collimator
US9557427B2 (en) 2014-01-08 2017-01-31 Rapiscan Systems, Inc. Thin gap chamber neutron detectors
US11280898B2 (en) 2014-03-07 2022-03-22 Rapiscan Systems, Inc. Radar-based baggage and parcel inspection systems
JP6594331B2 (en) 2014-03-07 2019-10-23 ラピスカン システムズ、インコーポレイテッド Ultra-wideband detector
SG11201609671UA (en) * 2014-05-22 2016-12-29 Australian Nuclear Science Tec Gamma-ray imaging
KR20170109533A (en) 2014-11-25 2017-09-29 라피스캔 시스템스, 인코포레이티드 Intelligent security management system
GB2549891B (en) 2015-01-20 2021-09-08 American Science & Eng Inc Dynamically adjustable focal spot
CN105987920B (en) * 2015-02-11 2019-10-08 北京君和信达科技有限公司 A kind of flying spot forms device and design method
US10082473B2 (en) 2015-07-07 2018-09-25 General Electric Company X-ray filtration
US10656304B2 (en) 2015-09-10 2020-05-19 American Science And Engineering, Inc. Backscatter characterization using interlinearly adaptive electromagnetic X-ray scanning
EP3520120A4 (en) 2016-09-30 2020-07-08 American Science & Engineering, Inc. X-ray source for 2d scanning beam imaging
US10748740B2 (en) * 2018-08-21 2020-08-18 Fei Company X-ray and particle shield for improved vacuum conductivity
US10948614B2 (en) * 2018-11-01 2021-03-16 H3D, Inc. Imaging system with one or more mask units and corresponding method of recording radiation
US11193898B1 (en) 2020-06-01 2021-12-07 American Science And Engineering, Inc. Systems and methods for controlling image contrast in an X-ray system
US11972920B2 (en) 2021-11-23 2024-04-30 Fei Company Vacuum compatible X-ray shield

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074021A1 (en) * 1981-09-07 1983-03-16 Siemens Aktiengesellschaft X-ray examination apparatus
EP0184247A2 (en) * 1984-11-27 1986-06-11 Philips Patentverwaltung GmbH Arrangement for examining a body by gamma or X-rays
GB2170980A (en) * 1985-02-07 1986-08-13 Steve Webb Ct scanner and detector therefor
EP0357146A2 (en) * 1988-09-01 1990-03-07 Philips Patentverwaltung GmbH Arrangement for generating an X-ray or gamma-ray with a small sectional area and variable direction

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE194743C (en) *
US3766387A (en) * 1972-07-11 1973-10-16 Us Navy Nondestructive test device using radiation to detect flaws in materials
US3832564A (en) * 1973-01-31 1974-08-27 Us Navy Radiation absorber and intensity collimator unit
US3894234A (en) * 1974-01-28 1975-07-08 Us Navy Radial scanner
DE3120567A1 (en) * 1981-05-23 1983-01-20 Philips Patentverwaltung Gmbh, 2000 Hamburg SCREEN BEAM EXAMINATION ARRANGEMENT

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074021A1 (en) * 1981-09-07 1983-03-16 Siemens Aktiengesellschaft X-ray examination apparatus
EP0184247A2 (en) * 1984-11-27 1986-06-11 Philips Patentverwaltung GmbH Arrangement for examining a body by gamma or X-rays
GB2170980A (en) * 1985-02-07 1986-08-13 Steve Webb Ct scanner and detector therefor
EP0357146A2 (en) * 1988-09-01 1990-03-07 Philips Patentverwaltung GmbH Arrangement for generating an X-ray or gamma-ray with a small sectional area and variable direction

Also Published As

Publication number Publication date
US5038370A (en) 1991-08-06
JP2940556B2 (en) 1999-08-25
DE3908966A1 (en) 1990-09-20
JPH02275400A (en) 1990-11-09
EP0389033A2 (en) 1990-09-26
EP0389033B1 (en) 1994-10-26
DE59007543D1 (en) 1994-12-01

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