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WO1994023458A3 - X-ray detector for a low dosage scanning beam digital x-ray imaging system - Google Patents

X-ray detector for a low dosage scanning beam digital x-ray imaging system

Info

Publication number
WO1994023458A3
WO1994023458A3 PCT/US1994/003737 US9403737W WO1994023458A3 WO 1994023458 A3 WO1994023458 A3 WO 1994023458A3 US 9403737 W US9403737 W US 9403737W WO 1994023458 A3 WO1994023458 A3 WO 1994023458A3
Authority
WO
Grant status
Application
Patent type
Prior art keywords
ray
detector
beam
array
element
Prior art date
Application number
PCT/US1994/003737
Other languages
French (fr)
Other versions
WO1994023458A2 (en )
Inventor
Jack Wilson Moorman
Brian Skillicorn
Peter Joseph Fiekowsky
John William Di Wilent
Original Assignee
Wilent Virginia & Hf
Cardiac Mariners Inc
Jack Wilson Moorman
Brian Skillicorn
Peter Joseph Fiekowsky
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

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/48Diagnostic techniques
    • A61B6/482Diagnostic techniques involving multiple energy imaging
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/06Diaphragms for particular diagnostic applications, e.g. tomography, i.e. not of general applicability
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/12Devices for detecting or locating foreign bodies
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/40Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/4021Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot
    • A61B6/4028Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/42Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4208Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • A61B6/4241Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using energy resolving detectors, e.g. photon counting
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01TMEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16Measuring radiation intensity
    • G01T1/20Measuring radiation intensity with scintillation detectors
    • G01T1/2018Scintillation-photodiode combination
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01TMEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16Measuring radiation intensity
    • G01T1/20Measuring radiation intensity with scintillation detectors
    • G01T1/202Measuring radiation intensity with scintillation detectors the detector being a crystal
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01TMEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/29Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
    • G01T1/2914Measurement of spatial distribution of radiation
    • G01T1/2964Scanners
    • G01T1/2971Scanners using solid state detectors
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00X-ray tubes
    • H01J35/02Details
    • H01J35/14Arrangements for concentrating, focusing, or directing the cathode ray
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05GX-RAY TECHNIQUE
    • H05G1/00X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08Electrical details
    • H05G1/10Power supply arrangements for feeding the X-ray tube
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05GX-RAY TECHNIQUE
    • H05G1/00X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08Electrical details
    • H05G1/64Circuit arrangements for X-ray apparatus incorporating image intensifiers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/02Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/027Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/40Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/4035Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis the source being combined with a filter or grating
    • A61B6/4042K-edge filters
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/44Constructional features of the device for radiation diagnosis
    • A61B6/4488Means for cooling

Abstract

A scanning beam digital x-ray imaging system according to the present invention includes an x-ray tube (10) having an electron beam source (161) and a target anode (50). Circuitry is provided for focussing the beam (164) and scanning the beam (20, 30) across the target anode (50) in a predetermined pattern such as a serpentine scan pattern. A collimating element (90), preferably in the form of a perforated grid containing an array of apertures (140), is interposed between the x-ray source (50) and an object to be x-rayed (80). The apertures (140) are oriented to form x-ray beams (100) converging at a detector array (110) on a plane (270) located a selected distance from the collimating element (90). That distance is selected to allow placing the object to be x-rayed (80) in between the collimating element (90) and the detector array (110). A segmented x-ray detector array (110) containing a rectangular matrix of detector elements (170) is located in the detection plane (270). A focal plane (280) is created which gives optimal resolution at a particular, selectable distance from the x-ray source (50).
PCT/US1994/003737 1993-04-05 1994-04-05 X-ray detector for a low dosage scanning beam digital x-ray imaging system WO1994023458A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US4274293 true 1993-04-05 1993-04-05
US08/042,742 1993-04-05

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP52247394A JP3569526B2 (en) 1993-04-05 1994-04-05 Low dose scanning beam digital x-ray imaging x-ray detector for the system
EP19940927433 EP0693225A4 (en) 1993-04-05 1994-04-05 X-ray detector for a low dosage scanning beam digital x-ray imaging system
US09152079 US6060713A (en) 1993-04-05 1998-09-11 X-ray detector
US09227280 US6649914B1 (en) 1993-01-25 1999-01-07 Scanning-beam X-ray imaging system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US37550195 Continuation 1995-01-17 1995-01-17

Publications (2)

Publication Number Publication Date
WO1994023458A2 true WO1994023458A2 (en) 1994-10-13
WO1994023458A3 true true WO1994023458A3 (en) 1994-11-10

Family

ID=21923514

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/003737 WO1994023458A3 (en) 1993-04-05 1994-04-05 X-ray detector for a low dosage scanning beam digital x-ray imaging system

Country Status (4)

Country Link
EP (1) EP0693225A4 (en)
JP (3) JP3569526B2 (en)
CN (1) CN1041237C (en)
WO (1) WO1994023458A3 (en)

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CA2267311A1 (en) * 1996-09-25 1998-04-02 Ragnar Kullenberg X-ray multimeter
US6183139B1 (en) 1998-10-06 2001-02-06 Cardiac Mariners, Inc. X-ray scanning method and apparatus
US6118854A (en) * 1998-10-06 2000-09-12 Cardiac Mariners, Inc. Method of making x-ray beam hardening filter and assembly
US6178223B1 (en) 1998-10-06 2001-01-23 Cardiac Mariners, Inc. Image reconstruction method and apparatus
US6181764B1 (en) 1998-10-06 2001-01-30 Cardiac Mariners, Inc. Image reconstruction for wide depth of field images
US6118853A (en) * 1998-10-06 2000-09-12 Cardiac Mariners, Inc. X-ray target assembly
US6234671B1 (en) 1998-10-06 2001-05-22 Cardiac Mariners, Inc. X-ray system with scanning beam x-ray source below object table
US6175611B1 (en) 1998-10-06 2001-01-16 Cardiac Mariners, Inc. Tiered detector assembly
US6198802B1 (en) 1998-10-06 2001-03-06 Cardiac Mariners, Inc. Scanning beam x-ray source and assembly
US6157703A (en) * 1998-10-06 2000-12-05 Cardiac Mariners, Inc. Beam hardening filter for x-ray source
US6208709B1 (en) 1998-10-06 2001-03-27 Cardiac Mariners, Inc. Detection processing system
US6271510B1 (en) 1998-12-18 2001-08-07 Izzie Boxen Fiber optic gamma camera having scintillating fibers
US6408054B1 (en) * 1999-11-24 2002-06-18 Xerox Corporation Micromachined x-ray image contrast grids
CN100443052C (en) 2004-10-14 2008-12-17 Ge医疗系统环球技术有限公司 X-ray CT appts.
DE102005004363A1 (en) * 2004-12-01 2006-06-14 Chi Lin Technology Co., Ltd., Jen Te Display unit in which the lighting is adjustable relative to the ambient light
KR101196509B1 (en) 2005-04-01 2012-11-02 프리즘, 인코포레이티드 Display systems and devices having screens with optical fluorescent materials
FR2884618B1 (en) 2005-04-19 2008-06-06 Commissariat Energie Atomique Device limiting the appearance of decoding artefacts for gamma camera a mask code.
KR100680700B1 (en) 2005-07-11 2007-02-09 가톨릭대학교 산학협력단 A digital radiography system using a flat-panel type X-ray source and the method of using the same
GB2437979B (en) * 2006-05-12 2010-12-01 Symetrica Ltd Plastic scintillators
KR100940287B1 (en) * 2007-09-07 2010-02-05 주식회사 쎄크 X-ray ct apparatus
JP5047826B2 (en) * 2008-01-31 2012-10-10 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー Collimator, the collimator laminate, and multi-modality system
CA2757544A1 (en) * 2009-04-01 2010-10-21 Brookhaven Science Associates, Llc Interwoven multi-aperture collimator for 3-dimensional radiation imaging applications
JPWO2012036160A1 (en) * 2010-09-14 2014-02-03 株式会社東芝 Mo collimator and X-ray detector using the same, X-rays inspection apparatus and CT apparatus
CN102631215A (en) * 2011-02-14 2012-08-15 杨光蕾 Method and device for reducing radiation dosage of X rays in human transmission inspection
US9411057B2 (en) 2011-04-01 2016-08-09 Medtronic Navigation, Inc. X-ray imaging system and method
EP2718936A1 (en) * 2011-06-06 2014-04-16 Koninklijke Philips N.V. Multiple focal spot x-ray radiation filtering
JP2013088265A (en) * 2011-10-18 2013-05-13 Katsuhiro Dobashi Radiation collimator and method for manufacturing the radiation collimator
GB201119257D0 (en) * 2011-11-08 2011-12-21 Eshtech Ltd X-ray detection apparatus
CN102967609B (en) * 2012-11-28 2015-05-13 中国石油大学(北京) Oil deposit percolation experimental model for measuring multi-phase fluid saturation distribution and measuring method
GB201308876D0 (en) * 2013-05-16 2013-07-03 Ibex Innovations Ltd X-Ray imaging apparatus and methods
US9917133B2 (en) 2013-12-12 2018-03-13 General Electric Company Optoelectronic device with flexible substrate
CN104991267A (en) * 2015-07-28 2015-10-21 济南中威仪器有限公司 Position indicator used for searching lost radioactive source

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US3114862A (en) * 1960-03-18 1963-12-17 Gen Motors Corp Latching relay
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US4288697A (en) * 1979-05-03 1981-09-08 Albert Richard D Laminate radiation collimator
US5140162A (en) * 1989-03-17 1992-08-18 Roger Stettner Solid-state port digital imager
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Also Published As

Publication number Publication date Type
EP0693225A4 (en) 1999-06-23 application
CN1041237C (en) 1998-12-16 grant
CN1127553A (en) 1996-07-24 application
JP2003265457A (en) 2003-09-24 application
WO1994023458A2 (en) 1994-10-13 application
JP2004261605A (en) 2004-09-24 application
JP3569526B2 (en) 2004-09-22 grant
JP4229859B2 (en) 2009-02-25 grant
JPH08508431A (en) 1996-09-10 application
EP0693225A1 (en) 1996-01-24 application

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