FR2432718A1 - Appareil de detection de radiations pour tomographie - Google Patents

Appareil de detection de radiations pour tomographie

Info

Publication number
FR2432718A1
FR2432718A1 FR7907535A FR7907535A FR2432718A1 FR 2432718 A1 FR2432718 A1 FR 2432718A1 FR 7907535 A FR7907535 A FR 7907535A FR 7907535 A FR7907535 A FR 7907535A FR 2432718 A1 FR2432718 A1 FR 2432718A1
Authority
FR
France
Prior art keywords
detector
radiation detection
processing device
output signal
relates
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.)
Withdrawn
Application number
FR7907535A
Other languages
English (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.)
University of California
Original Assignee
University of California
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 University of California filed Critical University of California
Publication of FR2432718A1 publication Critical patent/FR2432718A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/29—Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
    • G01T1/2914—Measurement of spatial distribution of radiation
    • G01T1/2921—Static instruments for imaging the distribution of radioactivity in one or two dimensions; Radio-isotope cameras
    • G01T1/2928—Static instruments for imaging the distribution of radioactivity in one or two dimensions; Radio-isotope cameras using solid state detectors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computerised tomographs
    • A61B6/032—Transmission computed tomography [CT]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/26—Measuring radiation intensity with resistance detectors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S378/00—X-ray or gamma ray systems or devices
    • Y10S378/901—Computer tomography program or processor

Abstract

L'invention concerne les appareils de détection de radiations. Elle se rapporte à un appareil qui comprend un détecteur à semi-conducteur qui crée une charge électrique sous l'action de radiations incidentes, un dispositif de traitement de signaux couplé au détecteur en courant alternatif et destiné à créer un signal électrique représentant avec précision les radiations incidentes et un filtre incorporé au dispositif de traitement et ne permettant la contribution au signal de sortie que des composantes ayant une fréquence comprise dans une gamme predéterminée qui dépend de la durée des impulsions, le signal de sortie étant ainsi dépourvu de distorsion due aux mauvaises caractéristiques électriques du détecteur. Application aux appareils de balayage tomographique.
FR7907535A 1978-03-27 1979-03-26 Appareil de detection de radiations pour tomographie Withdrawn FR2432718A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/890,841 US4255659A (en) 1978-03-27 1978-03-27 Semiconductor radiation detector

Publications (1)

Publication Number Publication Date
FR2432718A1 true FR2432718A1 (fr) 1980-02-29

Family

ID=25397212

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7907535A Withdrawn FR2432718A1 (fr) 1978-03-27 1979-03-26 Appareil de detection de radiations pour tomographie

Country Status (10)

Country Link
US (1) US4255659A (fr)
JP (1) JPS54143192A (fr)
BE (1) BE875095A (fr)
DE (1) DE2909598A1 (fr)
DK (1) DK122579A (fr)
FR (1) FR2432718A1 (fr)
GB (1) GB2017295A (fr)
IT (1) IT1111552B (fr)
LU (1) LU81077A1 (fr)
NL (1) NL7902348A (fr)

Cited By (1)

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FR2456504A2 (fr) * 1979-05-16 1980-12-12 Siemens Ag Appareil de radiodiagnostic permettant de realiser des tomographies

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US4415237A (en) * 1981-09-01 1983-11-15 The United States Of America As Represented By The Department Of Energy Radiation dosimeter
US4431920A (en) * 1982-04-14 1984-02-14 The United States Of America As Represented By The Secretary Of The Army Ionizing radiation dose monitor using silicon-on-sapphire transistor
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JPS5994046A (ja) * 1982-11-19 1984-05-30 Matsushita Electric Ind Co Ltd 放射線受像装置
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DE3307693A1 (de) * 1983-03-04 1984-09-13 Jacques J. Dipl.-Ing. Zürich Troesch Verfahren zur automatischen eingangsstrom-kompensation an einem serie-parallel gegengekoppelten messverstaerkerkreis, hoechstohmiges, eingangsstromkompensiertes verstaerkermodul sowie verwendung des verfahrens
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US4700076A (en) * 1983-09-02 1987-10-13 Digital Imaging Company Of America, Inc. Solid-state X-ray receptor and method of making same
JPH0640077B2 (ja) * 1983-10-12 1994-05-25 松下電器産業株式会社 放射線受像方法
DE3467692D1 (en) * 1984-05-14 1988-01-07 Matsushita Electric Ind Co Ltd Quantum-counting radiography method and apparatus
US4755748A (en) * 1985-06-05 1988-07-05 Bell Communications Research, Inc. Method and apparatus for analyzing semiconductor devices using charge-sensitive electron-beam-injected-carrier microscopy
US5220170A (en) * 1985-12-11 1993-06-15 General Imaging Corporation X-ray imaging system and solid state detector therefor
JPS6385487A (ja) * 1986-09-30 1988-04-15 Toshiba Corp 放射線検出器
FR2626432B1 (fr) * 1988-01-25 1995-10-13 Commissariat Energie Atomique Appareil de tomographie a rayons x
US4880981A (en) * 1988-03-11 1989-11-14 Bicron Corporation Low level radiation measurement device
US5479018A (en) * 1989-05-08 1995-12-26 Westinghouse Electric Corp. Back surface illuminated infrared detector
EP0631137B1 (fr) * 1993-06-25 2002-03-20 Edward W. Stark Méthode et appareil pour la mesure de substances apparentées au glucose
US5371376A (en) * 1993-07-20 1994-12-06 Xsirius, Inc. Mercuric iodide detector
US5621238A (en) * 1994-02-25 1997-04-15 The United States Of America As Represented By The Secretary Of The Air Force Narrow band semiconductor detector
US5742060A (en) * 1994-12-23 1998-04-21 Digirad Corporation Medical system for obtaining multiple images of a body from different perspectives
US6055450A (en) * 1994-12-23 2000-04-25 Digirad Corporation Bifurcated gamma camera system
JP3358817B2 (ja) * 1994-12-23 2002-12-24 ディジラッド 半導体γ線カメラおよび医療用イメージングシステム
US5677539A (en) * 1995-10-13 1997-10-14 Digirad Semiconductor radiation detector with enhanced charge collection
US6046454A (en) * 1995-10-13 2000-04-04 Digirad Corporation Semiconductor radiation detector with enhanced charge collection
US6037595A (en) * 1995-10-13 2000-03-14 Digirad Corporation Radiation detector with shielding electrode
US7388205B1 (en) 1995-10-23 2008-06-17 Science Applications International Corporation System and method for target inspection using discrete photon counting and neutron detection
US7045787B1 (en) * 1995-10-23 2006-05-16 Science Applications International Corporation Density detection using real time discrete photon counting for fast moving targets
IL119033A0 (en) * 1996-08-07 1996-11-14 Elscint Ltd Multi-slice detector array
US5707879A (en) * 1997-01-08 1998-01-13 Reinitz; Karl Neutron detector based on semiconductor materials
DE19703428A1 (de) * 1997-01-30 1998-08-06 Siemens Ag Schnelles Computertomographie-Verfahren und Anordnung dafür
DE69835240T2 (de) * 1998-09-24 2007-06-06 Elgems Ltd. Photonendetektor in form einer pixel-matrix
EP1674887A3 (fr) * 1998-09-24 2006-11-08 Elgems Ltd. Détecteur photoeléctrique pixelise
US6242741B1 (en) * 1998-10-23 2001-06-05 United States Surgical Corporation Radiation detection apparatus
AU2003296500A1 (en) * 2002-12-13 2004-07-09 Oy Ajat, Ltd. Switching/depolarizing power supply for a radiation imaging device
JP3699973B1 (ja) * 2004-12-28 2005-09-28 株式会社日立製作所 核医学診断装置
US7504636B1 (en) 2006-12-20 2009-03-17 Xrf Corporation Radiation detector using pulse stretcher
US20080227878A1 (en) * 2007-03-14 2008-09-18 James Garrett Trimer and allophanate modified isocyanates, a process for their production, foams comprising these modified isocyanates, and a process for the production of these foams
DE102007027921B4 (de) 2007-06-18 2009-04-16 Siemens Ag Sensoranordnung, bildgebende radiologische Anlage und bildgebendes Verfahren
US7741610B2 (en) * 2007-11-01 2010-06-22 Oy Ajat Ltd. CdTe/CdZnTe radiation imaging detector and high/biasing voltage means
DE102009013301A1 (de) * 2009-03-16 2010-09-30 Siemens Aktiengesellschaft Röntgen- oder Gammadetektorarray
US8165266B2 (en) * 2009-09-10 2012-04-24 General Electric Company Transverse scanning bone densitometer and detector used in same
US8314394B1 (en) 2009-11-04 2012-11-20 Science Applications International Corporation System and method for three-dimensional imaging using scattering from annihilation coincidence photons
CA2849398C (fr) 2011-09-07 2020-12-29 Rapiscan Systems, Inc. Systeme d'inspection par rayons x integrant des donnees de manifeste et traitement par imagerie/detection
US10098595B2 (en) * 2015-08-06 2018-10-16 Texas Instruments Incorporated Low power photon counting system
WO2017146930A1 (fr) 2016-02-22 2017-08-31 Rapiscan Systems, Inc. Systèmes et procédés de détection de menaces et de contrebande dans une cargaison
US10151845B1 (en) 2017-08-02 2018-12-11 Texas Instruments Incorporated Configurable analog-to-digital converter and processing for photon counting
US10024979B1 (en) 2017-11-01 2018-07-17 Texas Instruments Incorporated Photon counting with coincidence detection
CN111587389A (zh) * 2018-02-03 2020-08-25 深圳帧观德芯科技有限公司 恢复辐射检测器的方法
EP3821277A4 (fr) * 2018-07-12 2022-02-23 Shenzhen Xpectvision Technology Co., Ltd. Détecteur de rayonnement
JP7273842B2 (ja) * 2018-10-25 2023-05-15 株式会社東芝 フォトンカウンティング型放射線検出器およびそれを用いた放射線検査装置
JP6747487B2 (ja) * 2018-10-26 2020-08-26 大日本印刷株式会社 放射線検出装置
US10890674B2 (en) 2019-01-15 2021-01-12 Texas Instruments Incorporated Dynamic noise shaping in a photon counting system

Citations (5)

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GB1015897A (en) * 1962-12-18 1966-01-05 Atomic Energy Commission Radiation detection system
FR1428774A (fr) * 1964-03-19 1966-02-18 Nat Res Dev Appareil pour mesurer les intensités de sources radio-actives
GB1082960A (en) * 1963-12-23 1967-09-13 Japan Atomic Energy Res Inst System for a.c. operation of an ionization chamber
FR1599807A (fr) * 1967-10-25 1970-07-20

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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117229A (en) * 1960-10-03 1964-01-07 Solid State Radiations Inc Solid state radiation detector with separate ohmic contacts to reduce leakage current
GB1015897A (en) * 1962-12-18 1966-01-05 Atomic Energy Commission Radiation detection system
GB1082960A (en) * 1963-12-23 1967-09-13 Japan Atomic Energy Res Inst System for a.c. operation of an ionization chamber
FR1428774A (fr) * 1964-03-19 1966-02-18 Nat Res Dev Appareil pour mesurer les intensités de sources radio-actives
FR1599807A (fr) * 1967-10-25 1970-07-20

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2456504A2 (fr) * 1979-05-16 1980-12-12 Siemens Ag Appareil de radiodiagnostic permettant de realiser des tomographies

Also Published As

Publication number Publication date
BE875095A (fr) 1979-09-26
JPS54143192A (en) 1979-11-08
DE2909598A1 (de) 1979-10-04
IT7921292A0 (it) 1979-03-26
US4255659A (en) 1981-03-10
GB2017295A (en) 1979-10-03
DK122579A (da) 1979-09-28
LU81077A1 (fr) 1979-10-30
NL7902348A (nl) 1979-10-01
IT1111552B (it) 1986-01-13

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