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WO2008146230A3 - Photon counting with detection of local maxima - Google Patents

Photon counting with detection of local maxima Download PDF

Info

Publication number
WO2008146230A3
WO2008146230A3 PCT/IB2008/052058 IB2008052058W WO2008146230A3 WO 2008146230 A3 WO2008146230 A3 WO 2008146230A3 IB 2008052058 W IB2008052058 W IB 2008052058W WO 2008146230 A3 WO2008146230 A3 WO 2008146230A3
Authority
WO
WIPO (PCT)
Prior art keywords
photon counting
photon
detection
local maxima
counters
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.)
Ceased
Application number
PCT/IB2008/052058
Other languages
French (fr)
Other versions
WO2008146230A2 (en
Inventor
Booker Roger Steadman
Cristoph Herrmann
Christian Baeumer
Guenter Zeitler
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 Intellectual Property and Standards GmbH
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 Intellectual Property and Standards GmbH, Koninklijke Philips Electronics NV filed Critical Philips Intellectual Property and Standards GmbH
Publication of WO2008146230A2 publication Critical patent/WO2008146230A2/en
Publication of WO2008146230A3 publication Critical patent/WO2008146230A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. 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
    • G01T1/17—Circuit arrangements not adapted to a particular type of detector
    • G01T1/171—Compensation of dead-time counting losses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/70—SSIS architectures; Circuits associated therewith
    • H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
    • H04N25/77—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components
    • H04N25/772—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components comprising A/D, V/T, V/F, I/T or I/F converters
    • H04N25/773—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components comprising A/D, V/T, V/F, I/T or I/F converters comprising photon counting circuits, e.g. single photon detection [SPD] or single photon avalanche diodes [SPAD]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/40—Imaging
    • G01N2223/419—Imaging computed tomograph

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Chemical & Material Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Multimedia (AREA)
  • Pulmonology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

A photon counting apparatus includes a radiation detector (100) and signal conditioning circuitry (102). A photon rate counter (106) produces a count value indicative of a total number of photons received by the detector (100). One or more photon counters (1101+N) produce count values indicative of photons having varying energy characteristics. The counters (1101+n) disregard pileup pulses.
PCT/IB2008/052058 2007-05-29 2008-05-26 Photon counting with detection of local maxima Ceased WO2008146230A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07109082.3 2007-05-29
EP07109082 2007-05-29

Publications (2)

Publication Number Publication Date
WO2008146230A2 WO2008146230A2 (en) 2008-12-04
WO2008146230A3 true WO2008146230A3 (en) 2009-07-23

Family

ID=40075616

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/052058 Ceased WO2008146230A2 (en) 2007-05-29 2008-05-26 Photon counting with detection of local maxima

Country Status (1)

Country Link
WO (1) WO2008146230A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11988785B2 (en) 2019-03-14 2024-05-21 Koninklijke Philips N.V. Charge sharing compensation with sampled discriminators

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010141101A1 (en) * 2009-06-05 2010-12-09 Sentinel Scanning Corporation Transportation container inspection system and method
FI122647B (en) * 2009-06-09 2012-05-15 Planmeca Oy Digital X-ray sensor arrangement and digital X-ray imaging procedure
EP2751594B1 (en) * 2011-12-21 2018-08-08 Koninklijke Philips N.V. Detection apparatus for detecting photons taking pile-up events into account
JP5917157B2 (en) * 2012-01-13 2016-05-11 株式会社東芝 X-ray CT system
RU2014143012A (en) * 2012-03-27 2016-05-20 Конинклейке Филипс Н.В. ELECTRONIC DEVICE FOR DETECTOR FOR COUNTING PHOTONS IN THE HIGH INTENSITY FLOW
US9029748B2 (en) 2013-03-15 2015-05-12 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Method and apparatus for photon counting with optical space spreading
JP2016522891A (en) 2013-04-24 2016-08-04 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Pulse processing circuit having correction means
US10499869B2 (en) * 2016-02-05 2019-12-10 Toshiba Medical Systems Corporation Apparatus and method for material decomposition of spectrally resolved projection data using singles counts
FR3050282B1 (en) * 2016-04-14 2020-09-18 Commissariat Energie Atomique PARTICLE COUNTING DEVICE FOR RADIATION DETECTOR
US11029425B2 (en) 2016-06-16 2021-06-08 Koninklijke Philips N.V. Photon-counting in a spectral radiation detector
US11187584B2 (en) * 2017-04-13 2021-11-30 Captl Llc Photon counting and spectroscopy
DE102020208000B4 (en) * 2020-06-29 2025-06-18 Siemens Healthineers Ag Photon-counting X-ray detector, medical imaging device and method for generating an X-ray image dataset

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5873054A (en) * 1995-08-14 1999-02-16 William K. Warburton Method and apparatus for combinatorial logic signal processor in a digitally based high speed x-ray spectrometer
WO2007049168A2 (en) * 2005-10-28 2007-05-03 Koninklijke Philips Electronics, N.V. Method and apparatus for spectral computed tomography

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5873054A (en) * 1995-08-14 1999-02-16 William K. Warburton Method and apparatus for combinatorial logic signal processor in a digitally based high speed x-ray spectrometer
WO2007049168A2 (en) * 2005-10-28 2007-05-03 Koninklijke Philips Electronics, N.V. Method and apparatus for spectral computed tomography

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11988785B2 (en) 2019-03-14 2024-05-21 Koninklijke Philips N.V. Charge sharing compensation with sampled discriminators

Also Published As

Publication number Publication date
WO2008146230A2 (en) 2008-12-04

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