WO2008104911A3 - Apparatus, imaging device and method for counting x-ray photons - Google Patents

Apparatus, imaging device and method for counting x-ray photons Download PDF

Info

Publication number
WO2008104911A3
WO2008104911A3 PCT/IB2008/050648 IB2008050648W WO2008104911A3 WO 2008104911 A3 WO2008104911 A3 WO 2008104911A3 IB 2008050648 W IB2008050648 W IB 2008050648W WO 2008104911 A3 WO2008104911 A3 WO 2008104911A3
Authority
WO
WIPO (PCT)
Prior art keywords
counting
rayphotons
photons
imaging device
integrator
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/IB2008/050648
Other languages
French (fr)
Other versions
WO2008104911A2 (en
Inventor
Christian Baeumer
Christoph Herrmann
Booker Roger Steadman
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
Priority to EP08710129A priority Critical patent/EP2115489A2/en
Priority to US12/528,632 priority patent/US20100111248A1/en
Publication of WO2008104911A2 publication Critical patent/WO2008104911A2/en
Publication of WO2008104911A3 publication Critical patent/WO2008104911A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • G01T1/16—Measuring radiation intensity
    • G01T1/17—Circuit arrangements not adapted to a particular type of detector
    • 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
    • G01T1/2985—In depth localisation, e.g. using positron emitters; Tomographic imaging (longitudinal and transverse section imaging; apparatus for radiation diagnosis sequentially in different planes, steroscopic radiation diagnosis)

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

The invention relates to an apparatus (10) for counting X-rayphotons (12, 14), in particular photons in a computer tomograph. The events from a first photon-sensitive element (20) are recorded in a first integrator (24), and the events coming from a second photon-sensitive element (22) are counted in a second integrator (26). A first summing unit (28) is provided for summing the values from the first and second integrators (24, 26) and a result signalto obtain a sum, wherein the result signal is obtained from a feedback device (30) being provided with the sum. It is there possible to reduce a total information density generated by the impinging photons (12, 14), so that a data stream with a reduced information density (or reduced data rate) is present at an output (34). The invention also relates to a corresponding imaging device (16) based on the detection of X-rayphotons (12, 14), in particular for medical use and to a method for counting X-rayphotons (12, 14), in particular photons in a computer tomograph.
PCT/IB2008/050648 2007-02-27 2008-02-22 Apparatus, imaging device and method for counting x-ray photons Ceased WO2008104911A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08710129A EP2115489A2 (en) 2007-02-27 2008-02-22 Apparatus, imaging device and method for counting x-ray photons
US12/528,632 US20100111248A1 (en) 2007-02-27 2008-02-22 Apparatus, imaging device and method for counting x-ray photons

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07103143 2007-02-27
EP07103143.9 2007-02-27

Publications (2)

Publication Number Publication Date
WO2008104911A2 WO2008104911A2 (en) 2008-09-04
WO2008104911A3 true WO2008104911A3 (en) 2009-03-12

Family

ID=39672595

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/050648 Ceased WO2008104911A2 (en) 2007-02-27 2008-02-22 Apparatus, imaging device and method for counting x-ray photons

Country Status (4)

Country Link
US (1) US20100111248A1 (en)
EP (1) EP2115489A2 (en)
CN (1) CN101622551A (en)
WO (1) WO2008104911A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007022519A1 (en) * 2007-05-14 2008-11-20 Siemens Ag Method for determining individual quantum absorption events in a radiation converter for converting individual quanta of an incident ionizing radiation thereon. Program code means for carrying out the method, device for electronic data processing, radiation converter and imaging tomography device
EP2871496B1 (en) 2013-11-12 2020-01-01 Samsung Electronics Co., Ltd Radiation detector and computed tomography apparatus using the same
KR101812658B1 (en) 2013-11-12 2018-01-30 삼성전자주식회사 Radiation detector, tomography imaging apparatus thereof, and x-ray imaging apparatus thereof
US10048391B2 (en) * 2013-12-04 2018-08-14 Koninklijke Philips N.V. Imaging detector self-diagnosis circuitry
JP6698444B2 (en) * 2016-06-30 2020-05-27 株式会社日立製作所 Radiation imaging apparatus, radiation imaging method, and radiation imaging program
CN109150179A (en) * 2018-08-23 2019-01-04 上海联影医疗科技有限公司 clock distribution system and method
EP3847481B1 (en) * 2018-09-07 2023-11-29 Shenzhen Xpectvision Technology Co., Ltd. A radiation detector

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005069601A1 (en) * 2004-01-12 2005-07-28 Philips Intellectual Property & Standards Gmbh Semiconductor-based image sensor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9029793B2 (en) * 1998-11-05 2015-05-12 Siemens Aktiengesellschaft Imaging device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005069601A1 (en) * 2004-01-12 2005-07-28 Philips Intellectual Property & Standards Gmbh Semiconductor-based image sensor

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
GERACI A ET AL: "New Signal Conditioning Architecture for Optimal A/D Conversion in Digital Spectroscopy Setups", NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, 2005 IEEE WYNDHAM EL CONQUISTADOR RESORT, PUERTO RICO OCTOBER 23 - 29, 2005, PISCATAWAY, NJ, USA,IEEE, vol. 1, 23 October 2005 (2005-10-23), pages 30 - 34, XP010895537, ISBN: 978-0-7803-9221-2 *
O'NILS M ET AL: "Low digital interference counter for photon-counting pixel detectors", NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH, SECTION - A:ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, ELSEVIER, AMSTERDAM, NL, vol. 487, no. 3, 21 July 2002 (2002-07-21), pages 323 - 330, XP004370027, ISSN: 0168-9002 *
PAIN B ET AL: "LOW-POWER LOW-NOISE ANALOG CIRCUITS FOR ON-FOCAL-PLANE SIGNAL PROCESSING OF INFRARED SENSORS", PROCEEDINGS OF THE SPIE, SPIE, BELLINGHAM, VA; US, vol. 1946, 14 April 1993 (1993-04-14), pages 365 - 374, XP000578669 *

Also Published As

Publication number Publication date
US20100111248A1 (en) 2010-05-06
CN101622551A (en) 2010-01-06
EP2115489A2 (en) 2009-11-11
WO2008104911A2 (en) 2008-09-04

Similar Documents

Publication Publication Date Title
US20100181491A1 (en) Digitizer for a digital imaging system
US9182361B2 (en) Digital X-ray imaging system with still and video capture modes
KR101871361B1 (en) The photon counting detector and method for generating high resolution and high contrast image
JP5460103B2 (en) Radiation imaging apparatus and dark current correction method thereof
JP7085043B2 (en) Image processing equipment, image processing methods and programs
Roessl et al. A Fourier approach to pulse pile‐up in photon‐counting x‐ray detectors
EP1881740A3 (en) Audio signal processing apparatus, audio signal processing method and program
FR2819677A1 (en) AUTOMATIC ADJUSTMENT AND OPTIMIZATION OF EXPOSURE IN DIGITAL X-RAY RADIOGRAPHY
EP1476077A4 (en) APPARATUS AND METHOD FOR REDUCING X-RAY DIFFUSION AND COMPUTER-BEAM BEAM COMPUTER TOMOGRAPHY TESTING AND TUNING BEAM COMPUTER TOMOGRAPHY
CN113933885A (en) Photon counting X-ray detector, medical imaging apparatus and method
WO2013005848A1 (en) Photon counting image detector, x-ray diagnosis apparatus, and x-ray computerized tomography apparatus
JP2009504004A5 (en)
CN101290352A (en) A Counting Linear Array Imaging Detector Based on Gas Electron Multiplier
US20140086390A1 (en) Radiation exposure dose obtaining method and apparatus, and radiation image capturing system
JP4403045B2 (en) Radiation image detector
WO2003098402A2 (en) Method and apparatus for determining optical flow
CN106371126A (en) Smart phone's image sensor based radiation dose monitoring system and monitoring method
DE10343787A1 (en) Calibrating digital x-ray detector involves generating calibration image for combination with x-ray image acquired by x-ray detector, whereby pixel contrast of calibration image is smoothed using filter
US20100111248A1 (en) Apparatus, imaging device and method for counting x-ray photons
JP2009128969A5 (en)
TWI892301B (en) Method for deconvolving overlapping pulses and amplitude correction for photon counting computed tomography
CN108348203A (en) Radiation imaging system, the information processing unit for radiation image, the image processing method for radiation image and program
JP6081084B2 (en) Dosimeter
JP3613278B2 (en) Seated device
CN102809755B (en) Radiation detecting apparatus, radiation detecting system and radiation detecting method

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200880006243.9

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08710129

Country of ref document: EP

Kind code of ref document: A2

WWE Wipo information: entry into national phase

Ref document number: 2008710129

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 12528632

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 5448/CHENP/2009

Country of ref document: IN