WO2007144589A3 - Apparatus and method for operating a pixelated high-energy radiation detector - Google Patents

Apparatus and method for operating a pixelated high-energy radiation detector Download PDF

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Publication number
WO2007144589A3
WO2007144589A3 PCT/GB2007/002152 GB2007002152W WO2007144589A3 WO 2007144589 A3 WO2007144589 A3 WO 2007144589A3 GB 2007002152 W GB2007002152 W GB 2007002152W WO 2007144589 A3 WO2007144589 A3 WO 2007144589A3
Authority
WO
WIPO (PCT)
Prior art keywords
window
correction
frame
pixel
scan
Prior art date
Application number
PCT/GB2007/002152
Other languages
French (fr)
Other versions
WO2007144589A2 (en
Inventor
David Prendergast
Michael Anderson
Paul Downes
William Croydon
Christopher Boyce
Wayne Cranwell
Trevor Mcalister
Zhuo Zhhang
Original Assignee
Radiation Watch Ltd
David Prendergast
Michael Anderson
Paul Downes
William Croydon
Christopher Boyce
Wayne Cranwell
Trevor Mcalister
Zhuo Zhhang
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
Priority claimed from GB0611621A external-priority patent/GB0611621D0/en
Priority claimed from GB0611623A external-priority patent/GB0611623D0/en
Application filed by Radiation Watch Ltd, David Prendergast, Michael Anderson, Paul Downes, William Croydon, Christopher Boyce, Wayne Cranwell, Trevor Mcalister, Zhuo Zhhang filed Critical Radiation Watch Ltd
Publication of WO2007144589A2 publication Critical patent/WO2007144589A2/en
Publication of WO2007144589A3 publication Critical patent/WO2007144589A3/en
Priority to US12/692,448 priority Critical patent/US20110210262A1/en
Priority to US14/266,581 priority patent/US20150083925A1/en
Priority to US15/172,584 priority patent/US9513175B2/en

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

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)
  • Nuclear Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Measurement Of Radiation (AREA)

Abstract

Apparatus for spatially correcting an image frame comprising an array of pixel values is disclosed. The apparatus is configured to store a frame of pixel values and scan a multi -pixel correction window across the frame of pixel values. Spatial correction is carried out on pixels values within the correction window at correction positions during said scan. The spatial correction comprises estimating a pixel value at a value estimation position within the window at a correction position based on one or more pixels values within the window for pixel values within the window satisfying a logical condition. The value estimation position corresponds to a pixel value in said frame which will not fall within said window again during said scan of said frame. Further disclosed is apparatus for detecting high-energy radiation, in which charge read-out circuits including charge integration circuitry for integrating charge responsive to a radiation photon interaction event in a high-energy radiation detector are automatically controllable in accordance with an exposure control signal to vary an exposure window duration dependent on an operating parameter of said apparatus.
PCT/GB2007/002152 2006-06-12 2007-06-12 Apparatus and method for operating a pixelated high-energy radiation detector WO2007144589A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/692,448 US20110210262A1 (en) 2006-06-12 2010-01-22 Apparatus and method for detecting high-energy radiation
US14/266,581 US20150083925A1 (en) 2006-06-12 2014-04-30 Apparatus and method for detecting high-energy radiation
US15/172,584 US9513175B2 (en) 2006-06-12 2016-06-03 Apparatus and method for detecting high-energy radiation

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0611621.4 2006-06-12
GB0611623.0 2006-06-12
GB0611621A GB0611621D0 (en) 2006-06-12 2006-06-12 Calibration
GB0611623A GB0611623D0 (en) 2006-06-12 2006-06-12 Detection and read chain

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US12304755 A-371-Of-International 2007-06-12
US12/692,448 Continuation US20110210262A1 (en) 2006-06-12 2010-01-22 Apparatus and method for detecting high-energy radiation

Publications (2)

Publication Number Publication Date
WO2007144589A2 WO2007144589A2 (en) 2007-12-21
WO2007144589A3 true WO2007144589A3 (en) 2009-04-02

Family

ID=38832144

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2007/002152 WO2007144589A2 (en) 2006-06-12 2007-06-12 Apparatus and method for operating a pixelated high-energy radiation detector

Country Status (1)

Country Link
WO (1) WO2007144589A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0903813D0 (en) 2009-03-05 2009-04-22 Consiglia Services Ltd Scanning imaging system, apparatus and method
FR2950979B1 (en) * 2009-10-07 2012-12-07 Commissariat Energie Atomique METHOD FOR PROCESSING DATA FROM A IONIZING RADIATION DETECTOR
FR2970339B1 (en) 2011-01-10 2013-02-08 Commissariat Energie Atomique NUCLEAR MATERIAL DETECTION PROCESS BY NEUTRONIC INTERROGATION AND ASSOCIATED DETECTION SYSTEM
CZ2014103A3 (en) * 2014-02-14 2015-08-19 České vysoké učení technické v Praze, Ústav technické a experimentální fyziky Arrangement of transmission display system for detection of radiation
CN110178053B (en) * 2017-01-23 2023-07-18 深圳帧观德芯科技有限公司 Radiation detector with dynamically allocated memory for particle counting
EP3418776B1 (en) * 2017-06-21 2022-01-05 Siemens Healthcare GmbH Radiation detector and method for operating same
WO2020109668A1 (en) * 2018-11-29 2020-06-04 Oy Ajat Ltd. Detector circuit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09257938A (en) * 1996-03-22 1997-10-03 Shimadzu Corp X-ray detector
DE19615178A1 (en) * 1996-04-17 1997-10-23 Fraunhofer Ges Forschung Digital radiographic system especially for dental treatment
US20030111674A1 (en) * 1994-01-28 2003-06-19 California Institute Technology Active pixel sensor array with electronic shuttering
US20040028182A1 (en) * 2002-08-05 2004-02-12 Masahiro Tamegai Area exposure dosimetry and area absorbed dosimetry

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030111674A1 (en) * 1994-01-28 2003-06-19 California Institute Technology Active pixel sensor array with electronic shuttering
JPH09257938A (en) * 1996-03-22 1997-10-03 Shimadzu Corp X-ray detector
DE19615178A1 (en) * 1996-04-17 1997-10-23 Fraunhofer Ges Forschung Digital radiographic system especially for dental treatment
US20040028182A1 (en) * 2002-08-05 2004-02-12 Masahiro Tamegai Area exposure dosimetry and area absorbed dosimetry

Also Published As

Publication number Publication date
WO2007144589A2 (en) 2007-12-21

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