IN2014CN04970A - - Google Patents

Info

Publication number
IN2014CN04970A
IN2014CN04970A IN4970CHN2014A IN2014CN04970A IN 2014CN04970 A IN2014CN04970 A IN 2014CN04970A IN 4970CHN2014 A IN4970CHN2014 A IN 4970CHN2014A IN 2014CN04970 A IN2014CN04970 A IN 2014CN04970A
Authority
IN
India
Prior art keywords
pile
detection
event
detection values
detection signal
Prior art date
Application number
Other languages
English (en)
Inventor
Roland Proksa
Ewald Roessl
Original Assignee
Koninkl Philips 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 Koninkl Philips Nv filed Critical Koninkl Philips Nv
Publication of IN2014CN04970A publication Critical patent/IN2014CN04970A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/58—Testing, adjusting or calibrating thereof
    • A61B6/582—Calibration
    • A61B6/585—Calibration of detector units
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5258—Devices using data or image processing specially adapted for radiation diagnosis involving detection or reduction of artifacts or noise
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/02—Measuring characteristics of individual pulses, e.g. deviation from pulse flatness, rise time or duration
    • G01R29/027—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values
    • G01R29/0273—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values the pulse characteristic being duration, i.e. width (indicating that frequency of pulses is above or below a certain limit)
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/02—Measuring characteristics of individual pulses, e.g. deviation from pulse flatness, rise time or duration
    • G01R29/027—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values
    • G01R29/033—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values giving an indication of the number of times this occurs, i.e. multi-channel analysers (the characteristic being frequency)
    • 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
    • G01T1/18—Measuring radiation intensity with counting-tube arrangements, e.g. with Geiger counters
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
    • G06F7/64—Digital differential analysers, i.e. computing devices for differentiation, integration or solving differential or integral equations, using pulses representing increments; Other incremental computing devices for solving difference equations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
    • H01L27/144—Devices controlled by radiation
    • H01L27/146—Imager structures
    • H01L27/148—Charge coupled imagers
    • H01L27/14831—Area CCD imagers
    • H01L27/14856—Time-delay and integration
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/125—Discriminating pulses
    • H03K5/1252—Suppression or limitation of noise or interference
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
    • H03K5/24—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude
    • H03K5/2463—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude using diodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02—Operational features
    • A61B2560/0223—Operational features of calibration, e.g. protocols for calibrating sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02—Operational features
    • A61B2560/0223—Operational features of calibration, e.g. protocols for calibrating sensors
    • A61B2560/0238—Means for recording calibration data
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • A61B6/4241—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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5205—Devices using data or image processing specially adapted for radiation diagnosis involving processing of raw data to produce diagnostic data
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/58—Testing, adjusting or calibrating thereof
    • A61B6/582—Calibration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08—Measuring electromagnetic field characteristics
    • G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
    • G01R29/0878—Sensors; antennas; probes; detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/24—Arrangements for measuring quantities of charge
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers
    • H03K21/40—Monitoring; Error detection; Preventing or correcting improper counter operation

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Surgery (AREA)
  • Theoretical Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pure & Applied Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Mathematical Optimization (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Computer Hardware Design (AREA)
  • Electromagnetism (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Measurement Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Geophysics And Detection Of Objects (AREA)
IN4970CHN2014 2011-12-21 2012-12-13 IN2014CN04970A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161578546P 2011-12-21 2011-12-21
PCT/IB2012/057266 WO2013093726A1 (en) 2011-12-21 2012-12-13 Detection apparatus for detecting photons taking pile -up events into account

Publications (1)

Publication Number Publication Date
IN2014CN04970A true IN2014CN04970A (ja) 2015-09-18

Family

ID=47631484

Family Applications (1)

Application Number Title Priority Date Filing Date
IN4970CHN2014 IN2014CN04970A (ja) 2011-12-21 2012-12-13

Country Status (8)

Country Link
US (1) US9801605B2 (ja)
EP (1) EP2751594B1 (ja)
JP (1) JP6170941B2 (ja)
CN (1) CN104024886B (ja)
BR (1) BR112014014839A2 (ja)
IN (1) IN2014CN04970A (ja)
RU (1) RU2595803C2 (ja)
WO (1) WO2013093726A1 (ja)

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EP2871496B1 (en) * 2013-11-12 2020-01-01 Samsung Electronics Co., Ltd Radiation detector and computed tomography apparatus using the same
JP6289108B2 (ja) * 2014-01-14 2018-03-07 キヤノンメディカルシステムズ株式会社 フォトンカウンティングｃｔ装置及びフォトンカウンティングｃｔデータ処理方法
JP6484916B2 (ja) * 2014-02-06 2019-03-20 コニカミノルタ株式会社 Ｘ線画像撮影装置
WO2016050562A1 (en) 2014-10-01 2016-04-07 Koninklijke Philips N.V. Imaging apparatus and method
WO2016076767A1 (en) * 2014-11-10 2016-05-19 Prismatic Sensors Ab X-ray imaging based on image data from a photon-counting multi bin x-ray detector
DE102015202999B4 (de) * 2015-02-19 2019-12-05 Siemens Healthcare Gmbh Automatisierte Justierung von Signalanalyseparametern für Röntgendetektoren
CN108139487B (zh) * 2015-08-27 2021-12-31 皇家飞利浦有限公司 光子计数设备和方法
US10613096B2 (en) 2015-08-28 2020-04-07 Captl Llc Multi-spectral microparticle-fluorescence photon cytometry
EP3350624B1 (en) * 2015-09-18 2019-11-06 Koninklijke Philips N.V. Correcting photon counts in a photon counting x-ray radiation detection system
JP6700737B2 (ja) * 2015-11-20 2020-05-27 キヤノン株式会社 放射線撮像システム、信号処理装置、及び、放射線画像の信号処理方法
JP6629100B2 (ja) 2016-02-26 2020-01-15 キヤノンメディカルシステムズ株式会社 放射線検出装置および放射線検出システム
CN106656390B (zh) * 2016-11-15 2018-10-30 武汉中派科技有限责任公司 用于测量光子时间信息的装置及方法
JP6815209B2 (ja) * 2017-01-24 2021-01-20 キヤノンメディカルシステムズ株式会社 Ｘ線ｃｔ装置
US11187584B2 (en) 2017-04-13 2021-11-30 Captl Llc Photon counting and spectroscopy
JP7152912B2 (ja) * 2018-09-06 2022-10-13 キヤノン株式会社 光電変換装置及び撮像システム
WO2020106199A1 (en) * 2018-11-19 2020-05-28 Prismatic Sensors Ab Edge-on photon-counting detector
US11344266B2 (en) * 2019-09-16 2022-05-31 Redlen Technologies, Inc. Calibration methods for improving uniformity in X-ray photon counting detectors
JP7527871B2 (ja) * 2020-07-10 2024-08-05 キヤノン株式会社 光電変換装置及びその駆動方法
DE112021004442T5 (de) * 2020-08-27 2023-06-15 Analog Devices, Inc. Energie-bin-ereignis-zählsystem
CN112587161B (zh) * 2020-12-09 2022-09-30 明峰医疗系统股份有限公司 堆积信号恢复方法、pet成像设备及计算机可读存储介质
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Also Published As

Publication number Publication date
JP6170941B2 (ja) 2017-08-02
RU2595803C2 (ru) 2016-08-27
RU2014129795A (ru) 2016-02-10
US9801605B2 (en) 2017-10-31
US20140328466A1 (en) 2014-11-06
BR112014014839A2 (pt) 2017-06-13
WO2013093726A1 (en) 2013-06-27
JP2015506463A (ja) 2015-03-02
CN104024886B (zh) 2017-12-26
EP2751594A1 (en) 2014-07-09
CN104024886A (zh) 2014-09-03
EP2751594B1 (en) 2018-08-08

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