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FR2754656B1 - PHOTODETECTOR SIGNAL CODING UNIT AND METHOD, WITH INPUT LEVEL CORRECTION, AND USE OF SUCH A UNIT FOR A GAMMA-CAMERA - Google Patents

PHOTODETECTOR SIGNAL CODING UNIT AND METHOD, WITH INPUT LEVEL CORRECTION, AND USE OF SUCH A UNIT FOR A GAMMA-CAMERA

Info

Publication number
FR2754656B1
FR2754656B1 FR9612490A FR9612490A FR2754656B1 FR 2754656 B1 FR2754656 B1 FR 2754656B1 FR 9612490 A FR9612490 A FR 9612490A FR 9612490 A FR9612490 A FR 9612490A FR 2754656 B1 FR2754656 B1 FR 2754656B1
Authority
FR
France
Prior art keywords
unit
gamma
camera
input level
level correction
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.)
Expired - Fee Related
Application number
FR9612490A
Other languages
French (fr)
Other versions
FR2754656A1 (en
Inventor
Alain Chapuis
Claude Janin
Corinne Mestais
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR9612490A priority Critical patent/FR2754656B1/en
Priority to PCT/FR1997/001809 priority patent/WO1998017002A1/en
Priority to EP97909383A priority patent/EP0931381A1/en
Priority to JP51805998A priority patent/JP2001505729A/en
Publication of FR2754656A1 publication Critical patent/FR2754656A1/en
Application granted granted Critical
Publication of FR2754656B1 publication Critical patent/FR2754656B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/0602—Continuously compensating for, or preventing, undesired influence of physical parameters of deviations from the desired transfer characteristic
    • H03M1/0604—Continuously compensating for, or preventing, undesired influence of physical parameters of deviations from the desired transfer characteristic at one point, i.e. by adjusting a single reference value, e.g. bias or gain error
    • H03M1/0607—Offset or drift compensation
    • 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
    • G01T1/161—Applications in the field of nuclear medicine, e.g. in vivo counting
    • G01T1/164—Scintigraphy
    • G01T1/1641—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras
    • G01T1/1642—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras using a scintillation crystal and position sensing photodetector arrays, e.g. ANGER cameras
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)
FR9612490A 1996-10-14 1996-10-14 PHOTODETECTOR SIGNAL CODING UNIT AND METHOD, WITH INPUT LEVEL CORRECTION, AND USE OF SUCH A UNIT FOR A GAMMA-CAMERA Expired - Fee Related FR2754656B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR9612490A FR2754656B1 (en) 1996-10-14 1996-10-14 PHOTODETECTOR SIGNAL CODING UNIT AND METHOD, WITH INPUT LEVEL CORRECTION, AND USE OF SUCH A UNIT FOR A GAMMA-CAMERA
PCT/FR1997/001809 WO1998017002A1 (en) 1996-10-14 1997-10-10 Unit and method for encoding photodetector signal, with correction of input level, and use of such a unit for a gamma-camera
EP97909383A EP0931381A1 (en) 1996-10-14 1997-10-10 Unit and method for encoding photodetector signal, with correction of input level, and use of such a unit for a gamma-camera
JP51805998A JP2001505729A (en) 1996-10-14 1997-10-10 Apparatus and process for encoding a photodetector signal with input level correction and use of this apparatus for a gamma camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9612490A FR2754656B1 (en) 1996-10-14 1996-10-14 PHOTODETECTOR SIGNAL CODING UNIT AND METHOD, WITH INPUT LEVEL CORRECTION, AND USE OF SUCH A UNIT FOR A GAMMA-CAMERA

Publications (2)

Publication Number Publication Date
FR2754656A1 FR2754656A1 (en) 1998-04-17
FR2754656B1 true FR2754656B1 (en) 1998-12-18

Family

ID=9496620

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9612490A Expired - Fee Related FR2754656B1 (en) 1996-10-14 1996-10-14 PHOTODETECTOR SIGNAL CODING UNIT AND METHOD, WITH INPUT LEVEL CORRECTION, AND USE OF SUCH A UNIT FOR A GAMMA-CAMERA

Country Status (4)

Country Link
EP (1) EP0931381A1 (en)
JP (1) JP2001505729A (en)
FR (1) FR2754656B1 (en)
WO (1) WO1998017002A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110518909A (en) * 2019-08-15 2019-11-29 中国科学院新疆天文台 A kind of calibration method of multicore analog-digital converter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1186477B (en) * 1985-12-19 1987-11-26 Sgs Microelettronica Spa METHOD AND APPARATUS FOR COMBINATION PLATE FOR MODULATION OF PULSE CODE HAVING A PERFECTED AUTO-ZERO CIRCUIT
FR2669439B1 (en) * 1990-11-21 1993-10-22 Commissariat A Energie Atomique NUCLEAR DETECTION METHOD WITH CORRECTION OF BASIC POTENTIAL AND APPARATUS (ESPECIALLY GAMMA-CAMERA).

Also Published As

Publication number Publication date
EP0931381A1 (en) 1999-07-28
FR2754656A1 (en) 1998-04-17
WO1998017002A1 (en) 1998-04-23
JP2001505729A (en) 2001-04-24

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Legal Events

Date Code Title Description
ST Notification of lapse