FR2361787A1 - Circuit pour le traitement des signaux d'une camera dite camera gamma - Google Patents

Circuit pour le traitement des signaux d'une camera dite camera gamma

Info

Publication number
FR2361787A1
FR2361787A1 FR7721194A FR7721194A FR2361787A1 FR 2361787 A1 FR2361787 A1 FR 2361787A1 FR 7721194 A FR7721194 A FR 7721194A FR 7721194 A FR7721194 A FR 7721194A FR 2361787 A1 FR2361787 A1 FR 2361787A1
Authority
FR
France
Prior art keywords
camera
circuit
processing signals
called gamma
attenuators
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.)
Granted
Application number
FR7721194A
Other languages
English (en)
Other versions
FR2361787B3 (fr
Inventor
Luigi Terra
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.)
SELO
Original Assignee
SELO
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 SELO filed Critical SELO
Publication of FR2361787A1 publication Critical patent/FR2361787A1/fr
Application granted granted Critical
Publication of FR2361787B3 publication Critical patent/FR2361787B3/fr
Granted 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
    • G01T1/161—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

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)
  • Nuclear Medicine (AREA)
  • Measurement Of Radiation (AREA)

Abstract

L'invention a pour objet une caméra de type Anger. Un cristal à scintillation 10 est observé par des phototubes il dont les signaux sont traita par des atténuateurs 19 qui sont des atténuateurs dynamiques ayant un facteur d'atténuation qui varie avec l'énergie de la radiation détectée. L'invention permet d'analyser des signaux ayant des niveaux extrêmes d'énergie très différents, à l'aide de circuits classiques.
FR7721194A 1976-08-10 1977-07-08 Circuit pour le traitement des signaux d'une camera dite camera gamma Granted FR2361787A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2618876 1976-08-10

Publications (2)

Publication Number Publication Date
FR2361787A1 true FR2361787A1 (fr) 1978-03-10
FR2361787B3 FR2361787B3 (fr) 1980-07-11

Family

ID=11218878

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7721194A Granted FR2361787A1 (fr) 1976-08-10 1977-07-08 Circuit pour le traitement des signaux d'une camera dite camera gamma

Country Status (3)

Country Link
DE (1) DE2734883A1 (fr)
FR (1) FR2361787A1 (fr)
GB (1) GB1526920A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5689115A (en) * 1995-11-24 1997-11-18 Elscint Ltd. Advanced nuclear medicine system

Also Published As

Publication number Publication date
FR2361787B3 (fr) 1980-07-11
GB1526920A (en) 1978-10-04
DE2734883A1 (de) 1978-02-16

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