FR2360892A1 - -ray gamma-ray camera system for imaging of isotope distribution - esp. in human body, has collimator grating and pref. germanium detectors - Google Patents

-ray gamma-ray camera system for imaging of isotope distribution - esp. in human body, has collimator grating and pref. germanium detectors

Info

Publication number
FR2360892A1
FR2360892A1 FR7703621A FR7703621A FR2360892A1 FR 2360892 A1 FR2360892 A1 FR 2360892A1 FR 7703621 A FR7703621 A FR 7703621A FR 7703621 A FR7703621 A FR 7703621A FR 2360892 A1 FR2360892 A1 FR 2360892A1
Authority
FR
France
Prior art keywords
collimator
ray
grating
esp
pref
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
FR7703621A
Other languages
French (fr)
Other versions
FR2360892B1 (en
Inventor
John W Steidley
Mark S Gerber
Don W Miller
Philip A Schlosser
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.)
Ohio State University
Original Assignee
Ohio State University
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 US05/656,304 external-priority patent/US4047037A/en
Priority claimed from US05/680,754 external-priority patent/US4055766A/en
Priority claimed from US05/680,755 external-priority patent/US4055765A/en
Priority claimed from US05/702,981 external-priority patent/US4061919A/en
Application filed by Ohio State University filed Critical Ohio State University
Publication of FR2360892A1 publication Critical patent/FR2360892A1/en
Application granted granted Critical
Publication of FR2360892B1 publication Critical patent/FR2360892B1/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
    • 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
    • A61B6/4258—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector for detecting non x-ray radiation, e.g. gamma radiation
    • 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

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Optics & Photonics (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine (AREA)
  • Measurement Of Radiation (AREA)

Abstract

The incident energy passes through the grating collimator and thus forms in its original pattern upon a large number of detector components lying in a plane behind the collimator. Each detector component is typically of high purity p-Ge made by applying an n-contact onto one side and a p-contact onto the opposite side of a flat rectangular crystal. The two faces are grooved in parallel lines but mutually at right angles on the opposite faces. In this way, semiconductor strips are formed on both sides. These two sets of strips are connected to series resistors connected respectively to preamplifier stages, which thus give coordinate output signals in the x and y directions. A voltage is applied across the system, so that each detector component resolves the absorbed photons. The charge values corresp. to the output signals, are summated to give the energy level for the spatial data and energy data. The resolution of the system is obtd. by the collimator grating, which ensures that only radiation which is incident perpendicularly to the collimator passes through, oblique radiation being eliminated and absorbed. The appts. provides high resolution due to the design of the collimator and in addition provides a rapid and simultaneous image.
FR7703621A 1976-02-09 1977-02-09 -ray gamma-ray camera system for imaging of isotope distribution - esp. in human body, has collimator grating and pref. germanium detectors Granted FR2360892A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US05/656,304 US4047037A (en) 1976-02-09 1976-02-09 Gamma ray camera for nuclear medicine
US05/680,754 US4055766A (en) 1976-04-27 1976-04-27 Control system for gamma camera
US05/680,755 US4055765A (en) 1976-04-27 1976-04-27 Gamma camera system with composite solid state detector
US05/702,981 US4061919A (en) 1976-07-06 1976-07-06 Gamma camera system

Publications (2)

Publication Number Publication Date
FR2360892A1 true FR2360892A1 (en) 1978-03-03
FR2360892B1 FR2360892B1 (en) 1983-12-16

Family

ID=27505291

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7703621A Granted FR2360892A1 (en) 1976-02-09 1977-02-09 -ray gamma-ray camera system for imaging of isotope distribution - esp. in human body, has collimator grating and pref. germanium detectors

Country Status (4)

Country Link
JP (1) JPS534389A (en)
DE (1) DE2705222A1 (en)
FR (1) FR2360892A1 (en)
NL (1) NL7700766A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS552705B2 (en) * 1973-08-03 1980-01-22
JPS5154359A (en) * 1974-11-06 1976-05-13 Murata Manufacturing Co NIJIDENSHIZO BAISOCHI

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
EXBK/64 *
EXBK/74 *
EXBK/75 *

Also Published As

Publication number Publication date
FR2360892B1 (en) 1983-12-16
JPS534389A (en) 1978-01-14
DE2705222A1 (en) 1977-08-11
NL7700766A (en) 1977-08-11

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Legal Events

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