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 detectorsInfo
- 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
Links
- 230000005251 gamma ray Effects 0.000 title 1
- 229910052732 germanium Inorganic materials 0.000 title 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 title 1
- 238000003384 imaging method Methods 0.000 title 1
- 230000005855 radiation Effects 0.000 abstract 2
- 239000013078 crystal Substances 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
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.
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)
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 |
-
1977
- 1977-01-26 NL NL7700766A patent/NL7700766A/en not_active Application Discontinuation
- 1977-02-07 JP JP1236677A patent/JPS534389A/en active Pending
- 1977-02-08 DE DE19772705222 patent/DE2705222A1/en not_active Withdrawn
- 1977-02-09 FR FR7703621A patent/FR2360892A1/en active Granted
Non-Patent Citations (3)
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
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |