In vivo detection, localization, and measurement of radionuclides in man: a detection system for the localization and measurement of small amounts of photon emitters. Progress report, September 1, 1978-May 15, 1979
The design, construction, and testing of a photon detection system which will yield, simultaneously, information proportional to both the magnitude and location of sources of radioactivity were undertaken. The operating principle of the detector system, active collimation, allows spatial resolution by utilizing the crystal elements themselves as the collimating device; hence a greater counting efficiency is attainable than with other currently available systems. The differences in characteristics of various crystals are utilized as the means of separating events occurring in each of five crystals. Mathematical processing of the counts from the individual crystals is then employed in conjunction with their geometric relationship to develop both positional data and to quantify the amount of radioactivity. By utilizing crystal detector elements in an active collimation configuration and incorporating them in an array which permits these crystals to be alternately advanced and retracted in a programmed, ordered manner, a high degree of spatial resolution is believed achievable without unduly compromising system sensitivity. Experiments were planned with a detector of optimized design to provide data on the ultimate performance that can be achieved with an N-element detector array. The experiments include development of the optimal crystal configuration, studies to ascertain the most efficient crystal shape, and the evolving of data processing techniques to translate detector response into precise source position information.
- Research Organization:
- New York Univ., NY (USA). Medical Center
- DOE Contract Number:
- AS02-78EV04957
- OSTI ID:
- 6200158
- Report Number(s):
- DOE/EV/04957-1; COO-4957-1; TRN: 81-014151
- Country of Publication:
- United States
- Language:
- English
Similar Records
In vivo detection, localization, and measurement of radionuclides in man: a detection system for the localization and measurement of small amounts of photon emitters. Progress report, September 1, 1979-December 1, 1980
In vivo detection, localization and measurement of radionuclides in man: a detection system for the localization and measurement of small amounts of photon emitters. Final report
Related Subjects
54 ENVIRONMENTAL SCIENCES
62 RADIOLOGY AND NUCLEAR MEDICINE
COLLIMATORS
CRYSTALS
OPTICAL PROPERTIES
SOLID SCINTILLATION DETECTORS
PERFORMANCE TESTING
CESIUM IODIDES
DATA PROCESSING
DESIGN
FABRICATION
PHOTOMULTIPLIERS
PULSE DISCRIMINATORS
RADIATION MONITORS
SCINTISCANNING
SODIUM IODIDES
SPATIAL RESOLUTION
ALKALI METAL COMPOUNDS
CESIUM COMPOUNDS
COUNTING TECHNIQUES
DIAGNOSTIC TECHNIQUES
DISCRIMINATORS
ELECTRONIC CIRCUITS
HALIDES
HALOGEN COMPOUNDS
INORGANIC PHOSPHORS
IODIDES
IODINE COMPOUNDS
MEASURING INSTRUMENTS
MONITORS
PHOSPHORS
PHOTOTUBES
PHYSICAL PROPERTIES
PROCESSING
PULSE CIRCUITS
RADIATION DETECTORS
RADIOISOTOPE SCANNING
RESOLUTION
SCINTILLATION COUNTERS
SODIUM COMPOUNDS
TESTING
440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments
440102 - Radiation Instrumentation- Radiation Dosemeters
500300 - Environment
Atmospheric- Radioactive Materials Monitoring & Transport- (-1989)
550601 - Medicine- Unsealed Radionuclides in Diagnostics