Event localization in a continuous scintillation detector using digital processing
Conference
·
· IEEE Trans. Nucl. Sci.; (United States)
OSTI ID:5886541
The authors are currently developing a positron emission tomograph with multislice capability based on a single-slice prototype recently completed. For this tomograph they had to develop a two-dimensionally position-sensitive detector with several features not commonly found in similar detectors. The new multislice tomograph will consist of six detectors arranged in a hexagon. Each 2-D detector uses a NaI(T1) scintillator with a detector area of 110 x 470 mm and a thickness of 25 mm. The light emitted by the crystal is detected by an array of 30 square photomultipliers (50 x 50 mm) and the signals from the photomultipliers (PMT) are digitized as described below. Digitizing each photomultiplier signal provides greater processing flexibility for accurate determination of the location of an interaction within the crystal.
- Research Organization:
- Hospital of the Univ. of Pennsylvania, Dept. of Radiology, 3400 Spruce Street, Philadelphia, PA 19104
- OSTI ID:
- 5886541
- Report Number(s):
- CONF-851009-
- Conference Information:
- Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-33:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
440101 -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
ACCURACY
COMPUTERIZED TOMOGRAPHY
CRYSTALS
DATA PROCESSING
DESIGN
DIAGNOSTIC TECHNIQUES
DIMENSIONS
EMISSION COMPUTED TOMOGRAPHY
MEASURING INSTRUMENTS
NAI DETECTORS
OPERATION
PHOTOMULTIPLIERS
PHOTOTUBES
POSITION SENSITIVE DETECTORS
POSITRON COMPUTED TOMOGRAPHY
PROCESSING
RADIATION DETECTORS
SCINTILLATION COUNTERS
SIGNALS
SOLID SCINTILLATION DETECTORS
THICKNESS
TOMOGRAPHY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
ACCURACY
COMPUTERIZED TOMOGRAPHY
CRYSTALS
DATA PROCESSING
DESIGN
DIAGNOSTIC TECHNIQUES
DIMENSIONS
EMISSION COMPUTED TOMOGRAPHY
MEASURING INSTRUMENTS
NAI DETECTORS
OPERATION
PHOTOMULTIPLIERS
PHOTOTUBES
POSITION SENSITIVE DETECTORS
POSITRON COMPUTED TOMOGRAPHY
PROCESSING
RADIATION DETECTORS
SCINTILLATION COUNTERS
SIGNALS
SOLID SCINTILLATION DETECTORS
THICKNESS
TOMOGRAPHY