Single photon imaging with electronic collimation
Conference
·
· IEEE Trans. Nucl. Sci.; (United States)
OSTI ID:6083932
A unique 4x4 germanium detector array has been fabricated to image single photon emitters. Collimation is achieved electronically from a sequential interaction of the emitted radiation between the germanium detector and a scintillation camera. An iteratie reconstruction algorithm has been used to remove multiplexing in the acquired counts, thereby producing a conical projection image from multiple views. Computer simulation studies indicate that even though the degradation in signal to noise ratio during the demultiplexing step would reduce the sensitivity by about a factor of two, a large gain in sensitivity over conventional SPECT systems would result from electronic collimation.
- Research Organization:
- Univ. of Southern California, Los Angeles, CA
- OSTI ID:
- 6083932
- Report Number(s):
- CONF-841007-
- Conference Information:
- Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-32:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
CAMERAS
COLLIMATORS
COMPUTERIZED SIMULATION
COMPUTERIZED TOMOGRAPHY
DIAGNOSTIC TECHNIQUES
EMISSION COMPUTED TOMOGRAPHY
GAMMA CAMERAS
GE SEMICONDUCTOR DETECTORS
IMAGE PROCESSING
MEASURING INSTRUMENTS
PROCESSING
RADIATION DETECTORS
RESOLUTION
SEMICONDUCTOR DETECTORS
SENSITIVITY
SIGNAL-TO-NOISE RATIO
SIMULATION
SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY
TOMOGRAPHY
62 RADIOLOGY AND NUCLEAR MEDICINE
CAMERAS
COLLIMATORS
COMPUTERIZED SIMULATION
COMPUTERIZED TOMOGRAPHY
DIAGNOSTIC TECHNIQUES
EMISSION COMPUTED TOMOGRAPHY
GAMMA CAMERAS
GE SEMICONDUCTOR DETECTORS
IMAGE PROCESSING
MEASURING INSTRUMENTS
PROCESSING
RADIATION DETECTORS
RESOLUTION
SEMICONDUCTOR DETECTORS
SENSITIVITY
SIGNAL-TO-NOISE RATIO
SIMULATION
SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY
TOMOGRAPHY