A practical block detector for a depth encoding PET camera
- British Columbia Univ., Vancouver, BC (Canada). TRIUMF Facility
- CTI, Inc., Knoxville, TN (United States)
The depth-of-interaction effect in block detectors degrades the image resolution in commercial PET cameras and impedes the natural evolution of smaller, less expensive cameras. A method for correcting the measured position of each detected gamma ray by measuring its depth-of-interaction was tested and found to recover 38% of the lost resolution in a table-top 50 cm diameter camera. To obtain the desired depth sensitivity, standard commercial detectors were modified by a simple and practical process, which is suitable for mass production of the detectors. The impact of the detector modifications on central image resolution and on the ability of the camera to correct for object scatter were also measured.
- Research Organization:
- British Columbia Univ., Vancouver, BC (Canada). TRIUMF Facility
- Sponsoring Organization:
- British Columbia Univ., Vancouver, BC (Canada). TRIUMF Facility
- OSTI ID:
- 383078
- Report Number(s):
- TRI-PP-95-82; CONF-951073-23; ON: DE96013382
- Resource Relation:
- Conference: IEEE nuclear science symposium and medical imaging conference, San Francisco, CA (United States), 21-28 Oct 1995; Other Information: PBD: Oct 1995
- Country of Publication:
- United States
- Language:
- English
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