Title :
A High-Efficiency Multidetector System for Tumor Scanning
Author :
Kirby, J.A. ; Phelps, P.L. ; Armantrout, G.A. ; Sawyer, D. ; Beck, R.N.
Author_Institution :
Lawrence Livermore Laboratory, University of California Livermore, California 94550
Abstract :
A high-efficiency detector system developed especially for medical imaging has three speciall cut Ge(Li) coaxial detectors (total volume 249 cm3). At 122 keV, the peak efficiency is 93% of that of a 7.6 × 7.6 cm NaI (T1) detector. Degradation of the paralleled energy resolution is avoided and resolution is improved by 35% over that of conventional output-summing techniques by gating the detector outputs. In effect this multiplexes them to a single line output.
Keywords :
Biomedical imaging; Coaxial components; Detectors; Energy resolution; Germanium; Neoplasms; Preamplifiers; Signal resolution; Solid state circuits; Timing;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1976.4328302
