Title :
Development of a wavelength-shifting fibre gamma camera
Author :
Soares, A.J. ; Cullum, I. ; Miller, D.J. ; Royle, G.J. ; Speller, R.D.
Author_Institution :
Dept. of Med. Phys. & Bioeng., Univ. Coll. London, UK
Abstract :
A wavelength-shifting fibre (WSF) gamma camera was built and tested. A spatial resolution of 3.5 mm ~ 4 mm FWHM was achieved which is comparable to that of modern Anger cameras. Two CsI(Na) crystals were tested and both showed lower light output than expected. Hence a poor energy resolution of 23% FWHM was obtained. Simulation results predict a spatial resolution better than 3 mm if the WSF signals are three times higher than those obtained experimentally. Ways of achieving this goal are discussed
Keywords :
biomedical equipment; cameras; gamma-ray detection; radioisotope imaging; solid scintillation detectors; CsI(Na) crystals; CsI:Na; Monte Carlo simulations; detection efficiency; energy resolution; photon counting; position linearity; readout sensors; spatial resolution; wavelength-shifting fibre gamma camera; Cameras; Educational institutions; Energy resolution; Gamma rays; Nuclear medicine; Optical imaging; Optical surface waves; Physics; Prototypes; Spatial resolution;
Conference_Titel :
Nuclear Science Symposium, 1999. Conference Record. 1999 IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5696-9
DOI :
10.1109/NSSMIC.1999.845846
