Title :
A gamma-ray imager with multiplexer readout for use in ultra-high-resolution brain SPECT
Author :
Barber, H.B. ; Barrett, H.H. ; Dereniak, E.L. ; Hartsough, N.E. ; Perry, D.L. ; Rogulski, M.M. ; Woolfenden, J.M. ; Young, E.T. ; Roberts, P.C.T.
Author_Institution :
Arizona Univ., Tucson, AZ, USA
Abstract :
An ultra-high-resolution brain SPECT (single photon emission computed tomography) system for brain imaging which utilizes a multiple pinhole collimator and many modular detectors each composed of an array of semiconductor detectors read out by a monolithic integrated circuit called a multiplexer is being developed. The modular detectors, being passive integrators, can detect individual gamma rays with good energy resolution. They will also have submillimeter spatial resolution and high count-rate capability. It has been demonstrated that semiconductor detectors with multiplexer read-out act as gamma ray detectors
Keywords :
biomedical equipment; brain; computerised tomography; medical image processing; monolithic integrated circuits; multiplexing equipment; radioisotope scanning and imaging; semiconductor counters; array; brain imaging; count-rate capability; energy resolution; gamma ray detectors; gamma-ray imager; individual gamma rays; modular detectors; monolithic integrated circuit; multiple pinhole collimator; multiplexer readout; passive integrators; semiconductor detectors; single photon emission computed tomography; submillimeter spatial resolution; ultra-high-resolution brain SPECT; Brain; Gamma ray detection; Gamma ray detectors; Gamma rays; Monolithic integrated circuits; Multiplexing; Optical collimators; Optical imaging; Sensor arrays; Single photon emission computed tomography;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1992., Conference Record of the 1992 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-0884-0
DOI :
10.1109/NSSMIC.1992.301068
