Title :
Conductor-resistor-semiconductor avalanche diodes for scintillation light detection: medical applications
Author :
Antich, P. ; Parkey, R. ; Tsyganov, E. ; Zinchenko, A.
Author_Institution :
Southwestern Med. Center, Texas Univ., Dallas, TX, USA
Abstract :
Novel avalanche photodiodes (APD) working in a self-limiting mode of operation are tested. This mode provides for stable operation of a conductor-resistor-semiconductor (CRS) APD with a gain of 104-105. Based on test results, an improved APD design is suggested to provide a very high quantum efficiency across a broad wavelength spectrum. The concept of a compact positron emission tomography (PET) device based on Lu2SiO5:Ce (LSO) scintillating crystals and CRS APD is discussed. A point spread function with RMS of about 0.5 mm is predicted for a 18F tracer isotope
Keywords :
avalanche photodiodes; cerium; lutetium compounds; positron emission tomography; solid scintillation detectors; 18F tracer isotope; F; Lu2SiO5:Ce; PET; avalanche photodiodes; compact positron emission tomography; conductor-resistor-semiconductor avalanche diodes; medical applications; point spread function; quantum efficiency; scintillating crystals; scintillation light detection; selflimiting mode; stable operation; Conductivity; Optical films; Optical surface waves; P-i-n diodes; Positron emission tomography; Semiconductor diodes; Silicon carbide; Solid scintillation detectors; Substrates; Testing;
Conference_Titel :
Nuclear Science Symposium, 1998. Conference Record. 1998 IEEE
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-5021-9
DOI :
10.1109/NSSMIC.1998.775168
