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Measured performance characteristics of a solid‐state linear detector array
Author(s) -
Sones Richard A.,
Morgan Douglas R.,
Tesic Mike M.,
Mattson Rodney A.
Publication year - 1985
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.595770
Subject(s) - detector , scintillator , optical transfer function , preamplifier , optics , photodiode , detective quantum efficiency , quantum efficiency , optoelectronics , x ray detector , physics , sensitivity (control systems) , photon counting , particle detector , materials science , image quality , electronic engineering , amplifier , cmos , computer science , engineering , artificial intelligence , image (mathematics)
Experimental studies of a solid‐state linear detector array developed for a prototype scanning slit digital chest radiographic unit have been completed. The detector consists of a strip of scintillating material, optically coupled to a linear silicon photodiode array. Measured performance characteristics of the detector, such as sensitivity, modulation transfer function, and detective quantum efficiency, are presented for several different scintillators. Results indicate that direct x‐ray absorption events in the silicon photodiode can degrade detective quantum efficiency. Results also indicate that the inexpensive preamplifier circuits used in the digital chest prototype contribute negligible noise at diagnostic x‐ray photon fluence rates.