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An evaluation of a fluorescent screen–isocon camera system for x‐ray imaging in radiology
Author(s) -
Nelson Robert S.,
Barbaric Zoran L.,
Gomes Antionette S.,
Moler Charles L.,
Deckard Michael E.
Publication year - 1982
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 - 10.1118/1.595050
Subject(s) - medical imaging , medical physics , nuclear medicine , fluorescence , computed radiography , optics , radiology , medicine , physics , computer science , computer vision , image quality , image (mathematics)
A large field format imaging system which utilizes a flat fluorescent screen rather than the traditional image intensifier as the primary x‐ray detector is discussed in this paper. A low light level image isocon camera is optically coupled to a rare‐earth screen. An overview of the isocon camera and its return beam mode of operation is included. Theoretical limitations to this approach to real time radiographic imaging are discussed in terms of system efficiency and signal‐to‐noise ratio (SNR) requirements. The viability of this concept for radiographic imaging is considered with respect to the image intensifier–camera unit. The merits of employing a CsI:Na screen as the primary detector and an isocon tube with an improved SNR are presented as potential areas for further investigation.