Premium
CT alignment probe for the dose profile insert
Author(s) -
Schneiders Nicholas J.,
Glaze Sharon A.,
Bushong Stewart C.
Publication year - 1981
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 - 10.1118/1.594966
Subject(s) - stack (abstract data type) , thermoluminescent dosimeter , imaging phantom , dosimeter , dosimetry , materials science , optics , insert (composites) , medical imaging , medical physics , nuclear medicine , physics , computer science , medicine , artificial intelligence , composite material , programming language
One of the most accepted methods of characterizing the dose in computed tomograhy (CT) is by measuring the dose profile. Thermoluminescent dosimeters (TLD's) arranged in a stack are scanned in a plexiglass phantom. Unfortunately with this system there is no assurance that the scan properly intercepts the stack. Mispositioning will not be apparent until the TLD's are read, entailing at least a 24 h delay before rescanning. We have designed a simple alignment probe that insures that the scan will be centered on the stack to within 1 mm.