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[en] Both image quality and health protection performance of 120 medicial CT machine across Shanxi province were tested and reviewed, with the used methods and gained results shown in this paper. Such certificated parameters of those equipment as space resolutin ratio, low contrast resolution ratio, dose index, CT value of water, degree of consistency, layer thickness derivation, posioning accuracy and bed displacement acurracy are lOO%, 99%, 91%, 94%, 94%, 93%, 95% and 97% respectively. (authors)
Journal
Radiation Protection Bulletin; ISSN 1004-6356; 
; v. 22(5); p. 33-35
; v. 22(5); p. 33-35