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Confirmation of a speculation concerning average tissue–air ratio determinations for rotational Co‐60 radiation therapy treatment planning
Author(s) -
Liu N. H.,
Miller M. P.,
Raeside D. E.,
Wizenberg M. J.
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 - 10.1118/1.595044
Subject(s) - radiation treatment planning , radiation therapy , radiation , tar (computing) , dosimetry , nuclear medicine , medicine , physics , optics , radiology , computer science , programming language
The question of the number of radii which are necessary to accurately determine the average tissue–air ratio (TAR) to be used in 60 Co rotational radiation therapy treatment planning was studied using actual patient contours. It was found that 12 radii adequately determine the average TAR for clinical purposes. Key words: TAR, 60 Co, rotational therapy