Journal article
Characteristics of an 18 MV photon beam from a Therac 20 Medical Linear Accelerator
Abstract
The 18 MV photon beam characteristics of a Therac 20 Medical Linear Accelerator manufactured by Atomic Energy of Canada Ltd, are presented. Tissue phantom ratios (TRP's) and percent depth dose data are given; for a 10 x 10 cm field, the percent depth dose at a depth of 10 cm is 78.5 (SSD 100 cm). The relative dose factors (RDF'S) are given and are analyzed to elucidate the relative contributions from phantom scatter, collimator scatter, and …
Authors
Patterson MS; Shragge PC
Journal
Medical Physics, Vol. 8, No. 3, pp. 312–318
Publisher
Wiley
Publication Date
May 1981
DOI
10.1118/1.594833
ISSN
0094-2405