CALORIMETRIC DETERMINATION OF THE ABSORBED DOSE-TO-WATER BEAM QUALITYCORRECTION FACTOR K(Q) FOR HIGH-ENERGY PHOTON BEAMS

Citation
Sm. Vatnitsky et al., CALORIMETRIC DETERMINATION OF THE ABSORBED DOSE-TO-WATER BEAM QUALITYCORRECTION FACTOR K(Q) FOR HIGH-ENERGY PHOTON BEAMS, Medical physics, 22(11), 1995, pp. 1749-1752
Citations number
18
Categorie Soggetti
Radiology,Nuclear Medicine & Medical Imaging
Journal title
ISSN journal
00942405
Volume
22
Issue
11
Year of publication
1995
Part
1
Pages
1749 - 1752
Database
ISI
SICI code
0094-2405(1995)22:11<1749:CDOTAD>2.0.ZU;2-H
Abstract
A method has been developed for measuring photon beam quality correcti on factors k(Q) using direct transfer with a water calorimeter. k(Q) v alues were measured for beam qualities varying between 6 and 23 MV for a Capintec PR-06 and a PTW W30001 cylindrical ionization chamber. Mea sured values were intercompared with published sets of computed k(Q) v alues and agreement was found to be within measurement uncertainty (1% , one standard deviation).