Microdosimetric Measurements of Ionization by Monoenergetic Photons

Publisher Website
Google Scholar
Abstract
Microdosimetric event distributions for monoenergetic photons at 8 primary photon energies between 12-1250 keV were determined from measurements of ionization with a wall-less proportional counter. Event spectra were taken at simulated cavity diameters of 0.24, 0.48, 0.96, 1.9, 3.9 and 7.7 .mu.m. Distributions of dose in lineal energy density, the microdosimetric equivalent of LET [linear energy transfer] were displayed as functions of site diameter and photon energy. The frequency mean and dose mean of lineal energy density were calculated and their behavior as a function of primary photon energy was discussed and compared with elementary theoretical predictions.

This publication has 0 references indexed in Scilit: