Gonadal Dose Obtained from Treatment of Nasal Carcinoma by Ionizing Radiation

Publisher Website
Google Scholar
Abstract
Gonad dose from high-energy X- and .gamma.-radiation treatments of nasopharyngeal carcinoma in both sexes was measured with 2 Rando phantoms. Emphasis is placed on the energy distribution of scattered radiation to the gonad by means of half-value layers with CaSO4:Dy thermoluminescent dosimeters. Other related factors such as attenuation of scattered radiation in tissue, orientation and energy of primary beam, field size, dose rate, given dose and tumor dose are discussed. For 60Co .gamma. rays, the gonad dose was 9.18 .+-. 0.60 rad for males and 16.22 .+-. 0.36 rad for females. For a 60Co .gamma.-ray and 10-MV X-ray combination, the total gonad dose was 5.47 .+-. 0.42 rad for males and 7.76 .+-. 0.16 rad for females. When the gonad dose was normalized to a given dose of 7000 rad, for 60Co .gamma.-rays, the gonad dose was 0.131% of the given dose for males and 0.232% for females. For a 60Co .gamma.-ray and 10-MV X-ray combination, the gonad dose was 0.078% of the given dose for males and 0.111% for females.

This publication has 0 references indexed in Scilit: