Abstract

In order to establish the data necessary for dimensioning treatment room shielding for the first gamma-knife in Austria, we made use of results of measurements taken from existing installations abroad. Since there are, however, no standardised rules for dimensioning gamma-knife suits we felt that further research was necessary. Thus we conducted measurements of the leakage radiation with closed shielding doors, and measured the dose rate in the treatment room using a Rando-Alderson phantom. This paper is intended as additional help for further installation of gamma-knives.

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