CALCULATED ANGULAR RESPONSES OF AN RPL DOSEMETER TO PHOTON AND BETA RADIATION

The calculated dose equivalent response as a function of the angle has been examined for the radiophotoluminescent (RPL) glass dosemeter that was exposed to narrow series X-ray, N-60, N-80, N-100, N-150, N-200, N-250, N-300, photon sources (Co-60 and Cs-137) and beta-ray emitter (Sr-90/Y-90) while mounted on an ISO water slab phantom. The angular dose equivalent responses H-p(10) and H-p(0.07) were calculated using the Monte Carlo MCNPX code. The RPL dosemeter and the phantom were rotated in the horizontal and vertical planes from a variety of angles of interest. The results were compared with the experimental data. Good agreement was found between the measured and calculated values of the relative dose equivalent angular responses of the RPL dosemeter.