Abstract
A radiophotoluminescent silver-activated glass based on the (Li2O, B2O3) system instead of the usual metaphosphate matrix has been studied. By reduction of the amount of silver activator, glasses with an energy dependence comparable to LiF (sensitivity variation within ±10 to 30% between 10 keV and several MeV) have been prepared. Their weathering resistance has been unproved by additions of BeO. Maximum radiophotoluminescence (RPL) is developed by a heat treatment. More unusual dosimetric properties of such glasses are good stability even at high temperatures (up to 300–350°C), and a remarkable difference between the RPL and the absorption spectra obtained by the thermal neutron and gamma radiation. Also, the neutron induced RPL centers are less stable than the gamma radiation induced ones. RPL and absorption spectra as well as some other properties of these glasses have been studied in comparison with a conventional metaphosphate glass.
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