During the past three decades many fluoro-glass readers have been developed to increase the sensitivity and reproducibility of the measuring devices. However almost all of them are of special design which can not be used in other areas except glass dosimetry. In our dosimetry systems we have utilized commercially available fluorescence spectrophometers (Hitachi Model 650-60 and Shimadzu QR-50). During one year of use they have provided a realiable and accurate dosimetric tool which afforts cumulative dose range of 10

-5

~10

2

Gy (10

-2

Gy=1 rad).