Abstract
Lithium-silicon glasses with different Nd-U contents were fused in the glass laboratory of NRC. The response of these glasses to 60-Co gamma rays studied. Experimental results indicated in a linear response in the change of optical denisty as a function of gamma ray absorbed dose from 10 mGy to 15 KGy. It was found that the addition of Nd and U to this type of glasss increased its sensitivity to low levels of gamma ray absorbed dose. These glasses were also examined as fission fragment track detectors. It was found that this type of glass is suitable for neutron fluence measurements in the range from 10
9 to 10
12n.cm
-2. Fading of the developed band (gamma rays) and fission fragment tracks (neutrons) were also investigated. This type of glass detectors may be recomended as integral dosimeter for external exposure during normal or abnormal conditions.