The Possibility to Use Natural Material as a Measure of Ionizing Radiation

Abstract

The suitability of gabbro for the gamma radiation dosimetry using thermo- luminescence (TL) technique has been investigated. Its properties are systematically investigated utilizing measurements of natural and laboratory induced blue TL emission band, annealing effects, and storage effects. The emission of the natural blue band exhibited broad peak at ~ 342oC. The TL- dose response has a linear behavior over the dose range 0.1Gy-10Gy followed by a supralinear one at high dose level 100Gy-700Gy.The fading in TL signal over two weeks of storage period at room temperature was not more than 41%. From our obtained results it is possible to conclude that the natural gabbro is a suitable material for accident and environmental dosimetric applications.. Keywords: Thermoluminescence; Gabbro; Gamma; Fading.