Abstract
The influence of electron and gamma radiation on the bottom sediments of Sorbulak Lake was investigated. It is shown that irradiation with both electrons and gamma quanta changes significantly the dependence of intensity (I) on time (t). From the curves of intensity versus time, regularities were obtained which have the same character both for the unirradiated and for the irradiated biomaterial. Curve dependencies I (t) are satisfactorily described within the framework of the exponential model.