Abstract
Abstract
The harsh environmental conditions in the marine environment pose various
constraints on developing efficient instruments to carry out long-term, in situ
radioactivity measurements. In addition, the strong attenuation of γ-rays
in the water medium, makes remote sensing of such radiation a challenging task.
In the present work, we report on the efforts to find the optimal characteristics
and deployment scenarios of a new prototype γ-ray instrument based on a
small-size CZT crystal enclosed in seal-tight housing to be deployed for operation
in large depths. Lab experiments and detailed Monte Carlo simulations were combined
to validate the actual crystal dimensions, determine its efficiency and energy
resolution, as well as establish the minimum detectable activity values of the
instrument in different configurations and scenarios.