New radon and gamma device using TLD and SSNTD to carry out monitoring in the environment

摘要

The research program, that we are leading, concerns and takes into consideration the potential risk of the natural and artificial radio-elements in the environment and particularly to consider their migration from environment to the people and with special respect to radon effects. To begin these investigations, we developed a new passive detectors using two solid nuclear track detector techniques: thermo-luminescent detectors (TLDs) (gamma measuring) and solid state nuclear track detectors (SSNTDs) (alpha measuring). The characteristics of the cell provide for alpha (SSNTD - LR115) and gamma- radioactivity (TLD-CaSO4:Dy) measuring in different soil depths. The used technologies are with a low priced. The instrumentation has been first validated in laboratory to qualify precisely its response and then, we have performed the survey for one site in Bulgaria. [References: 4]