Development of new high-sensitive LiF thermoluminescent dosemeter

Briefly described is the technology of the new LiF, phosphorus production containing additions of CuF2, MgCl2 and ammonium fluoride. Presented are the results of the investigation of physical and dosimetrical properties of new phosphorus. The analysis of the results obtained has shown that new phosphoruses with three additions are 23 time better in sensitivity than the phosphoruses produced by the ''Harshow TLD-600 LiF'' firm. It is found out that the dependence of LiF(Mg, Cu, P) phosphorus sensitivity is of a linear character in the range of doses from 5 mP to 103 P. Studied is the effect of mechanical vibration on the intensity of radiothermoluminescence. The data presented show that the glow peak of tribo-Th is at 347 deg C. Thus, irradiated phosphorus is carried out at temperatures lower than 270 deg C. Tribo-Th does not practically effect on the dose change