TL Dosimetry in High LET Radiotherapeutic Fields

摘要: A typical therapeutic high LET particle field is generated from overlapping beams of different ranges and directions. The contributions vary across the field, which leads to biological effectiveness therefore has be accounted for in treatment planning. dosemeters employed have generate dose information independent give some on composition. They also should very small order not change range particles considerably. TL been considered use such fields because their size, sensitivity possible as vivo dosemeters. most materials, however, decreases with increasing LET. But materials two well separated glow peaks like CaF 2 :Tm or LiF efficiency one either increases remains constant up a certain value. Such can used determine average simultaneously. In fast neutron they allow gamma measured separately. review given dosimetric properties negative pion, proton, helium, neon fields.