2024-2025 / 3107
8/31/16
The most common types of TLDs are
phosphors such as lithium fluoride (LiF),
lithium borate (Li2 B4 07 ), calcium sulphate
(CaSO4) and calcium fluoride (CaF2 )
doped with impurities called activators
Li based TLD are mainly used for soft tissue
equivalent, and Ca based for bone
Soft tissue or lung
Bone
LiF (Mg, Ti)
CaSO4 : Mn
LiF (Mg, Ti, Na)
CaSO4 : Dy
Li2 B4 07 : Mn
CaF2 : Mn
Li2 B4 07 : Cu
CaF2 : Dy
Thermo-luminescence dosimeter (TLD)