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TLD
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