903 / 1228
TLD: influence factors
•
TLD response is not significantly affected from environmental conditions
(normal room temperatures, moderate exposure to light).
BUT
Traps are not stable @ room temperatures and annealing @ 400
0
C for 1 h is
required to ensure trap stability.
F di
ff t l
T k Thi
b iti t d b li i ti
a ng can a ec ow pea s.
s can e m ga e y e m na ng
corresponding traps (annealing @ 80
0
C for 24 h pre-irradiation) or
emptying them before readout (annealing @ 100
0
C for 2 h pre-irradiation
and 10 min post-irradiation)
•
background correction is necessary for PM dark current and TL non related
-
to D (the latter is reduced with N
2
gas purging during readout)
•
TLD response is dose rate independent