910 / 1228
TLD: intrinsic energy dependence
)0( )0(
) ( ) (
)0 , (
QMQ TLDD
QMQ TLDD QQ rel
bqk
•
Davis et al.
down to 0.9 (0.6 % Type A uncertainty,
k
=1, x-ray beams, LiF:Mg,Ti).
•
Nunn et al.
down to 0.885 (3.5% combined standard
rel
bq
k
1
rel
bq
k
rel
bq
k
uncertainty,
k
=1, x-ray beams, LiF:Mg,Ti).
•
Carlsson Tedgren et al.
k
bq
down to 0.935 (1.9%
combined standard uncertaintiy,
k
=1, x-ray beams,
LiF M Ti) Th l
di
d t ti l diff
: g, .
ey a so scusse po en a erences
due to TLD handling and formulation, and expressed
concern regarding the applicability of determinations
obtained using x-ray beams to other photon fields.
Figure from: Nunn et al, Med. Phys. 38(8) 1859 (2008)
•
Reed et al.
= 0.883
±
0.011 (I-125), 0.870
±
0.012
(I-125 w. Ag), 0.871
±
0.013 (Pd-103) (combined
standard uncertainties,
k
=1 LiF:Mg,Ti).
rel
bq
k
•
Rodriquez and Rogers minimized the difference
between Λ measurements in the literature and MC
calculations and arrived at
= 0.931
±
0.013 (I-125)
d
±
(Pd )
rel
bq
k
1
rel
bq
k
an 0.922 0.022 -103 .
Figure from: Carlsson Tedgren et al, Med. Phys. 38(10) 3839 (2011)