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Chapter 9.2 on TPS Commissioning
9.2.6
Influence of shields, missing tissue, and inhomogeneities
(abridged)
Presently, only simple correction algorithms are applied in some TPS. The
effect of these algorithms must be verified and documented.
Published shielding or tissue inhomogeneity data are based on MC.
Validation of these MC data should be done by comparing with measured
data, such as those obtained using TLD or small ionisation chambers.
Algorithms are under development to account for scatter conditions and
tissue inhomogeneities.
Validation of these algorithms should be done in a similar way to the method
used for checking the shielding algorithms.
yes
ouch!
ouch!
yes
yes
ESTRO Booklet N
0
8 (2004)