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Small field detector correction factors

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 clin msr

Q Q

Q Q spectrum

p

p

clin

Only different degree in CPE & spectral effects considered

fluence

msr

These result confirm previous conclusions that unshielded diodes a better choice of detector than shielded diodes.

The corrections for mini-ionization chambers used in this study (active volume between 0.015 cm 3 and 0.05 cm 3 ) were generally lower than 10% and for micro-chambers (active volume<0.015 cm 3 ) lower than 3% .

active volume > 0.1 cm 3 corrections of 20%-30% !

Azangwe et al Med. Phys. 41 (7), 2014