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shielded
diode
Unshielded
diode
Scanning results in a 5 MV X-ray beam using p-Si diodes.
Data from Scanditronix
Ion chamber
Unshielded
diode
Low energy in combination with large beams (here 5 MV and
40x40 cm
2
) displays the largest deviations for Si diodes.
Increasing fraction of
scattered low-energy
photons
Large fraction of
scattered low-energy
photons
Ion chamber
shielded diode