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Dosimetry for IMRT

Dosimetry for IMRT

Dosimetry for IMRT

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Composite p Field Calibration<br />

Uses a plan-class specific reference field, fpcsr<br />

Q Co�60<br />

w D,w Q Q<br />

D<br />

pcsr<br />

� M �N �k �k<br />

k<br />

pcsr<br />

�<br />

(D/ M)<br />

Q<br />

pcsr<br />

w<br />

Q Q<br />

(D/ M) w<br />

pcsr<br />

fpcsr<br />

Corrects <strong>for</strong> the differences between the conditions of field size,<br />

geometry, t and d bbeam quality lit of f the th conventional ti l reference f field fi ld<br />

and the plan-class specific reference field.

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