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Dosimetry for IMRT

Dosimetry for IMRT

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Dose Calibration Correction Factor to<br />

GGet t DDose iin a Cli Clinical i l Field Fi ld<br />

M<br />

D<br />

Qclin � D<br />

Qmsr�� Qclin � D<br />

Qmsr�<br />

Qclin<br />

�k<br />

k<br />

w w Q w Q<br />

�<br />

(D/ M)<br />

Q<br />

w<br />

Q Q<br />

(D/ M) w<br />

clin<br />

clin msr<br />

msr M<br />

clin<br />

Q Qmsr<br />

In principle, the dose calibration correction factor would be<br />

different <strong>for</strong> each clinical measurement. Eventually, Monte Carlo<br />

treatment planning systems could compute kQ<br />

<strong>for</strong> both the<br />

clin<br />

patient and a QA phantom.

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