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Point in vivo dosimetry and IMRT

Calibration

Effective depth

:

The diodes will

be calibrated to give the dose at

a depth for which the CF

field

is

minimized

Calibration factor

:

Where R

M

is the detector

reading and Dc is the calculated

dose per MU.

Positioning

Expected reading

:

For a calculation point x in a

treatment head setting A.

diode