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Calibration of MU-chamber

MU-chamber

is a transmission ionization chamber

electronics generates ‘counts’ (MUs)

after a pre-set charge Q

MU

measured

Calibration of MU-chamber:

electronics is tuned such that

1MU/Q

MU

corresponds with

a dose of 1 cGy in H

2

0

in

reference

conditions

dose measured

with

calibrated

ionization chamber