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Calibration Process for DVS

A cumulative dose response calibration

curve is obtained for a specific lot by

irradiating a statistically significant

representative sample from the lot up to

80Gy

(

maximum dose range of the

dosimeter

).

Dose response curve

Verified by UW-ADCL (sample lot sent for testing)

Calibration is valid for use with daily doses of 150-250 cGy

Reported accuracy for each lot has a calibration certificate with values within:

<5.5% (2σ) up to 20 Gy

<6.5% (2σ) up to 74 Gy (accuracy decreases for doses > 74 Gy).

Lot Dose Response - RADFET Radiation Sensitivity

0.2

0.25

0.3

0.35

0.4

0.45

0.5

201 1004 2008

3008 4009 5011 6018 7026 8036

Cumulat ive Dose ( cGy)

Radiation Sensitivity

(mV/cGy)

Joanna Cygler, MOSFET dosimetry, AAPM Summer School, 2009