Dose Course 2018_Flipping book

Calibration Process for DVS

Lot Dose Response - RADFET Radiation Sensitivity

• 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 ).

0.5

0.45

0.4

0.35

0.3

(mV/cGy)

0.25

0.2 Radiation Sensitivity

201 1004 2008

3008 4009 5011 6018 7026 8036

Cumulat ive Dose ( cGy)

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).

Joanna Cygler, MOSFET dosimetry, AAPM Summer School, 2009