Position (cm) OSL Mean Value(mSv) GM Mean Reading(mSv)* Hp10  Hp007  30 1.67 1.9 1.32 50 0.59 0.77 0.53 100 0.14 0.18 0.15 *The mR reading was converted by 9.63 (mSv/R) to mSv.

Table 1: The mean OSL and GM reading value converted to equvalent dose under calibration geometry with I-131 source.