تحديد تراكيز البوتاسيوم k40 في عينات من الشاي باستخدام كاشف ايوديد الصوديوم

Abstract EN

In this study (10) different samples of tea which are available in local market, have been used to determine Potassium (K40) concentration by using UCS-20 with scintillation detector NaI(Tl) and connected to a computer instrument, and the detector efficiency is estimated taking into account the geometric arrangement of a value of 0.39%, found that the maximum value of the activity of radioactive potassium in the sample A are 408.3 Bq and the minume value in the sample J equal 184.0 Bq.

The radioactive potassium mass were ranged between 0.712 mg and 1.55 mg.

Were as the specific activity value for the samples where between 4023 Bq/Kg as maximum value for sample A and 1840 Bq/Kg as minimum value for sample J, and a balancing factor between the activity and potassium content in all samples is 0.0302 Bq / mg.