الرئيسية / الفعاليات العلمية / تحديد فعالية جسيمات الفا في نماذج من تربة كلية الزراعة في جامعة كربلاء, العراق

تحديد فعالية جسيمات الفا في نماذج من تربة كلية الزراعة في جامعة كربلاء, العراق

ABRRAR ABBAS IBRAHIM1

, ABDALSATTAR KAREEM HASHIM1 AND ALI ABID

ABOJASSIM*
Department of Physics, Faculty of Science, University of Kufa, Al-Najf, Iraq
*(e-mail : ali.alhameedawi@uokufa.edu.iq; Mobile : 07801103720)
(Received : September 16, 2020; Accepted : November 12, 2020)
ABSTRACT
Alpha activity in 20 soil samples of the University of Kerbala (Agricultural College) was determined
using CN-85 detector. Results showed that radon concentrations varied from 1020.375±3.54 to
7596.125±9.68 Bq/m3

with an average of 4308.25±7.17 Bq/m3

. AED varied from 0.825±0.10 to 6.142±0.27
mSv/y with an average of 3.48±0.203 mSv/y. Radium content in Bq/kg varied from 0.025±0.01 to 0.188±0.04
with an average of 0.1064±0.035. The results of EM
and ES
varied from 0.19±0.04 to 1.42±0.13 mBq/kg/h
with an average of 0.80±0.0981 mBq/kg/h and from 8.93±0.33 to 66.53±0.90 mBq/m2/h with an average
of 35.70±0.67 mBq/m2/h, respectively. However, uranium activity in unit’s ppm and Bq/kg varied from
0.06±0.02 to 0.45±0.07 with an average of 0.25±0.055 and from 0.74±0.09 to 3.15±0.18 with an average of
3.15±0.18, respectively. Thus, the results of this study were less than the world average, which would
not pose a significant risk to human beings.
Key words : Alpha activity, CN-85, soil, agricultural college

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