Journal
NUKLEONIKA
Volume 65, Issue 2, Pages 89-94Publisher
INST NUCLEAR CHEMISTRY TECHNOLOGY
DOI: 10.2478/nuka-2020-0013
Keywords
CR-39; High background radiation area; RADUET; Radon; Thoron; Thoron progeny
Categories
Funding
- RISET PRO (Indonesian Government Scholarship)
- Japan Society for Promotion of Science KAKENHI [18KK0261]
- Grants-in-Aid for Scientific Research [18KK0261] Funding Source: KAKEN
Ask authors/readers for more resources
The exposure from radon, thoron, and thoron progeny was measured for 45 dwellings in high background radiation area in Takandeang, Indonesia with ambient dose equivalent rate ranging from 0.34 mu Sv.h(-1) to 1.90 mu Sv.h(-1) . The measurement was taken using passive radon and thoron discriminative detector and thoron progeny detector. This measurement was taken from November 2018 to October 2019, and within one month the detector would be replaced with a new detector. The concentrations of radon, thoron, and thoron progeny were calculated as 42-490 Bq.m(-3 ), 20-618 Bq.m(-3) , and 4-40 Bq.m(-3) , respectively. The concentrations for outdoor were 49-435 Bq.m(-3) , 23-457 Bq.m(-3) , and 4-37 Bq.m(-3) , respectively, and the annual effective dose was 9.8-28.6 mSv.y(-1). Based on the result of Spearman's correlations analysis between the indoor radon and thoron concentrations and between the indoor thoron progeny and thoron concentrations, we suggest that exposure to thoron cannot be predicted from exposure to radon, and the equilibrium equivalent thoron concentration has a large uncertainty when it is estimated from thoron concentration assuming a single thoron equilibrium factor.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available