Affiliation:
1. Regional Institute of Medical Sciences Department of Radiation Oncology, , Imphal, Manipur 795004, India
Abstract
Abstract
An assessment of radioactivity concentration of reinforced cement concrete types of house was conducted in the valley region of Manipur, India. The average radioactivity concentration of 226Ra, 232Th, and 40K of portland cements are 39 (range: 32–52) Bqkg−1, 36 (range: 22–62) Bqkg−1, and 1812 (1254–2424) Bqkg−1; for concrete are 36 (range: 26–45) Bqkg−1, 65 (range: 45–86) Bqkg−1, and 660 (639–681) Bqkg−1; for sand are 45 (30–61) Bqkg−1, 114 (range: 55–212) Bqkg−1, and 1859 (range: 1413–2232) Bqkg−1; and for bricks are 30 (range: 24–37) Bqkg−1, 148 (range:79–184) Bqkg−1, and 1444 (range: 1093–2103) Bqkg−1, respectively. The annual effective dose was observed with an average value of 1.9 (range: 0.9–3.3) mSvy−1. However, gamma index was observed with an average value of 1.1 (range: 0.5–2.0).
Publisher
Oxford University Press (OUP)
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