Laboratory Enrichment of Radioactive Assemblages and Estimation of Thorium and Uranium Radioactivity in Fractions Separated from Placer Sands in Southeast Bangladesh
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| 024 | 7 | 0 | |a 10.1007/s11053-014-9248-6 |2 doi |
| 035 | |a (NATIONALLICENCE)springer-10.1007/s11053-014-9248-6 | ||
| 245 | 0 | 0 | |a Laboratory Enrichment of Radioactive Assemblages and Estimation of Thorium and Uranium Radioactivity in Fractions Separated from Placer Sands in Southeast Bangladesh |h [Elektronische Daten] |c [Takayuki Sasaki, Mohammad Rajib, Masafumi Akiyoshi, Taishi Kobayashi, Ikuji Takagi, Toshiyuki Fujii, Md. Zaman] |
| 520 | 3 | |a The present study reports the likely first attempt of separating radioactive minerals for estimation of activity concentration in the beach placer sands of Bangladesh. Several sand samples from heavy mineral deposits located at the south-eastern coastal belt of Bangladesh were processed to physically upgrade their radioactivity concentrations using plant and laboratory equipment. Following some modified flow procedure, individual fractions were separated and investigated using gamma-ray spectrometry and powder-XRD analysis. The radioactivity measurements indicated contributions of the thorium and uranium radioactive series and of 40K. The maximum values of 232Th and 238U, estimated from the radioactivity of 208Tl and 234Th in secular equilibrium, were found to be 152,000 and 63,300Bq/kg, respectively. The fraction of the moderately conductive part in electric separation contained thorium predominantly, while that of the non-conductive part was found to be uranium rich. The present arrangement of the pilot plant cascade and the fine tuning of setting parameters were found to be effective and economic separation process of the radioactive minerals from placer sands in Bangladesh. Probable radiological impacts and extraction potentiality of such radioactive materials are also discussed. | |
| 540 | |a International Association for Mathematical Geosciences, 2014 | ||
| 690 | 7 | |a Placer sand |2 nationallicence | |
| 690 | 7 | |a Thorium |2 nationallicence | |
| 690 | 7 | |a Uranium |2 nationallicence | |
| 690 | 7 | |a Gamma-ray measurement |2 nationallicence | |
| 690 | 7 | |a Bangladesh |2 nationallicence | |
| 700 | 1 | |a Sasaki |D Takayuki |u Department of Nuclear Engineering, Kyoto University, Kyoto daigaku-Katsura C3, Nishikyo, 615-8540, Kyoto, Japan |4 aut | |
| 700 | 1 | |a Rajib |D Mohammad |u Nuclear Minerals Unit, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Ganakbari, Savar, PO Box-3787, 1000, Dhaka, Bangladesh |4 aut | |
| 700 | 1 | |a Akiyoshi |D Masafumi |u Department of Nuclear Engineering, Kyoto University, Kyoto daigaku-Katsura C3, Nishikyo, 615-8540, Kyoto, Japan |4 aut | |
| 700 | 1 | |a Kobayashi |D Taishi |u Department of Nuclear Engineering, Kyoto University, Kyoto daigaku-Katsura C3, Nishikyo, 615-8540, Kyoto, Japan |4 aut | |
| 700 | 1 | |a Takagi |D Ikuji |u Department of Nuclear Engineering, Kyoto University, Kyoto daigaku-Katsura C3, Nishikyo, 615-8540, Kyoto, Japan |4 aut | |
| 700 | 1 | |a Fujii |D Toshiyuki |u Research Reactor Institute, Kyoto University, Kumatori-cho, Sennan-gun, 590-0494, Osaka, Japan |4 aut | |
| 700 | 1 | |a Zaman |D Md |u Nuclear Minerals Unit, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Ganakbari, Savar, PO Box-3787, 1000, Dhaka, Bangladesh |4 aut | |
| 773 | 0 | |t Natural Resources Research |d Springer US; http://www.springer-ny.com |g 24/2(2015-06-01), 209-220 |x 1520-7439 |q 24:2<209 |1 2015 |2 24 |o 11053 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s11053-014-9248-6 |q text/html |z Onlinezugriff via DOI |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 900 | 7 | |a Metadata rights reserved |b Springer special CC-BY-NC licence |2 nationallicence | |
| 908 | |D 1 |a research-article |2 jats | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-springer | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1007/s11053-014-9248-6 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Sasaki |D Takayuki |u Department of Nuclear Engineering, Kyoto University, Kyoto daigaku-Katsura C3, Nishikyo, 615-8540, Kyoto, Japan |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Rajib |D Mohammad |u Nuclear Minerals Unit, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Ganakbari, Savar, PO Box-3787, 1000, Dhaka, Bangladesh |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Akiyoshi |D Masafumi |u Department of Nuclear Engineering, Kyoto University, Kyoto daigaku-Katsura C3, Nishikyo, 615-8540, Kyoto, Japan |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Kobayashi |D Taishi |u Department of Nuclear Engineering, Kyoto University, Kyoto daigaku-Katsura C3, Nishikyo, 615-8540, Kyoto, Japan |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Takagi |D Ikuji |u Department of Nuclear Engineering, Kyoto University, Kyoto daigaku-Katsura C3, Nishikyo, 615-8540, Kyoto, Japan |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Fujii |D Toshiyuki |u Research Reactor Institute, Kyoto University, Kumatori-cho, Sennan-gun, 590-0494, Osaka, Japan |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Zaman |D Md |u Nuclear Minerals Unit, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Ganakbari, Savar, PO Box-3787, 1000, Dhaka, Bangladesh |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Natural Resources Research |d Springer US; http://www.springer-ny.com |g 24/2(2015-06-01), 209-220 |x 1520-7439 |q 24:2<209 |1 2015 |2 24 |o 11053 | ||