Výsledky vyhledávání - "Takeshi Iimoto"

Akademický článek

Optimizing calibration factors of plastic scintillation fibers for improved accuracy of in situ radiocesium concentration measurements in bottom sediments of agricultural ponds

Autor: Estiner W. Katengeza, Yukihisa Sanada, Kotaro Ochi, Takeshi Iimoto

Publikováno v: Cogent Engineering, Vol 11, Iss 1 (2024)

AbstractThe uncertainty of in situ radioactivity measurements can be influenced by the depth of sediment sampled by the spectrometer and the vertical distribution of the target radionuclide in the sediments. This study used Particle and Heavy Ion Tra

Externí odkaz: https://doaj.org/article/801e0be0b1ef4e7680cdd6a2d1eae859

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Akademický článek

Seasonal Variations in Radon and Thoron Exhalation Rates from Solid Concrete Interior Walls Observed Using In Situ Measurements

Autor: Akihiro Sakoda, Yuu Ishimori, Md. Mahamudul Hasan, Qianhao Jin, Takeshi Iimoto

Publikováno v: Atmosphere, Vol 15, Iss 6, p 701 (2024)

Building materials, such as brick and concrete, are known indoor radon (222Rn) and thoron (220Rn) sources. Most radon and thoron exhalation studies are based on the laboratory testing of pieces and blocks of such materials. To discuss if laboratory f

Externí odkaz: https://doaj.org/article/560c3e0b10494577bbdbe7e60a4eb8f6

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Akademický článek

210Pb Deposition Distribution in the Northern Hemisphere Based on a Long-Range Atmospheric Transport and Deposition Model Calculation

Autor: Yu Cai, Hiromi Yamazawa, Takeshi Iimoto

Publikováno v: Atmosphere, Vol 14, Iss 9, p 1329 (2023)

This study delves into the long-term atmospheric transport and deposition of 210Pb in the Northern Hemisphere by using the atmospheric transport model HIRAT. The calculation for the four-year (2012–2015) period showed an average deposition flux of

Externí odkaz: https://doaj.org/article/7ae5584ceffe4ee88398cf29067fb1b8

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Akademický článek

Preliminary Population Exposure to Indoor Radon and Thoron in Dhaka City, Bangladesh

Autor: Md. Mahamudul Hasan, Miroslaw Janik, Shikha Pervin, Takeshi Iimoto

Publikováno v: Atmosphere, Vol 14, Iss 7, p 1067 (2023)

Radon, an element of natural radiation, is considered one of the leading causes of lung cancer worldwide. In Bangladesh, radon has been clarified as a foremost source of radiation exposure. Potential natural-radiation-induced elevated cancer risks we

Externí odkaz: https://doaj.org/article/6766ac8f9a8d4ee9b907b7c7c054c410

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