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タイトルEffect of remediation parameters on in-air ambient dose equivalent rates when remediating open sites with radiocesium-contaminated soil
翻訳タイトルEffect of remediation parameters on in-air ambient dose equivalent rates when remediating open sites with radiocesium-contaminated soil
情報提供機関Health Physics Society
著者Malins, A.
著者操上 広志
著者北村 哲浩
著者町田 昌彦
掲載日2016-10
言語eng
ページ数357p.-366p.
種別report
内容記述Calculations are reported for ambient dose equivalent rates [H*(10)] at1 m height above the ground surface before and after remediating radiocesium-contaminated soil at wide and open sites. The results establish how the change in H*(10) upon remediation depends on the initial depth distribution of radiocesium within the ground, on the size of the remediated area, and on the mass per unit area of remediated soil. The remediation strategies considered were topsoil removal (with and without recovering with a clean soil layer), interchanging a topsoil layer with a subsoil layer, and in situ mixing of the topsoil. The results show the ratio of the radiocesium components of H*(10) post-remediation relative to their initial values (residual dose factors). It is possible to use the residual dose factors to gauge absolute changes in H*(10) upon remediation. The dependency of the residual dose factors on the number of years elapsed after fallout deposition is analyzed when remediation parameters remain fixed and radiocesium undergoes typical downward migration within the soil column.
情報源JOPSS関連URL関連URL
URIhttps://f-archive.jaea.go.jp/dspace/handle/faa/211388