Effect of remediation parameters on in-air ambient dose equivalent rates when remediating open sites with radiocesium-contaminated soil
Malins, A.; 操上 広志; 北村 哲浩; 町田 昌彦
Malins, A.; Kurikami, Hiroshi; Kitamura, Akihiro; Machida, Masahiko
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.
使用言語 : English
掲載資料名 : Health Physics
: 111
: 4
ページ数 : p.357 - 366
発行年月 : 2016/10
出版社名 : Health Physics Society
特許データ :
論文URL :
キーワード : 福島第一原子力発電所事故; Fukushima Daiichi Nuclear Power Station Accident
使用施設 :
広報プレスリリース :
受委託・共同研究相手機関 :
登録番号 : AA20150584
抄録集掲載番号 : 45000015
論文投稿番号 : 18351
Accesses  (From Jun. 2, 2014)
- Accesses
分野:Environmental Sciences
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