Nuclear Technology & Radiation Protection Journal


NT & RP Journal	EVALUATION OF THE RADIATION EFFECT ON BUILDING HIGHWAY SUBGRADE USING ¹³⁷Cs SLIGHTLY POLLUTED SOIL AFTER NUCLEAR POWER PLANT ACCIDENTS
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Vol. XXXVII, No. 4, Pp. 259-339 December 2022 UDC 621.039+614.876:504.06 ISSN 1451-3994 Back to Contents	Pages: 328-333 Authors: Hailong Chen, Feifei Wu, Yunfeng Shi, Jing Kang, and Bing Lian Abstract After the accident at the Fukushima nuclear power plant in Japan, a large amount of radioactive contaminated soil was generated, which brought great challenges for treating and disposing of the soil. The recycling of slightly polluted soil can reduce the amount of contaminated soil. This paper analyzes the main exposed scenes of ¹³⁷Cs polluted soil used in the construction of highway subgrade, soil bag handling and paving. The Monte Carlo algorithm (MCNP) and RESRAD-ONSITE program are used to simulate the two scenes respectively, and the concentration of ¹³⁷Cs is derived in the soil at the effective dose of 1 mSv per year. It is concluded that: the annual effective doses of porter and paver are 0.41 mSv per year and 0.23 mSv per year respectively caused by 1 Bqg^-1 ¹³⁷Cs contaminated soil; the activity of ¹³⁷Cs are 2.44 Bqg^-1 and 4.26 Bqg^-1 respectively in the soil at 1 mSv per year for porter and paver; the calculated results are consistent with those reported by the Japan Atomic Research Agency. Also, they are lower than the activity concentration corresponding to the effective dose control level of 1 mSv per year under low-probability events in IAEA No. RS-G-1.7 slightly. Key words: recycling, ¹³⁷Cs, soil FULL PAPER IN PDF FORMAT (478 KB)
Vinča Institute of Nuclear Sciences :: Designed by milas :: July 2007 Operated by acapanic :: Last updated on April, 2023

Pages: 328-333

Authors: Hailong Chen, Feifei Wu, Yunfeng Shi, Jing Kang, and Bing Lian

Abstract

After the accident at the Fukushima nuclear power plant in Japan, a large amount of radioactive contaminated soil was generated, which brought great challenges for treating and disposing of the soil. The recycling of slightly polluted soil can reduce the amount of contaminated soil. This paper analyzes the main exposed scenes of ¹³⁷Cs polluted soil used in the construction of highway subgrade, soil bag handling and paving. The Monte Carlo algorithm (MCNP) and RESRAD-ONSITE program are used to simulate the two scenes respectively, and the concentration of ¹³⁷Cs is derived in the soil at the effective dose of 1 mSv per year. It is concluded that: the annual effective doses of porter and paver are 0.41 mSv per year and 0.23 mSv per year respectively caused by 1 Bqg^-1 ¹³⁷Cs contaminated soil; the activity of ¹³⁷Cs are 2.44 Bqg^-1 and 4.26 Bqg^-1 respectively in the soil at 1 mSv per year for porter and paver; the calculated results are consistent with those reported by the Japan Atomic Research Agency. Also, they are lower than the activity concentration corresponding to the effective dose control level of 1 mSv per year under low-probability events in IAEA No. RS-G-1.7 slightly.

Key words: recycling, ¹³⁷Cs, soil

FULL PAPER IN PDF FORMAT (478 KB)