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Published: 2016-12-30
Abstract Views: 106
Views PDF: 35
DOI: https://doi.org/10.53747/jnst.v6i4.172
Issue
Vol. 6 No. 4 (2016)
Section
Articles
How to Cite
Nguyen , H. T., Pham Nhu , V. H., & Nguyen , M. T. (2016). Calculation of neutron and gamma fluences on VVER reactor pressure vessel. Nuclear Science and Technology, 6(4), 18-25. https://doi.org/10.53747/jnst.v6i4.172

Calculation of neutron and gamma fluences on VVER reactor pressure vessel

Nguyen Huu Tiep1, Pham Nhu Viet Ha1, Nguyen Minh Tuan2
1 Institute for Nuclear Science and Technology 179 Hoang Quoc Viet Street, Cau Giay, Ha Noi, Viet Nam
2 Dalat Nuclear Research Institute 01 Nguyen Tu Luc, Da Lat, Lam Dong, Viet Nam

Main Article Content

Abstract

Embrittlement is one of the most important effects affecting reactor pressure vessel (RPV) aging. RPV is irradiated with neutrons and gammas, especially fast neutrons, which mainly lead to embrittlement of RPV during operation lifetime of nuclear reactors. Therefore, the radiation-induced embrittlement of the RPV should be carefully evaluated. In this paper, a preliminary calculation was performed using the MCNP5 code to identify the areas in the RPV of the VVER-1000/V320 reactor where the neutron and gamma fluxes are maximum. Also, the neutron and gamma fluence distributions on the RPV were investigated and evaluated along with their energy spectra. These calculations are the starting point for the evaluation of radiation damage to RPV of VVER reactors.

Article Details

Keywords

VVER, reactor pressure vessel embrittlement, neutron and gamma fluences

References

1. OECD/NEA State-of-the-art Report, "Computing Radiation Dose to Reactor Pressure Vessel and Internals," NEA/NSC/DOC (96)5, 1996.
2. B. Boehmer, J. Konheiser, K. Noack, A. Rogov, G.Borodkin, E. Polke, P. Vladimirov, “Neutron and gamma fluence and radiation damage parameters of ex-corecomponents of Russian and German light water reactors”. Proceedings of the 11th International Symposium on Reactor Dosimetry, 18-23 August 2002 in Brussels, Belgium. World Scientific Publishing Co. ISBN #9789812705563; 286-294, 2003.
3. J. A.Mascitti and M. Madariaga,"Review ArticleMethod for the Calculation of DPA in the Reactor Pressure Vessel of Atucha II," Science and Technology of Nuclear Installations, Volume 2011, Article ID 534689, 2011.
4. G.Borodkin, B.Boehmer, K.Noack, and N.Khrennikov. "Balakovo-3 VVER-1000 EX-vessel neutron dosimetry benchmark experiment," ForschungszentrumRossendorfe.V, Moscow - Dresden, November 2002.
5. X-5 Monte Carlo Team, MCNP5 - A General Monte Carlo N-Particle Transport Code - Volume I, II, III, Version 5,Los Alamos National Laboratory, 2003.
6. S.L. Campbell, J.P. Chancelier, and R. Nikoukhah, Modeling and Simulation inScilab/Scicos, Springer, 2000.