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Latest News
NRC updating GEIS rule for new nuclear technology
The Nuclear Regulatory Agency is issuing a proposed generic environmental impact statement (GEIS) for use in reviewing applications for new nuclear reactors.
In an April 17 memo, NRC secretary Carrie Safford wrote that the commission approved NRC staff’s recommendation to publish in the Federal Register a proposed rule amending 10 CFR Part 51, “Environmental Protection Regulations for Domestic Licensing and Related Regulatory Functions.”
Chikara Konno, Fujio Maekawa, Masayuki Wada, Kazuaki Kosako
Fusion Science and Technology | Volume 34 | Number 3 | November 1998 | Pages 1013-1017
Neutronics Experiments and Analysis (Poster Session) | doi.org/10.13182/FST98-A11963746
Articles are hosted by Taylor and Francis Online.
An analysis of benchmark experiment on iron for D-T neutrons with JENDL Fusion File and FENDL/E-1.1 suggested that neutron flux above 10 MeV in iron, was underestimated monotonously with depth. Reasons of this underestimation were investigated through various analyses by DORT3.1 with JENDL Fusion Füe, FENDL/E-1.1 and FENDL/E-2.0. The followings for evaluated cross section data on iron around 15 MeV were considered to be possible origins of underestimation of neutron flux above 10 MeV.
1. JENDL Fusion File: Elastic scattering cross sections for forward angles were smaller. Angle-integrated cross section data of (n,2n) and (n,np) reactions were larger.
2. FENDL/E-1.1: Elastic scattering cross sections for forward angles were smaller.
3. FENDL/E-2.0: Angle-integrated cross section data of inelastic scattering and (n,np) reaction were larger.