Abstract
Korea has developed a Helium Cooled Ceramic Reflector Test Blanket Module (Ko HCCR TBM) related to the ITER project. Tungsten is considered as a prime candidate for the plasma facing materials in fusion reactors, and for the structure material of Ko HCCR TBM. KAERI (Korea Atomic Energy Research Institute) has been evaluating neutron cross sections of tungsten isotopes for neutron energy of up to 150 MeV based on nuclear reaction codes and available measurement data. New experimental data were measured at nELBE of HZDR (Helmholtz-Zentrum Dresden-Rossendorf) for a comparison with the evaluated and existing measurement data. The neutron source nELBE adopts a 40 MeV superconducting electron linac and a liquid Pb target for time-of-flight measurements. The nELBE neutron source uses no moderator and provides fast neutrons. An electron bunch length of 5 ps and a compact target provide a good neutron energy resolution with a relatively short flight length compared to other time-of-flight neutron sources. Transmission data of a natural tungsten sample were measured with a flight path length of 852.1 cm and a repetition rate of 101.56 kHz. The neutron total cross section of natural tungsten was obtained for an energy range of 100 keV to 10 MeV.
Highlights
The International Thermonuclear Experimental Reactor (ITER) has been developed to demonstrate the feasibility of electricity-producing fusion power stations
KAERI (Korea Atomic Energy Research Institute) has been evaluating neutron cross sections of tungsten isotopes for neutron energy of up to 150 MeV based on nuclear reaction codes and available measurement data
Different types of tritium breeding blankets have been developed, and one of them is the Helium Cooled Ceramic Reflector Test Blanket Module developed by Korea (Ko HCCR TBM) [1]
Summary
The International Thermonuclear Experimental Reactor (ITER) has been developed to demonstrate the feasibility of electricity-producing fusion power stations. Reduced Activation Ferritic/Martensitic (RAFM) steel has been developed as the structure material for the first and side walls of Ko HCCR TBM [2]. Tungsten is considered as a prime candidate of plasma facing materials in fusion reactors and an element of RAFM steel of Ko HCCR TBM. The neutron reaction cross sections of tungsten have been updated in the recent versions of the evaluated nuclear data libraries such as ENDF/B-VII.1 [3], JEFF3.2 [4] and JENDL4.0 [5]. The Korea Atomic Energy Research Institute (KAERI) has been evaluating the neutron total, elastic scattering, and inelastic scattering cross sections of tungsten for neutron energy of up to 150 MeV based on nuclear reaction codes and the available measurement data [6]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
