Neutron cross sections of the boron isotopes for energies between 10 and 500 keV
References (21)
- et al.
Nuclear Physics
(1963) - et al.
Nuclear Physics
(1961) - et al.
Ann. of Phys.
(1960) - et al.
Phys. Rev.
(1957) - R. O. Lane, A. Elwyn, F. P. Mooring and A. Langsdorf, to be...
- et al.
Phys. Rev.
(1961) - et al.
Bull. Am. Phys. Soc.
(1964) - et al.
Phys. Rev.
(1334) - et al.
Phys. Rev.
(1960)
Cited by (27)
Biomass-derived carbon doping to enhance the current carrying capacity and flux pinning of an isotopic Mg<sup>11</sup>B<inf>2</inf> superconductor
2022, Journal of Magnesium and AlloysCitation Excerpt :Therefore, MgB2 wire with natural boron is not suitable for fusion applications. It is demonstrated that 11B isotope is stable under neutron irradiation and therefore MgB2 superconducting material made with 11B could be beneficial for fusion applications such as in International Thermonuclear Experimental Reactor (ITER) or other fusion reactors [15]. However, replacing natural boron with 11B results in decreased superconducting performance including lowering Tc [16], irreversibility field (Hirr) and Jc [17].
Nano-scale microstructure damage by neutron irradiations in a novel Boron-11 enriched TiB<inf>2</inf> ultra-high temperature ceramic
2019, Acta MaterialiaCitation Excerpt :% residual 10B was present in the enriched powder. This would induce the 10B(n, α)7Li transmutation reaction [27]. Apart from damage by fast neutrons, the recoil helium and lithium atoms from the (n, α) reactions also contribute to the total dose during the burn-out phase of 10B in the beginning of the cycle (BOC).
Sintering process and critical current density of low activation Mg<sup>11</sup>B<inf>2</inf> superconductors from low temperature to high temperature
2016, Physica C: Superconductivity and its ApplicationsCitation Excerpt :Since the natural elementary boron is composed of 20% 10B and 80% 11B, in the irradiation environment, the reaction 10B + n → 7Li + He (gas) will occur, related to the large thermal neutron capture cross section of 10B, depressing the long-term stability of the MgB2 superconducting system in ITER. However, isotope research shows that 11B is much more stable than 10B in neutron irradiation environment [11]. In addition, the relative atomic mass of 11B atom is heavier than 10B atom, the diffusion of 11B atom may be different from the diffusion of 10B atom during the sintering process.
The influence of HIP process on critical parameters of MgB<inf>2</inf>/Fe wires with big boron grains and without barriers
2016, Journal of Alloys and CompoundsCitation Excerpt :Amorphous boron with a large grain size and lower purity is often used in the production of MgB2 wires due to cost related considerations – because it is cost effective. Use of 11B is essential in the fabrication of MgB2 wires which are to be used in the ITER [17] since it is more stable than 10B in neutron irradiation environment [18]. However, 11B reduces Jc particularly in wires without chemical barriers weakening the interest in its use in MgB2 wires.
Superior critical current density obtained in Mg<sup>11</sup>B<inf>2</inf> low activation superconductor by using reactive amorphous <sup>11</sup>B and optimizing sintering temperature
2015, Journal of Alloys and CompoundsCitation Excerpt :However, for the MgB2 wires synthesized from natural elementary boron, 10B will be consumed in the irradiation environment according to the reaction 10B + n → 7Li + He (gas), which will lead to partial destruction of the MgB2 wire, and as a result, there is no guarantee for the long-term stability of the MgB2 superconducting magnet. Isotope research shows that 11B is much more stable than 10B in neutron irradiation environment due to the smaller neutron capture cross section [12]. In order to ensure the operation stability of MgB2 superconductor magnet, and to avoid the reduction of the superconductor volume fraction, the isotope 11B becomes a possible substitute for nature B.
Standard cross-section data
1984, Progress in Nuclear Energy
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Present address: Naval Civil Engineering Laboratory, Port Hueneme, California.