Abstract
Whereas Nb/sub 3/Sn wires are commercially available and produced in long lengths for the fabrication of large high field magnets, Nb/sub 3/Al is emerging as a candidate material for even higher fields, particularly for nuclear fusion devices. We are therefore investigating the basic superconducting parameters of both materials, such as the transition temperature, the critical current densities and the upper critical fields, as a function of gamma dose and fast neutron fluence. Whereas the transition temperature of these multifilamentary wires is found to decrease slightly, both J/sub C/ and the upper critical fields (as determined from Kramer plots) increase with neutron fluence, in agreement with previous work on A15 systems. The enhancement of the critical currents amounts to approximately 15%. Further irradiation work to higher fluences is under way, in order to investigate the limits of these materials for applications in a radiation environment.
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.
