Changes in superconducting properties by room temperature neutron irradiation for binary and alloyed Nb<inf>3</inf>Sn multifilamentary wires

Radiation Damage to Bscco-2223 From 50 Mev Protons

“…Reactor irradiation at fluence of 4 x 10 17 n/cm 2 showed an enhanced I c [3]. A similar effect in Nb 3 Sn has been observed [8]. This enhanced I c is not observed in NbTi.…”

Radiation Limits for Nb{sub 3}Sn Superconductors for ITER Magnets: A literature review

“…(Unfortunately, the quality of the graphics is --below that which is customary for the journal in which these results were published.) In agreement with the results of Weiss et al [1987] Except for the in situ irradiated, binary TWC-247 conductor with poor initial J =$ the differences between low and ambient-temperature irradiations are within the uncertainties the authors expected from sample to sample.…”

“…The JC data for these specimens were shown above, in Figures 3.4.7 and 3,4.8. In general, the results given in Table 4.3.1 are in accord with those of Weiss et al [1987] shown in Figures 3.3.3 and 3.3.4. The ternary specimen with the higher Ti content (TWC-325) exhibited a somewhat less pronounced peak in BC2 with fluence.…”

“…Comparative neutron irradiations at 14 Mev of alloyed and binary Nb3Sn were discussed above [Weiss et al, 1987]. Earlier results by ScanIon and Raymond…”

“…Additions of Ti to the binary system are of interest because of the increase produced in BC2 (31.3.4). The specimens contained about 10 000 filaments of small size ( -1.3 pm x 5 pm) and the bronze-to-Nb ratio was 3:1. alloyed Nb3Sn compared to binary Nb3Sn [Weiss et al, 1987]. Further comparative investigations of commercial binary and ternary Nb3Sn conductors are discussed below, in 33.4 on high energy neutron irradiation.…”