Journal ArticleDOI
Activation of high-Tc superconductors due to neutron irradiation
TLDR
In this paper, the activation of high-T c superconductors was analyzed by using the computer code, ORIGEN-II, and the contribution of impurities in Bi 2 Sr 2 CaCu 2 O 8+ x (Bi-2212) to 1 cm dose equivalent occupies about 15%.Abstract:
For actual application of high- T c superconductors (HTSC), the improvement of J c is required. It has been reported that pinning centers in the HTSC increase J c . Particle beam irradiation is one of the most effective methods to introduce strong pinning centers into HTSC for J c enhancement. In particular, neutron irradiation is very effective for bulk materials, although the activation might be an important problem. In this study, activation of HTSCs was analysed by using the computer code, ORIGEN-II. The contribution of impurities in Bi 2 Sr 2 CaCu 2 O 8+ x (Bi-2212) to 1 cm dose equivalent occupies about 15%. In RE-123 family, Y, La, Nd, Sm. Gd, Dy, Ho and Yb gave low activation. In the case of U-doped Y-123, about 75% of the activity is from the contribution of the fission products.read more
Citations
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Application of Neutron Flux from PUSPATI TRIGA Mark II Research Reactor in Enhancing Superconducting Properties of BSCCO Superconductor
TL;DR: In this article, the authors report the utilization of neutron flux from the PUSPATI TRIGA Mark II research reactor in enhancing the TC and JC of bismuth-strontium-calcium-copper oxide (BSCCO) superconductor.
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Evidence for Irradiation Triggered Nonuniform Defect Distribution In Multiharmonic Magnetic Susceptibility of Neutron Irradiated YBa2Cu3O7-x
TL;DR: In this article, a non-monotonic dependence of all harmonics on the neutron fluence was revealed, and it was assumed that this effect results from the development of a space inhomogeneous distribution with alternating defectless and defect rich regions.
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The Influence of Neutron Irradiation on the Critical Temperature and Normal Phase Resistance of YBa2Cu3O7−δ High Temperature Superconductors
TL;DR: In this article, the variation of the normal phase resistance, transition width and critical temperature Tc by the irradiation bulk samples of Y123 with different doses of neutrons at the temperature range of 70
Journal ArticleDOI
Evidence for Irradiation Triggered Nonuniform Defects Distribution in Multiharmonic Magnetic Susceptibility of Neutron Irradiated YBa2Cu3O7− δ
TL;DR: In this article, a non-monotonic dependence of all harmonics on the neutron fluence has been revealed and it was assumed that this effect results from the development of a space inhomogeneous distribution with alternating defectless and defect-rich regions.
Journal ArticleDOI
Effect of Neutron Irradiation on Electrical Properties of Bi2Sr2CaCu2 (Bi-2212) Phase Superconductor
TL;DR: In this paper, the effect of neutron irradiation on superconducting properties of Bi2Sr2CaCu2 (Bi-2212) phase superconductor was studied.
References
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Journal ArticleDOI
The role of uranium, with and without irradiation, in the achievement of Jc ≈ 300000 A cm−2 at 77 K in large grain melt-textured Y123
TL;DR: In this article, the addition of uranium to large single grains of Y123 improves J c prior to irradiation, by over 80%. Observations on the U chemistry and microstructure studies are presented.
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Uranium fission fragment pinning centers in melt-textured YBCO
TL;DR: In this article, the effect of the chemical and irradiation pinning centers is multiplicative and increase J c, depending on applied field and temperature, by factors of 14 to 40.
Journal ArticleDOI
Activation of high-Tc superconductors with neutron irradiation
TL;DR: In this article, the activation of Bi 2 Sr 2 CaCu 2 O 8+ x (Bi-2212) superconductor was evaluated by the activation analysis and calculation using ORIGEN-JR computer code.
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Radiation-induced defects and flux pinning property of Bi2Sr2CaCu2Oy single crystal
TL;DR: In this paper, the effects of high-energy particles such as fast neutrons, 28 MeV electrons and 120 MeV oxygen ions were investigated with a fluence giving 10-4 dpa of Bi2Sr2CaCu2Oy (BSCCO) single crystals.