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- Title
Critical current density of (Bi<sub>1.6</sub>Pb<sub>0.4</sub>)Sr<sub>2</sub>Ca<sub>2</sub>Cu<sub>3</sub>O<sub>10</sub> superconductor irradiated with neutron in in-core facilities: rotary rack and dry tube at PUSPATI TRIGA Research Reactor.
- Authors
Mujaini, Madihah; Ilhamsyah, A. B. P.; Muhammad-Najib, K.; Hamid, Nasri A.; Awang, Rozidawati; Idris, Faridah Mohamad; Bayar, Abi Muttaqin Jalal; Hamzah, Na'im Syauqi; Abd-Shukor, R.
- Abstract
The effects of neutron irradiation in dry tube (DT) and rotary rack (RR) facilities at PUSPATI TRIGA Reactor on the superconducting properties of (Bi1.6Pb0.4)Sr2Ca2Cu3O10 (Bi-2223) are reported. The samples were prepared via the co-precipitation method and exposed to neutron irradiation in both facilities for 0.25 h to 5 h with neutron flux 6.90 × 1012 and 2.75 × 1012 n cm−2 s−1, respectively. The structure, microstructure, radionuclide, electrical resistance, and AC susceptibility were determined. Energy-dispersive X-ray analysis revealed the presence of Zn and Po due to the neutron activation. Gamma spectroscopy analysis showed that neutron irradiation produced 85Sr radionuclide. The electrical resistance showed onset temperature, Tc-onset of 118 K and transport critical current density, Jc-t of 2.14 A cm−2 at 50 K for the non-irradiated sample. AC susceptibility showed that the transition temperature, Tcχ′ was around 106 to 109 K and 105 to 109 K for samples irradiated in DT and RR facilities, respectively. The lower peak temperature, TpL of the imaginary part of the susceptibility, χ″ varied from 88 to 97 K. Sample irradiated for 4 h with neutron fluence of 3.96 × 1016 n cm−2 in RR facility showed the highest Jc-t (15.88 A cm−2 at 50 K). Samples irradiated in RR showed higher Jc-t compared with samples irradiated in DT facility. Neutron irradiation suppressed the transition temperature and Bi-2223 phase, but improved Jc-t by more than six times in DT and seven times in RR facility. The optimal neutron fluence for neutron irradiation in Bi-2223 was between 2.48 × 1016 and 3.96 × 1016 n cm−2.
- Subjects
NEUTRON irradiation; RESEARCH reactors; CRITICAL currents; NEUTRONS; SUPERCONDUCTORS; NEUTRON flux; GAMMA ray spectrometry
- Publication
Applied Physics A: Materials Science & Processing, 2023, Vol 129, Issue 4, p1
- ISSN
0947-8396
- Publication type
Article
- DOI
10.1007/s00339-023-06598-x