Open AccessGdBCO (123) HTS 2G tapes superconducting characteristics investigation under the pulsed electron beam exposure impact
Author(s) -
I. M. Minaev,
А. В. Троицкий,
A. V. Ponomarev,
I. V. Anischenko,
С. В. Покровский,
I. A. Rudnev,
G. N. Mikhaǐlova
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1347/1/012026
Subject(s) - materials science , superconductivity , tantalum , irradiation , thermal shock , scanning electron microscope , electron beam processing , shock (circulatory) , electron , thermal , composite number , composite material , condensed matter physics , nuclear physics , metallurgy , thermodynamics , physics , medicine
The 2nd generation composite HTS tapes samples based on the GdBCO (123) compound were irradiated in a pulsed electron accelerator (Terek-2 facility, IOF RAS) through a tantalum target to determine the thermal and shock loads effect at the tantalum-HTS boundary on the HTS tapes superconducting characteristics. Scanning Hall magnetometry was used to characterize the HTS samples after the electron irradiation exposure. The thermal modes and shock load in a composite superconductor under the irradiation influence are estimated depending on the magnitude of energy contribution to the target. At a silver surface temperature equal to the melting temperature, the critical current value drops by 87% of the initial value. At lower energy, a weaker critical current decrease was observed. The temperature effects and shock waves roles under the irradiation is discussed.