Significant interest in high-temperature superconductor (HTS) REBa2Cu3O7-δ (REBCO, RE = Y or Rare Earths) materials for space and nuclear applications is increasing in recent years, triggered by the commercial availability of REBCO tapes. In both cases, the investigation of radiation effects on such tapes is mandatory. In this work, commercial REBCO tapes from different suppliers were compared before and after 60Co gamma irradiation at 1.016 kGy absorbed dose, typical for space applications, carried out at the ENEA Calliope irradiation Facility. No significant effects on the Tc and Ic at 77 K self-field and Ic(B) at 4.2 K were observed. Similar null effects were reported for both epitaxial YBCO films on STO and LAO substrates reference samples irradiated to the same dose. This is a promising result for electronic devices and magnets operating in the environment of outer space. Gamma irradiation test at higher fusion-relevant doses will be performed in the next future.
Sensitivity of REBCO Tapes and Thin Film to γ-Irradiation
Pinto V.;Cemmi A.;Di Sarcina I.;Masi A.;Verna A.;Celentano G.
2024-01-01
Abstract
Significant interest in high-temperature superconductor (HTS) REBa2Cu3O7-δ (REBCO, RE = Y or Rare Earths) materials for space and nuclear applications is increasing in recent years, triggered by the commercial availability of REBCO tapes. In both cases, the investigation of radiation effects on such tapes is mandatory. In this work, commercial REBCO tapes from different suppliers were compared before and after 60Co gamma irradiation at 1.016 kGy absorbed dose, typical for space applications, carried out at the ENEA Calliope irradiation Facility. No significant effects on the Tc and Ic at 77 K self-field and Ic(B) at 4.2 K were observed. Similar null effects were reported for both epitaxial YBCO films on STO and LAO substrates reference samples irradiated to the same dose. This is a promising result for electronic devices and magnets operating in the environment of outer space. Gamma irradiation test at higher fusion-relevant doses will be performed in the next future.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
