To investigate the effect of irradiation-induced defects on the superconducting characteristics of industrially produced superconductor—GdBa₂Cu₃O_7−δ (GdBCO)—coated conductors (CCs), we irradiated the GdBCO CCs with Au ions at 2 or 10MeV and probed them using a slow positron beam. Vacancy clusters were detected in both unirradiated and irradiated GdBCO CCs. However, the effect of ion irradiation on the GdBCO CCs was characterized as a slight reduction in the positron annihilation rate with low-momentum electrons. We also found a correlation between the annihilation rate of low-momentum electrons and the superconducting transition temperature.

为了研究辐照缺陷对工业生产的超导体GdBa ₂ Cu ₃ O _{7− δ} （GdBCO）涂层导体（CCs）的超导特性的影响，我们用2或10MeV的Au离子对GdBCO CC进行了辐照，并进行了探测。他们使用慢速正电子束。在未辐照和辐照的GdBCO CC中均检测到空位簇。但是，离子辐照对GdBCO CC的影响的特征是低动量电子会使正电子an灭率略有降低。我们还发现低动量电子的an灭率与超导转变温度之间存在相关性。