Radio frequency response of Ag-sheathed (Bi, Pb)2Sr2Ca2Cu3O10+x superconducting tapes

被引：15
|
作者：
Grasso, G [1 ]
Malagoli, A [1 ]
Scati, N [1 ]
Guasconi, P [1 ]
Roncallo, S [1 ]
Siri, AS [1 ]
机构：
[1] Ist Nazl Fis Mat, Res Unit Genoa, I-16146 Genoa, Italy
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2000年 / 13卷 / 10期
关键词：
D O I：
10.1088/0953-2048/13/10/102
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The response of long (Bi, Pb)(2)Sr2Ca2Cu3O10 conductors fabricated by the oxide-powder-in-tube method to a radio frequency excitation was investigated while employed as the inductive part of large GC resonating circuits. After removal of the outer silver sheath, superconducting devices cooled down to 77 K showed superior properties compared to equivalent non-superconducting circuits: Bi-based resonators, conceived for a working frequency in the range between 5 and 17 MHz, presented an improvement of the quality factor by a factor of 20. This result opens new perspectives for the application of Bi-based superconducting materials in the detection of a weak radio frequency signal, as in magnetic resonance imaging.
引用
收藏
页码：L15 / L18
页数：4
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