Final Scientific/Technical Report GRANT NO. DE-FG02-06ER41450

Peter J. Lee ; David C. Larbalestier

关键词: Nb;    grain boundaries;    cavity;    superconductor;    transmission electron microscopy;    magneto optical;    surface topography;    flux penetration;    transport current;    microstructure;    SRF;   

DOI  :  10.2172/958733
RP-ID  :  DOE/ER/41450-1 Final Report
PID  :  OSTI ID: 958733

美国|英语

来源: SciTech Connect

【 摘 要 】

Remarkable progress towards understanding of the behavior of Nb grain boundaries in high purity cavity sheet has been accomplished. An excellent graduate student has been trained in superconductor characterization and he has developed new techniques for the preparation of high quality electron transparent samples for transmission electron microscopy so that electrical and magneto optical measurements can be made on the same local areas. Nb grain boundaries have been characterized for surface topography, superconducting flux penetration, transport current measurement and microstructure. An excellent framework for continued studies in this area has been established. The work has been well received in the SRF community and has been presented at international workshops.