英国物理学会
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作者:Gianluigi Ciovati , Pashupati Dhakal , Ganapati R Myneni
来源:[J].Superconductor Science and Technology(IF 2.758), 2016, Vol.29 (6)IOP
摘要:Superconducting radio-frequency cavities made of ingot niobium with residual resistivity ratio (RRR) greater than 250 have proven to have similar or better performance than fine-grain Nb cavities of the same purity, after standard processing. The high purity requirement cont...
作者:Pashupati Dhakal , Gianluigi Ciovati
来源:[J].Superconductor Science and Technology(IF 2.758), 2018, Vol.31 (1)IOP
摘要:We present the results of rf measurements on a niobium–copper clad superconducting radio-frequency cavity with different cooldown conditions and residual magnetic field in a vertical test Dewar in order to explore the effect of thermal current induced magnetic field and its ...
作者:Pashupati Dhakal , Anatolii A Polyanskii
来源:[J].Superconductor Science and Technology(IF 2.758), 2012, Vol.25 (6), pp.065014 (10pp)IOP
摘要:We present the results from DC magnetization and penetration depth measurements of cylindrical bulk large-grain (LG) and fine-grain (FG) niobium samples used for the fabrication of superconducting radio frequency (SRF) cavities. The surface treatment consisted of electropolishing...

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