Comparative measurements of ITER Nb3Sn strands between two laboratories

Autor:	Lu, J., Hill, S., McGuire, D., Dellinger, K., Nijhuis, A., Wessel, W. A. J., Krooshoop, H. J. G., Chan, K., Martovestky, N. N.
Rok vydání:	2016
Předmět:	Physics - Instrumentation and Detectors Condensed Matter - Superconductivity
Druh dokumentu:	Working Paper
DOI:	10.1109/TASC.2017.2685502
Popis:	ITER Nb3Sn strand quality verification tests require large quantities of precise measurements. Therefore regular cross-checking between testing laboratories is critically important. In this paper, we present results from a cross-checking test of 140 samples between the National High Magnetic Field Laboratory, USA and the University of Twente, the Netherlands. The tests comprise measurements at 4.2 K on critical current, RRR and hysteresis loss, while at room temperature the chromium layer thickness, Cu/nonCu ratio, filament twist pitch, and diameter were determined. Our results show very good agreement between the two labs. The reasons for small random discrepancies are discussed. Comment: 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1701.00446 Zobrazit plný text záznamu View this record from Arxiv