1. 1) J.W. Ekin: “Strain scaling law for flux pinning in practical superconductors. Part1: Basic relationship and application to Nb3Sn conductors,” Cryogenics 20 (1980) 611-624
2. 2) M. Sugimoto, et al.: ”Recent activity in development of bronzeprocessed Nb3Sn wires –improvements in strand performance and cabling–”, TEION KOGAKU 47 (2012) 479-485 (in Japanese)
3. 3) A. Asner, et al.: “Development and successful testing of the first Nb3Sn wound in-situ-reacted, high-field superconducting quadrupole of CERN,” IEEE Trans. Magn. 19 (1983) 1410-1416
4. 4) S. Awaji, et al.: “Strain and superconducting properties for R&W reinforcing and stabilizing Nb3Sn coil under high electromagnetic force,” TEION KOGAKU 33 (1998) 390-396 (in Japanese)
5. 5) Y. Kubo, et al.: “Development of Nb3Sn coils with PVF insulated wire through the react and wind technique,” TEION KOGAKU 37 (2002) 61-67 (in Japanese)