Final Report: MATERIALS, STRANDS, AND CABLES FOR SUPERCONDUCTING ACCELERATOR MAGNETS [Grant Number DE-SC0010312]

Sumption, Mike D.¹  Collings, Edward W.² 

[1] The Ohio State Univ., Columbus, OH (United States). Center for Superconducting and Magnetic Materials (CSMM);The Ohio State Univ., Columbus, OH (United States). Center for Superconducting and Magnetic Materials (C

关键词: Nb3Sn;    Bi2212;    YBCO Conductor;    cable;    magnetization;    stability;    magnetization;    loss;   

DOI  :  10.2172/1162191
RP-ID  :  DOE-OSU--0010312
PID  :  OSTI ID: 1162191

美国|英语

来源: SciTech Connect

【 摘 要 】

Our program consisted of the two components: Strand Research and Cable Research, with a focus on Nb3Sn, Bi2212, and YBCO for accelerator magnet applications. We demonstrated a method to refine the grains in Nb3Sn by a factor of two, reaching 45 nm grain sizes, and layer Jcs of 6 kA/mm2 at 12 T. W also measured conductor magnetization for field quality. This has been done both with Nb3Sn conductor, as well as Bi:2212 strand. Work in support of quench studies of YBCO coils was also performed. Cable loss studies in Nb3Sn focused on connecting and comparing persistent magnetization and coupling magnetization for considering their relative impact on HEP machines. In the area of HTS cables, we have investigated both the quench in multistrand YBCO CORC cables, as well as the magnetization of these cables for use in high field magnets. In addition, we examined the magnetic and thermal properties of large (50 T) solenoids.