HTS Cable Conductor for Compact Fusion Tokamak Solenoids

Zhai, Yuhu; Brown, Tom; Menard, Jon E.; Van der Laan, Danko C.; Weiss, Jeremy D.; Johnson, Zachary

doi:10.1109/tasc.2022.3167343

Title: HTS Cable Conductor for Compact Fusion Tokamak Solenoids

Journal Article · Wed Apr 13 00:00:00 EDT 2022 · IEEE Transactions on Applied Superconductivity

DOI:https://doi.org/10.1109/tasc.2022.3167343· OSTI ID:1873484

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^[2];

^[2]; Johnson, Zachary ^[2]

Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Univ. of Colorado, Boulder, CO (United States)

Significant progress has been made recently in the US fusion community to develop a strategic plan to enable engineering design and construction of a fusion pilot plant (FPP). Princeton Plasma Physics Laboratory (PPPL) is working on developing high current density HTS conductors for next fusion experiments. Partnering with the US industry, we are evaluating feasibility and affordability of Conductor on Round Core (CORC^®) developed by Advanced Conductor Technologies (ACT) for the next compact fusion tokamak facility. High current density achieved by a CORC^® cable based on a four-layer model coil recently tested at National High Magnetic Field Laboratory (NHMFL) motivated its consideration for low cost, reduced size fusion magnet application. This is of interest to PPPL because of its scalability to tokamak central solenoid (CS) coils in terms of required flux swings for plasma startup operations. Furthermore, partnering with ACT, we designed and built a two-layer model coil solenoid directly wound with CORC to demonstrate its applicability for compact solenoids such as that used in the national spherical torus experiment (NSTX), NSTX-upgrade (NSTX-U) and the US sustained high-power density test facility (SHPD). The ~160 mm diameter solenoid wound by a two-layer CORC is being tested in early 2022 under electromagnetic cyclic loading at NHMFL in a unique 160 mm bore, 14 T background field magnet facility.

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Research Organization:: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC02-09CH11466; SC0014009; SC0018125

OSTI ID:: 1873484

Journal Information:: IEEE Transactions on Applied Superconductivity, Vol. 32, Issue 6; ISSN 1051-8223

Publisher:: IEEECopyright Statement

Country of Publication:: United States

Language:: English

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