US 12,437,882 B2
Central column designs for tokamaks
Tony Langtry, Abingdon (GB); Robert Slade, Abingdon (GB); and Marcel Kruip, Abingdon (GB)
Assigned to Tokamak Energy Ltd, Abingdon (GB)
Appl. No. 16/965,799
Filed by Tokamak Energy Ltd, Abingdon (GB)
PCT Filed Jan. 30, 2019, PCT No. PCT/GB2019/050246
§ 371(c)(1), (2) Date Jul. 29, 2020,
PCT Pub. No. WO2019/150096, PCT Pub. Date Aug. 8, 2019.
Claims priority of application No. 1801545 (GB), filed on Jan. 31, 2018.
Prior Publication US 2021/0043333 A1, Feb. 11, 2021
Int. Cl. G21B 1/05 (2006.01)
CPC G21B 1/057 (2013.01) 5 Claims
OG exemplary drawing
 
1. A central column for a toroidal field coil of a tokamak plasma chamber, the central column comprising:
a support member extending vertically along a central axis of the central column;
current carrying elements of the toroidal field coil located radially outward of the support member;
a coolant channel within the support member;
electrical insulation around each of the current carrying elements; and
cooling ribs in thermal contact with the electrical insulation, and extending radially outward from the support member and through the support member into thermal contact with the coolant channel, the cooling ribs comprising an electrically conductive material,
wherein the support member is in structural contact with the current carrying elements so as to support them radially against compressive Lorentz stress.