S78 — Toroidal-field (B0/R_c) lever

S78: Toroidal-field (B0/R_c) lever. Design-space study (forward-looking), part of the Kronos MetroVolt 81-analysis validation record (DOI 10.5281/zenodo.21248916).

Register ID

S78

Campaign

Design-space studies (forward-looking)

Status

Design-space study (forward-looking)

Deposit

DOI 10.5281/zenodo.21248916

S78 tests the high-field magnet system — the REBCO conductor, its structural loads, and its protection — that lets a compact tokamak reach a 24.6 T peak field.

What the register records

A constraint-checked upgrade (NOT a change to the frozen point): R_c 1.40→1.44 m and B0 6.0→6.11 T holds peak conductor field at the demonstrated 24.4 T while improving Troyon and kink margins; the freed β_N headroom can instead buy +6% Pfus (2409→2557 MW) at unchanged H98.

This is a register summary of a deposited analysis. Full input decks, scripts, and output data for every analysis S01–S81 are released openly under CC BY 4.0 at DOI 10.5281/zenodo.21248916.