Solenoid-Free Startup and Non-Inductive Ramp-Up of a Compact Spherical-Tokamak Breeder

Solenoid-free startup and non-inductive ramp-up of the compact spherical-tokamak breeder, which has no room for a central solenoid. The current is initiated by outboard induction, electron-cyclotron heating, and a helicity or beam seed, then handed off to the non-inductive and bootstrap currents that hold the flat-top. The ramp auxiliary power and profile-control hand-off are flagged as carried risks. Shorter synthesis paper.

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Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2026-08-28
DOI
https://doi.org/10.5281/zenodo.22132147
Primary Topic
Magnetic confinement fusion research
Type
preprint
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preprint

Solenoid-Free Startup and Non-Inductive Ramp-Up of a Compact Spherical-Tokamak Breeder

Priyanca Ford, G L Kulcinski
Zenodo (CERN European Organization for Nuclear Research)
Magnetic confinement fusion research
preprint

Solenoid-Free Startup and Non-Inductive Ramp-Up of a Compact Spherical-Tokamak Breeder

Priyanca Ford, G L Kulcinski
preprint en

Abstract

Solenoid-free startup and non-inductive ramp-up of the compact spherical-tokamak breeder, which has no room for a central solenoid. The current is initiated by outboard induction, electron-cyclotron heating, and a helicity or beam seed, then handed off to the non-inductive and bootstrap currents that hold the flat-top. The ramp auxiliary power and profile-control hand-off are flagged as carried risks. Shorter synthesis paper.

Zenodo (CERN European Organization for Nuclear Research)
Fusion for Energy (ES)
Affordable and clean energy
Magnetic confinement fusion research
DOIOpen Access PDFOpenAlex
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Solenoid-Free Startup and Non-Inductive Ramp-Up of a Compact Spherical-Tokamak Breeder — Priyanca Ford, G L Kulcinski · Zenodo (CERN European Organization for Nuclear Research) (2026) | TGRS Research Map | TGRS