ST40
Spherical Tokamak
Associated Organization:
Project Status
Operating
Publications
Langmuir probe and infrared thermography measurements of wide and narrow heat flux profiles in the ST40 tokamak
arXiv (physics.plasm-ph), 2026
Zonal-flow generation and saturation of electromagnetic ion-scale turbulence in tokamaks
arXiv (physics.plasm-ph), 2026
Ion and electron heating via magnetic reconnection during merging/compression plasma startup in ST40
Nuclear Fusion, 2026
Simulation of Divertor Performance in ST40 Under Dynamic Double-Null Plasmas
IEEE Transactions on Plasma Science, 2026
Overview of ST40 results and future: expanding the physics basis of high-field spherical tokamaks
Nuclear Fusion, 2026
Achievement of ion temperatures in excess of 100 million degrees Kelvin in the compact high-field spherical tokamak ST40
Nuclear Fusion, 2023
On the confinement modeling of a high field spherical tokamak ST40
Plasma Physics and Controlled Fusion, 2019
Years Operated
2017 - Present
ST40 is a high field spherical tokamak with a major radius of 40cm at Tokamak Energy. The device utilizes a 4m tall stainless steel vessel with copper toroidal field coils which produce magnetic fields up to 3T. ST40 uses a novel merging-compression method for plasma start-up.
