Conventional Tokamak in United States; FusDIS 2026 snapshot.
SPARC is a fusion facility or design in United States, with listed operator/developer Commonwealth Fusion Systems. In the user-supplied 2026 IAEA FusDIS table snapshot, it is classified as Conventional Tokamak with status Under Construction and private ownership.
Overview
FusDIS categorizes the project as an experimental device. The reported status describes the supplied snapshot, not an independently verified construction milestone or scientific achievement.
Historical technical parameters
Parameters below are drawn from the IAEA 2022 survey and are not asserted to be current in 2026:
- Major radius: 1.85 m
- Minor radius: 0.57 m
- Plasma current: 8.7 MA
- Magnetic field: 12.2 T
Source
IAEA Fusion Device Information System (FusDIS), user-supplied 2026 table snapshot. Any historical technical parameters are attributed to World Survey of Fusion Devices 2022.