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FusionBenchmark

Design parameters

Devices

Fusion devices compared by size, magnetic field, current and pulse length. These are design values, what each machine was built to do, not what it has measured. Measured results are on the benchmark.

Showing all 78 devices

Fusion devices compared by design parameter. Column headers sort. The bar under R₀ is that device’s major radius relative to the largest machine in the table.
Approach Status Country
ITER ITER Organization Tokamak Under construction FR 6.2 2 15 5.3 3,000
Wendelstein 7-X Max Planck Institute for Plasma Physics Stellarator Operating DE 5.5 0.53 — 3 —
Large Helical Device National Institute for Fusion Science Stellarator Shut down JP 3.9 0.65 — 4 —
Joint European Torus UK Atomic Energy Authority Tokamak Decommissioned GB 2.96 1.25 5 3.4 60
JT-60SA National Institutes for Quantum Science and Technology Tokamak Commissioning JP 2.96 1.18 5.5 2.25 100
WEST CEA Tokamak Operating FR 2.5 0.5 1 3.7 1,000
T-15MD National Research Centre Kurchatov Institute Tokamak Operating RU 2.43 0.42 1 3.5 30
DTT ENEA Tokamak Under construction IT 2.19 0.7 5.5 6 100
RFX Consorzio RFX Reversed-field pinch Under construction IT 2 0.45 2 — —
SPARC Commonwealth Fusion Systems Tokamak Under construction US 1.85 0.57 8.7 12.2 —
KSTAR Korea Institute of Fusion Energy Tokamak Operating KR 1.8 0.5 2 3.5 300
HL-2M Southwestern Institute of Physics Tokamak Operating CN 1.78 0.65 3 3 10
DIII-D General Atomics Tokamak Operating US 1.7 0.6 2 2.17 10
Experimental Advanced Superconducting Tokamak Institute of Plasma Physics, Chinese Academy of Sciences Tokamak Operating CN 1.7 0.4 1 3.5 1,000
URAGAN-2M Institute of Plasma Physics National Science Center Stellarator Operating UA 1.7 0.22 — 2.4 —
ASDEX UPGRADE Max Planck Institute for Plasma Physics Tokamak Operating DE 1.65 0.5 1.4 3.2 10
HL-2A Southwestern Institute of Physics Tokamak Operating CN 1.65 0.4 0.48 2.8 5
TJ-II CIEMAT Stellarator Operating ES 1.5 0.22 — 0.95 —
KTX University of Science and Technology of China Reversed-field pinch Operating CN 1.4 0.4 1 — —
HELIOTRON J Kyoto University Stellarator Operating JP 1.2 0.17 — 1.5 —
HSX University of Wisconsin-Madison Stellarator Operating US 1.2 0.15 — 1.25 —
SST-1 Institute for Plasma Research Tokamak Operating IN 1.1 0.2 0.1 1.5 0.65
J-TEXT Huazhong University of Science and Technology Tokamak Operating CN 1.05 0.29 0.2 2 0.8
CFQS Southwest Jiaotong University Stellarator Under construction CN 1 0.25 — 1 —
TORPEX Swiss Plasma Center MCF Operating CH 1 0.2 0.001 — —
URAGAN-3M Institute of Plasma Physics National Science Center Stellarator Operating UA 1 0.12 — 0.7 —
HBT-EP Columbia University Tokamak Operating US 0.94 0.2 0.03 0.3 —
FTU ENEA Tokamak Shut down IT 0.935 0.3 1.4 8 1.5
NSTX-U Princeton Plasma Physics Laboratory Spherical tokamak Under construction US 0.934 0.68 2 1 5
KTM Institute of Atomic Energy of National Nuclear Center of the Republic of Kazakhstan Spherical tokamak Operating KZ 0.9 0.45 0.75 1 5
COMPASS-U Institute of Plasma Physics Tokamak Under construction CZ 0.894 0.27 2 5 11
TCV Swiss Plasma Center Tokamak Operating CH 0.89 0.25 1.2 1.54 —
MAST-U UK Atomic Energy Authority Spherical tokamak Operating GB 0.85 0.65 2 0.52 5
ADITYA-U Institute for Plasma Research Tokamak Operating IN 0.75 0.25 0.25 1.5 0.4
CTH Auburn University Stellarator Operating US 0.75 0.29 0.08 0.7 —
HIDRA University of Illinois Stellarator Operating US 0.72 0.19 — 0.5 —
PLATO Kyushu University Tokamak Planned JP 0.7 0.25 0.075 0.3 0.2
T-11M Troitsk Institute for Innovation and Fusion Research Tokamak Operating RU 0.7 0.2 0.1 1 0.25
TT-1 Thailand Institute of Nuclear Technology Tokamak Operating TH 0.65 0.2 0.1 1.52 —
QUEST Kyushu University Spherical tokamak Operating JP 0.64 0.4 0.3 0.25 —
TCABR University of São Paulo Tokamak Operating BR 0.61 0.18 0.1 1.07 0.1
TJ-K University of Stuttgart Stellarator Operating DE 0.6 0.1 — 0.07 —
TORIX École Polytechnique MCF Operating FR 0.6 0.05 — — 0.1
EXL-50 ENN Science and Technology Development Spherical tokamak Shut down CN 0.58 0.41 0.5 0.45 5
FT-2 Ioffe Institute Tokamak Operating RU 0.55 0.087 0.04 2.3 —
LIBTOR Tajoura Nuclear Research Centre Tokamak Operating LY 0.53 0.115 0.12 4 —
TUMAN-3M Ioffe Institute Tokamak Operating RU 0.53 0.22 0.18 1.2 0.08
PST Pakistan Atomic Energy Commission Spherical tokamak Planned PK 0.5 0.25 0.31 0.5 —
RELAX Kyoto Institute of Technology Reversed-field pinch Operating JP 0.5 0.25 — — —
ST40 Tokamak Energy Spherical tokamak Operating GB 0.5 0.3 2 3 1
ISTTOK Instituto Superior Técnico Tokamak Operating PT 0.46 0.085 0.007 0.8 —
STOR-M University of Saskatchewan Tokamak Operating CA 0.46 0.125 0.06 1 0.005
ALVAND Atomic Energy Organization of Iran Tokamak Operating IR 0.456 0.126 0.035 0.8 0.009
IR-T1 Islamic Azad University Tokamak Operating IR 0.45 0.125 0.04 0.9 0.03
PEGASUS-III University of Wisconsin-Madison Spherical tokamak Operating US 0.45 0.37 1 0.58 —
VEST Seoul National University Spherical tokamak Operating KR 0.45 0.33 0.1 0.1 —
GOLEM Czech Technical University Tokamak Operating CZ 0.4 0.085 0.008 0.8 0.025
HYBTOK-II Nagoya University Tokamak Operating JP 0.4 0.128 0.015 0.5 0.01
SMART University of Seville Spherical tokamak Operating ES 0.4 0.25 0.5 1 0.5
DAMAVAND Atomic Energy Organization of Iran Tokamak Operating IR 0.362 0.077 0.03 0.9 0.02
GLOBUS-M2 Ioffe Institute Spherical tokamak Operating RU 0.36 0.24 0.5 1 —
TST-2 The University of Tokyo Spherical tokamak Operating JP 0.36 0.23 0.2 0.3 0.05
UTST The University of Tokyo Spherical tokamak Operating JP 0.35 0.2 0.1 0.25 0.01
PHIX Institute of Science Tokyo Tokamak Operating JP 0.33 0.09 0.005 0.3 0.02
EGYPTOR Egyptian Atomic Energy Authority Tokamak Operating EG 0.3 0.1 0.05 1.2 0.045
ETE National Institute for Space Research Spherical tokamak Operating BR 0.3 0.2 0.045 0.4 0.012
HIST University of Hyogo Spherical tokamak Operating JP 0.3 0.24 0.1 0.2 —
NOVA-FURG Federal University of Espírito Santo Tokamak Operating BR 0.3 0.06 0.01 1 0.015
SUNIST-1 Tsinghua University Spherical tokamak Operating CN 0.3 0.23 0.05 0.15 0.001
SSST Institute for Plasma Research Spherical tokamak Under construction IN 0.28 0.16 0.028 0.15 —
MT-1 Pakistan Atomic Energy Commission Spherical tokamak Operating PK 0.25 0.1 0.015 1.2 0.008
NORTH Technical University of Denmark Spherical tokamak Operating DK 0.25 — — 0.3 —
SCR-1 Instituto Tecnológico de Costa Rica Stellarator Operating CR 0.238 0.042 0.04 0.0878 —
GLAST-III Pakistan Atomic Energy Commission Spherical tokamak Operating PK 0.2 0.1 0.002 0.0875 0.0012
GUTTA Saint Petersburg State University Spherical tokamak Operating RU 0.16 0.08 0.18 1.5 —
MEDUSA-CR Instituto Tecnológico de Costa Rica Spherical tokamak Operating CR 0.14 0.1 0.04 0.5 0.003
TOKASTAR-2 Nagoya University Tokamak Operating JP 0.1 0.04 0.025 0.1 —
TRENTA Helion Energy FRC Shut down US — — — 10 —

229 further devices have their own pages and no row here. 161 are fission reactors: these columns are fusion-device parameters and do not apply to them. 68 are fusion devices with none of these parameters recorded.