Devices

130 fusion devices, 78 with parameters directly comparable across machines.

These are design parameters, not shot results — a machine's major radius is a property of how it was built, not something it achieved. They are recorded as claimed for built devices and planned for those still under construction, and none of them appear on the achieved benchmark. For measured performance see the benchmark.

Showing all 78 devices

Fusion devices compared by design parameter. Column headers sort.
	Approach	Status	Country	m	m	MA	T	s
ITER ITER Organization	Tokamak	Under construction	FR	6.2	2	15	5.3	3000
Wendelstein 7-X Max Planck Institute for Plasma Physics	Stellarator	Operating	DE	5.5	0.53	—	3	26
Large Helical Device National Institute for Fusion Science	Stellarator	Operating	JP	3.9	0.65	—	4	—
Joint European Torus UK Atomic Energy Authority	Tokamak	Shut down	GB	2.96	1.25	5	3.4	60
JT-60SA National Institutes for Quantum and Radiological Science and Technology	Tokamak	Operating	JP	2.96	1.18	5.5	2.25	100
WEST CEA	Tokamak	Operating	FR	2.5	0.5	1	3.7	1000
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	Fusion	Operating	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	48
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	1066
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	Fusion	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	0.25	0.2	2	0.8
CFQS Southwest Jiaotong University	Stellarator	Planned	CN	1	0.25	—	1	—
TORPEX Swiss Plasma Center	Fusion	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	0.32	0.3	—
FTU ENEA	Tokamak	Operating	IT	0.935	0.3	0.04	8	1.5
NSTX-U Princeton Plasma Physics Laboratory	Tokamak	Operating	US	0.934	0.68	2	1	5
KTM Institute of Atomic Energy of National Nuclear Center of the Republic of Kazakhstan	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	Tokamak	Operating	GB	0.85	0.65	2	0.52	5
ADITYA-U Institute for Plasma Research	Tokamak	Operating	IN	0.75	0.2	0.1	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	Under construction	—	0.65	0.2	0.1	1.52	—
QUEST Kyushu University	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	Fusion	Operating	FR	0.6	0.05	—	—	0.1
EXL-50 ENN Science and Technology Development	Tokamak	Operating	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	—	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	Tokamak	Planned	—	0.5	0.25	0.31	0.5	—
RELAX Kyoto Institute of Technology	Fusion	Operating	JP	0.5	0.25	—	—	—
ST40 Tokamak Energy	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	30	0.5	0.005
ALVAND Iran Atomic Energy Organization	Tokamak	Operating	—	0.456	0.126	0.035	0.8	0.009
IR-T1 Islamic Azad University	Tokamak	Operating	—	0.45	0.125	0.04	0.9	0.03
PEGASUS-III University of Wisconsin-Madison	Tokamak	Operating	US	0.45	0.37	1	0.58	—
VEST Seoul National University	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	Tokamak	Planned	ES	0.4	0.25	2	2	2
DAMAVAND Iran Atomic Energy Organization	Tokamak	Operating	—	0.362	0.077	0.03	0.9	0.02
GLOBUS-M2 Ioffe Institute	Tokamak	Operating	RU	0.36	0.24	0.5	1	—
TST-2 The University of Tokyo	Tokamak	Operating	JP	0.36	0.23	0.2	0.3	0.05
UTST The University of Tokyo	Tokamak	Operating	JP	0.35	0.2	0.1	0.25	0.01
PHIX Tokyo Institute of Technology	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	Tokamak	Operating	BR	0.3	0.2	0.045	0.4	0.012
HIST University of Hyogo	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	Tokamak	Operating	CN	0.3	0.23	0.05	0.15	0.001
SSST Institute for Plasma Research	Tokamak	Under construction	IN	0.28	0.16	0.028	0.15	—
MT-1 Pakistan Atomic Energy Commission	Tokamak	Operating	—	0.25	0.1	0.015	1.2	0.008
NORTH Technical University of Denmark	Tokamak	Operating	—	0.25	—	—	0.3	—
SCR-1 Instituto Tecnologico de Costa Rica	Stellarator	Operating	CR	0.238	0.042	0.04	0.0878	—
GLAST-III Pakistan Atomic Energy Commission	Tokamak	Operating	—	0.2	0.1	0.002	0.0875	0.0012
GUTTA Saint Petersburg State University	Tokamak	Operating	RU	0.16	0.08	0.18	1.5	—
MEDUSA-CR Instituto Tecnologico de Costa Rica	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	Fusion	Operating	US	—	—	—	10	—

52 further devices are recorded without comparable parameters — the survey does not print a technical table for every entry. They are listed on their own pages rather than shown here with empty cells.