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SPARC is a tokamak that has been proposed for construction by Commonwealth Fusion Systems (CFS) in collaboration with the Massachusetts Institute of Technology (MIT) Plasma Science and Fusion Center (PSFC), with funding from Eni,[1] Breakthrough Energy Ventures, Khosla Ventures, Temasek, Equinor, Devonshire Investors, and others.[2][3][4]

SPARC plans to prove out the technology and physics required to build a power plant based on the ARC fusion power plant concept.[5] SPARC proposes to use powerful magnets built with new yttrium barium copper oxide (YBCO) high temperature superconductor in order to produce plasmas that generate twice as much energy as is required to sustain the plasma at high temperatures (200 million Kelvin),[6] giving a fusion gain Q > 2.[5] SPARC is designed to meet this mission with margin and may be capable of achieving up to 140 MW of fusion power for 10 second bursts despite being a relatively compact device.[1][5]

As of September 2020, the researchers behind SPARC stated that they expected construction of the tokamak to begin in 2021 and take four years to complete.[7][8]
References

"MIT and newly formed company launch novel approach to fusion power". MIT News. Retrieved 2018-06-15.
Rathi, Akshat. "In search of clean energy, investments in nuclear-fusion startups are heating up". Quartz. Retrieved 2020-09-29.
Systems, Commonwealth Fusion. "Commonwealth Fusion Systems Raises $115 Million and Closes Series A Round to Commercialize Fusion Energy". www.prnewswire.com. Retrieved 2020-09-29.
Systems, Commonwealth Fusion. "Commonwealth Fusion Systems Raises $84 Million in A2 Round". www.prnewswire.com. Retrieved 2020-10-05.
Creely, A. J.; Greenwald, M. J.; Ballinger, S. B.; Brunner, D.; Canik, J.; Doody, J.; Fülöp, T.; Garnier, D. T.; Granetz, R.; Gray, T. K.; Holland, C. (2020). "Overview of the SPARC tokamak". Journal of Plasma Physics. 86 (5). doi:10.1017/S0022377820001257. ISSN 0022-3778.
"MIT Validates Science Behind New Nuclear Fusion Reactor Design". www.greentechmedia.com. Archived from the original on 22 October 2020.
"Validating the physics behind the new MIT-designed fusion experiment". MIT News | Massachusetts Institute of Technology. Retrieved 2020-09-30.
Fountain, Henry (2020-09-29). "Compact Nuclear Fusion Reactor Is 'Very Likely to Work,' Studies Suggest". The New York Times. ISSN 0362-4331. Retrieved 2020-09-29.

vte

Fusion power, processes and devices
Core topics

Nuclear fusion
Timeline List of experiments Nuclear power Nuclear reactor Atomic nucleus Fusion energy gain factor Lawson criterion Magnetohydrodynamics Neutron Plasma

Processes,
methods
Confinement
type
Gravitational

Alpha process Triple-alpha process CNO cycle Fusor Helium flash Nova
remnants Proton-proton chain Carbon-burning Lithium burning Neon-burning Oxygen-burning Silicon-burning R-process S-process

Magnetic

Dense plasma focus Field-reversed configuration Levitated dipole Magnetic mirror
Bumpy torus Reversed field pinch Spheromak Stellarator Tokamak
Spherical Z-pinch

Inertial

Bubble (acoustic) Laser-driven Magnetized Liner Inertial Fusion

Electrostatic

Fusor Polywell

Other forms

Colliding beam Magnetized target Migma Muon-catalyzed Pyroelectric

Devices, experiments
Magnetic confinement
Tokamak

International

ITER DEMO PROTO

Americas

Canada STOR-M United States Alcator C-Mod ARC
SPARC DIII-D Electric Tokamak LTX NSTX
PLT TFTR Pegasus Brazil ETE Mexico Novillo [es]

Asia,
Oceania

China CFETR EAST
HT-7 SUNIST India ADITYA SST-1 Japan JT-60 QUEST [ja] Pakistan GLAST South Korea KSTAR

Europe

European Union JET Czech Republic COMPASS GOLEM [cs] France TFR WEST Germany ASDEX Upgrade TEXTOR Italy FTU IGNITOR Portugal ISTTOK Russia T-15 Switzerland TCV United Kingdom MAST-U START STEP

Stellarator
Americas

United States CNT CTH HIDRA HSX Model C NCSX Costa Rica SCR-1

Asia,
Oceania

Australia H-1NF Japan Heliotron J LHD

Europe

Germany WEGA Wendelstein 7-AS Wendelstein 7-X Spain TJ-II Ukraine Uragan-2M
Uragan-3M [uk]

RFP

Italy RFX United States MST

Magnetized target

Canada SPECTOR United States LINUS FRX-L – FRCHX Fusion Engine

Other

Russia GDT United States Astron LDX Lockheed Martin CFR MFTF
TMX Perhapsatron PFRC Riggatron SSPX United Kingdom Sceptre Trisops ZETA

Inertial confinement
Laser
Americas

United States Argus Cyclops Janus LIFE Long path NIF Nike Nova OMEGA Shiva

Asia

Japan GEKKO XII

Europe

European Union HiPER Czech Republic Asterix IV (PALS) France LMJ LULI2000 Russia ISKRA United Kingdom Vulcan

Non-laser

United States PACER Z machine

Applications

Thermonuclear weapon
Pure fusion weapon

International Fusion Materials Irradiation Facility ITER Neutral Beam Test Facility

Physics Encyclopedia

World

Index

Hellenica World - Scientific Library

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