Magnetically confined plasmas articles within Nature

Featured

• Article
  24 April 2024 | Open Access

  A high-density and high-confinement tokamak plasma regime for fusion energy

  A stable tokamak plasma has been demonstrated with a high plasma density and a high energy confinement quality, both of which are simultaneously important for fusion reactors.

  • S. Ding
  • , A. M. Garofalo
  •  & J. M. Hanson

• Article
  21 February 2024 | Open Access

  Avoiding fusion plasma tearing instability with deep reinforcement learning

  Artificial intelligence control is used to avoid the emergence of disruptive tearing instabilities in the magnetically confined fusion plasma in the DIII-D tokamak reactor.

  • Jaemin Seo
  • , SangKyeun Kim
  •  & Egemen Kolemen

• Article | 07 September 2022

  A sustained high-temperature fusion plasma regime facilitated by fast ions

  A magnetic confinement regime established at the Korea Superconducting Tokamak Advanced Research device enables the generation of plasmas over 10⁸ kelvin for 20 seconds with the aid of fast ions without plasma edge instabilities or impurity accumulation.

  • H. Han
  • , S. J. Park
  •  & Y.-S. Na

• Article
  16 February 2022 | Open Access

  Magnetic control of tokamak plasmas through deep reinforcement learning

  A newly designed control architecture uses deep reinforcement learning to learn to command the coils of a tokamak, and successfully stabilizes a wide variety of fusion plasma configurations.

  • Jonas Degrave
  • , Federico Felici
  •  & Martin Riedmiller

• Article
  11 August 2021 | Open Access

  Demonstration of reduced neoclassical energy transport in Wendelstein 7-X

  Previously documented record values of the fusion triple product in the stellarator Wendelstein 7-X are shown to be evidence for reduced neoclassical energy transport in this optimized device.

  • C. D. Beidler
  • , H. M. Smith
  •  & M. Zuin

• Letter | 17 April 2019

  Predicting disruptive instabilities in controlled fusion plasmas through deep learning

  Using data from plasma-based tokamak nuclear reactors in the US and Europe, a machine-learning approach based on deep neural networks is taught to forecast disruptions, even those in machines on which the algorithm was not trained.

  • Julian Kates-Harbeck
  • , Alexey Svyatkovskiy
  •  & William Tang

• Letter | 15 February 2012

  Magnetic reconnection from a multiscale instability cascade

  Laboratory observations show how a macroscopic magnetohydrodynamic plasma instability drives a fine-scale secondary instability that is associated with magnetic reconnection.

  • Auna L. Moser
  •  & Paul M. Bellan

• News | 17 November 2010

  Antimatter held for questioning

  Magnetically trapped atoms could test fundamental physics.

  • Eugenie Samuel Reich

• News | 05 February 2010

  Delays prompt reshuffle at ITER fusion project

  Interim director appointed to Europe's part of programme.

  • Geoff Brumfiel

• Research Highlights | 03 February 2010

  Physics: Plasma pinch

• Letter | 14 January 2010

  A large coronal loop in the Algol system

  The close binary Algol system contains a radio-bright KIV sub-giant star in a very close and rapid orbit with a main sequence B8 star. Evidence points to the existence of an extended, complex coronal magnetosphere originating at the cooler K subgiant, but the detailed morphology of the subgiant's corona and its possible interaction with its companion are unknown. Multi-epoch radio imaging of the Algol system now reveals a large coronal loop suggestive of a persistent asymmetric magnetic field structure aligned between the two stars.

  • W. M. Peterson
  • , R. L. Mutel
  •  & W. M. Goss