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The process of converting very light nuclei into heavier nuclei is also accompanied by the conversion of mass into large amounts of energy, a process called fusion. The principal source of energy in the sun is a net fusion reaction in which four hydrogen nuclei fuse and ultimately produce one helium nucleus and two positrons.
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Progress in Mirror-Based Fusion Neutron Source Development.

A V Anikeev1,2, P A Bagryansky3,4, A D Beklemishev5,6

  • 1Budker Institute of Nuclear Physics SB RAS, Lavrentyeva av. 11, Novosibirsk 630090, Russia. a.v.anikeev@inp.nsk.su.

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Summary
This summary is machine-generated.

Researchers are developing a 14 MeV neutron source for fusion materials research using a gas dynamic trap (GDT) magnetic mirror system. Recent experiments achieved record plasma parameters, advancing the feasibility of this fusion neutron source.

Keywords:
fusion neutron sourcemagnetic confinementopen magnetic trapplasma physics

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Area of Science:

  • Nuclear Physics
  • Plasma Physics
  • Fusion Energy

Background:

  • A 14 MeV neutron source is crucial for fusion material studies and other applications.
  • Gas dynamic trap (GDT) technology, a magnetic mirror system, is being explored for plasma confinement.
  • Previous research has focused on developing advanced plasma confinement methods.

Purpose of the Study:

  • To present the project of a 14 MeV neutron source for fusion material studies.
  • To report on experimental progress and numerical simulations of a GDT-based neutron source.
  • To explore potential applications of the developed neutron source.

Main Methods:

  • Utilizing a gas dynamic trap (GDT) magnetic mirror system for plasma confinement.
  • Conducting experiments on a hydrogen (deuterium) prototype GDT facility.
  • Employing electron cyclotron resonance heating (ECRH) to increase electron temperature.

Main Results:

  • Achieved stable confinement of hot-ion plasmas with relative pressure exceeding 0.5.
  • Increased electron temperature to 0.9 keV with moderate ECRH power.
  • Demonstrated record plasma parameters for axisymmetric open mirror traps.

Conclusions:

  • Experimental and simulation progress significantly enhances the GDT-based neutron source project's viability.
  • Achieved plasma parameters are suitable for constructing a neutron source for materials testing.
  • The developed technology holds promise for fusion material test facilities and fusion-fission hybrid systems.