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arXiv:1510.01788physics.plasm-ph

Fusion in a magnetically-shielded-grid inertial electrostatic confinement device

John Hedditch, Richard Bowden-Reid, Joe Khachan

Early discovery. Linked by one identifiable commenter. This paper is outside the main ranking; a mention is not an endorsement.

Abstract

Theory for a gridded inertial electrostatic confinement (IEC) fusion system is presented that shows a net energy gain is possible if the grid is magnetically shielded from ion impact. A simplified grid geometry is studied, consisting of two negatively-biased coaxial current-carrying rings, oriented such that their opposing magnetic fields produce a spindle cusp. Our analysis indicates that better than break-even performance is possible even in a deuterium-deuterium system at bench-top scales. The proposed device has the unusual property that it can avoid both the cusp losses of traditional magnetic fusion systems and the grid losses of traditional IEC configurations.

arXiv comments
14 pages, 18 figures. To appear in Phys. Plasmas 22 (10), October 2015
Journal reference
Phys. Plasmas, 22 (10), 2015
DOI
doi:10.1063/1.4933213
Subjects
physics.plasm-phPlasma Physics

On Hacker News

Linked by 1 identifiable commenter in 3 comments across 3 threads, from Aug 2019 to Oct 2020. Found in 1 HN submission from Nov 2019 to Nov 2019. Open submission discussions.

Comments linking this paper, per year.

Discussed in comments3 threads

  1. Big Ideas for Making Fusion Power a Reality 1 comment

    • There's also "inertial electrostatic confinement" (IEC) that seems promising: > Theory for a gridded inertial electrostatic confinement (IEC) fusion system is presented that shows a net energy gain is possible if the grid is magnetically shielded from ion impact. A simplified…

      carapaceView on HNParent context

  2. Don’t Call Me a Pessimist on Climate Change. I Am a Realist 1 comment

    • So much I want to say here... I'm part of the choir to whom the author is preaching but I find this weak tea. (Although he's not preaching, he's RFC'ing his assumptions.) If we grant that fusion isn't around the corner (and I don't, see "Fusion in a magnetically-shielded-grid…

      carapaceView on HNParent context

  3. The Trouble with Fusion (1983) [pdf] 1 comment

    • "Fusion in a magnetically-shielded-grid inertial electrostatic confinement device" > Theory for a gridded inertial electrostatic confinement (IEC) fusion system is presented that shows a net energy gain is possible if the grid is magnetically shielded from ion impact. A…

      carapaceView on HNParent context

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