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Defense Intelligence Reference Document Inertial Electrostatic Confinement Fusion
Defense Intelligence Agency · 72 pages · text from the file's own layer
This Defense Intelligence Agency reference document, dated 10 March 2010, covers inertial electrostatic confinement (IEC) fusion. It was produced in FY 2009 under the DIA's Advanced Aerospace Weapon System Applications (AAWSA) program. The report focuses on work at the University of Illinois Urbana-Champaign and reviews IEC basics, experiments, theory and applications such as neutron sources, explosives detection and space propulsion. It concludes by proposing a breakeven experiment for p-11B fusion that uses a hydrogen plasma simulation.
“formation”17 pages
- p. 5 …Photo of Center Spot Formation ......................................................... 12
Figure 2.1. The "Historic" Early IEC Ion Injection Experiment…
- p. 9 …The ideal,
however, is the elimination of the grid altogether which can be done via formation…
- p. 12 …This result was quite negative for electron formation of potential wells, but left the
route possibly…
- p. 14 …most critical factors which inhibit deep well formation are inadequate spherical focusing
and charge neutralization. The…
- p. 18 …The ion formation is done in the high pressure gun
discharge region outside of the chamber…
- p. 19 …Photo of Center Spot Formation. The
main beam observed is a direct path along the injector…
- p. 20 …Klevans, "Theory of Potential-Well Formation in an
Electrostatic Confinement Device", J. of Appl. Phys., Vol…
- p. 22 …As shown in
the paper, he found structure for both consistent with well formation. One possible…
- p. 30 …However, to date,
formation of the jet has only been studied under steady-state operation.
23…
- p. 31 …The result is the
formation of the intense space charge neutralized ion beam (or "plasma jet…
- p. 32 …This type of
ion formation in the IEC has been studied extensively by workers at Nambe…
- p. 35 …The approach being
pursued at UIUC is the formation of deep potential wells with angular ion…
- p. 45 …considered well formation with emphasis on angular momentum effects (Reference
4.4). Earlier studies had assumed…
- p. 48 …is very encouraging for formation of deep wells
in IEC devices designed for reactors using beam…
- p. 49 …Krylov algorithm that does not require actual formation
and storage of the Jacobian matrix to minimize…
- p. 69 …While very demanding, plasma
simulations show that carefully controlled injection can provide the potential well
formation…
- p. 70 …This eliminates the need for a
grid by formation of a deep potential
well (ion trap…
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Figure 5.7. Illustration of a Three-Unit MCSA Device
Next we consider in more detail the new physics concepts, recirculation and retrapping,
that provide the basis for magnet channel coupling.
Recirculation of Radial Belt Cone Losses
The field configuration and a hypothetical particle trajectory through a belt cusp are
shown in Figure 5.8. Because the magnetic field lines that exit the cusp-like field
reconnect to the confinement region within the coils, plasma particles that exit through
the belt cusp loss cone will recirculate back into the confinement region. This
recirculation significantly increases the confinement time verses that of a simple cusp
devise, leading to a favorable concept. The linear scaling of an MCSA fusion device with
plasma radius, as well as successful operations of multiple units in the array, is in large
part controlled by this recirculation effect.
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Figure 5.8. Diagram of Belt-Cusp Fields and Particle Recirculation
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Report, from the dia collection. The PDF is mirrored here; the original link is under it. 72 pages are in the text index: search them above, or from the library's search.