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Defense Intelligence Reference Document Inertial Electrostatic Confinement Fusion

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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.

  • p. 7 …Emphasis is placed on work in these areas at the University of Illinois Urbana-Champaign, although…
  • p. 8 …of how inertial electrostatic confinement (IEC) fusion works. Gas ~ccd I in~ Spherical Vacuum . Chamber !!1…
  • p. 10 …While Hirsh worked with Farnsworth to demonstrate early experimental success with IEC experiments (Reference 1.2…
  • p. 11 …Such work was soon taken up in several other laboratories, including Los Alamos National Laboratory (LANL…
  • p. 12 …electron) injected traps (as does the present author's work). This selection was largely driven by…
  • p. 15 …This work and others on the small gridded systems at that time showed several important problems…
  • p. 17 …Recent work has shown that by properly programming the distribution function of the injected electrons it…
  • p. 18 …Results indicate that although the formalism works well during the early phases of compression, when the…
  • p. 21 …Hirsch Working With Philo Farnsworth I' I'· 0 ,,, 10•u w "',. ~ 40~ CRONS D- -,C •~7…
  • p. 22 …This worked well, but the design was eventually discarded to move to RF guns with much…
  • p. 23 …This work substituted a metallic hybrid getter for the external pumping on the IEC chamber. With…
  • p. 24 …Another important example of the use of a compact IEC neutron source is the work at…
  • p. 25 …2.7) The IEC developed for this work used a magnetron ion generation technique to improve…
  • p. 26 …Still the design worked reasonably well for the initial mine detection experiments. Unfortunately, the project was…
  • p. 27 …as shown by the hybrid magnetron source work in Japan. Another point noted is the advantage…
  • p. 29 …As already noted, the basic physics of this version was originally studied in pioneering work by…
  • p. 30 …Relation to Other Prior Thrusters NASA and other laboratories have worked toward developing advanced Hall Thrusters…
  • p. 31 …Indeed, the thruster concept arose from work on a fusion based IEC (Reference 3.5). To…
  • p. 32 …Khachan's work. It too looks very promising. 25 UNCLASSIFIED/ ,u;oAt OFFIGIPk IP&'i OIIU{
  • p. 35 …at the UIUC and several other laboratories working on IECs. The issue then is how to…
  • p. 39 …In follow-on work, they simplified the modeling of charge exchange with an analytical approach to…
  • p. 40 …Satsangi, "Inertial Electrostatic Confinement Experiments at Low Working Pressure," Prepared under U.S. Army contract DAAK…
  • p. 42 …In Chacon's work, a bounce-averaged Fokker-Planck (BAFP) model was employed to obtain steady…
  • p. 45 …Before discussing this work, some definitions for the potential well structure will be reviewed. POTENTIAL WELL…
  • p. 48 …However, much more work needs to be done along these lines to fully identify the optimal…
  • p. 52 …As pointed out by Khachan his work noted D2+ becomes more significant in lower voltages). In…
  • p. 53 …Nevins, Can inertial electrostatic confinement work beyond the ion-ion collisional time scale?" Phys. Plasmas, Vol…
  • p. 70 …Chacon's work, thermalized ions build up and additional quasi- Maxwellian distriution in the trap). Still…
  • p. 71 …To accomplish this result quickly on a modest budget, we need to simplify the work by…
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In summary, if the physics principles
are demonstrated successfully, the
MCSA fusion power plant will offer
numerous advantages for space
propulsion as well as for terrestrial
power sources. The non-Maxwellian
plasma involved is well suited for
operation with D- 3He fuel that provides
much of the energy output in the form
of very energetic 14-MeV protons.
Proton energy can be employed for
either direct conversion to electricity or
directed thrust. As demonstrated in the
Fusion Ship II design study, the MCSA
power plant is especially well suited for
manned deep space missions where the
hid~..,;,,,
Entennla'
\
Figure 5.10. Diagram of Direction Randomization
(KAM effect) Due to the Magnetic Field Null Region
in the IEC
high power-to-weight of the MCSA enables fast trip times. The concept introduces
several important new physics. The basic concept of the MCSA system is use of
recirculation from escaping particles from one unit into the neighboring one where
retrapping occurs. These physical principles have not yet been demonstrated
experimentally, but formulated initial tests could be done with a modest size
experiment and stepped up in size to eventually demonstrate a full-scale prototype
power unit.
CONCLUDING REMARKS
This section has concentrated on various near-term "spin off" applications of
neutron/proton/x-ray sources and also non-electrical power applications such as space
propulsion. The homeland security inspection station described here show how versatile
the IEC concept is, allowing mufti-device broad area inspection. Space propulsion and
related space power seems quite far term due to the large size powers demanded for
such applications. However, the possibility of using magnetic coupling of smaller unit
provides a modular approach that has many advantages, plus expediting development
by allowing concentration on the smaller modules. In addition, use of near-tern
electrically driven IEC jet plasma devices allows a "product" along the way to the
eventual development of the high power fusion devices.
REFERENCES
5.1 G. H. Miley, L. Wu, H.J. Kim, Nuclear Techniques in National Security Studies on
Contraband Detections IEC-based neutron generator for security inspection system",
Journal of Radioanalytical and Nuclear Chemistry, Vol. 263, No. 1 (2005) pp.159-
164.
5.2 R. Burton, H. Momota, N. Richardson, Y. Shaban, and G. H. Miley, "Fusion Ship
59
II- A Fast Manned Interplanetary Space Vehicle Using Inertial Electrostatic Fusion",
Space Technology and Applications International Forum - STAIF-2003, Albuquerque,
NM, 654, Feb 2-5 (2003) (M.S. EI-Genk, ed.), American Institute of Physics Conf.
Proceedings, pp. 553-562.
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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.