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.

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“Works”29 pages

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…

UNCLASSIFIED//F811. 8FFll!l*L 1!1!11! 8HL"i'
D-D IEC for 1 rsA
D-T IFC
for PFNAiFNA Detector Array
/
/
'
(-~)/ /
Lu•gg..,ge ' 'IEC for x-ray \r
' -,.._____....--
~ I
\ Top View
I
I
Figure 5.2. Schematic (view from top} of a broad coverage IEC inspection System for luggage
inspection
This unit employs two broad area neutron sources to provide both 14.1-MeV and 2.45-
MeV neutron coverage. The IEC Bremsstrahlung source provides broad area 80 kV x-
rays. An array of gamma and x-ray detectors is provided for simultaneous x-ray
analysis using a fuzzy logic artificial intelligence system to interpret the combined
signals. In the inspection station, shown in Figure 5.2, typical of airport luggage
inspection stations, objects being interrogated pass between sources and detection
array on a conveyor belt. For maximum efficiency a duplicate conveyor belt and
detection array (not shown in Figure 5.2) would be placed on the left hand side of the
IEC sources. For other cases, such as unloading container from a ship the detectors
system might be suspended along the side of the vessel with containers as they are
lowered from the upper decks to the waiting cargo train cars or trucks (see Figures 5.3
and 5.4 and related discussion). The challenge in these systems is that the unloading
time is short and the container is large and thick. The present system with its multi-lEC
broad coverage and fast fuzzy analysis technology is designed to overcome these
issues. Further, conventional accelerator type systems that are candidates for such use
are hampered by size and cost. Thus, they have not received wide use in sea ports. The
increased accuracy and reduced cost of the present system should enable wide use.
This would close a vital gap in our seaport/airport cargo security that has been widely
cited by critics of the present handling of port security.
51
UNCLASSIFIED/ /r;Oll OFFlliil,t.k Wliili &•It~·

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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.