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…

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The three detection techniques shown in Table 5.1 have previously been used
independently in inspection units. The present integrated unit makes use of all three
simultaneously. Thus, the strengths of each device combine to provide consistent
overall coverage of elements/objects.
Table 5.1. Three Kinds of Techniques Previously Used in Explosives Detection
System
Here, TNA and FNA represent thermal and fast neutron activation, respectively.
TNA FNA X-ray
Element Identification Element Density
Nitrogen High Medium -
Carbon Very Low Very High -
Oxygen NA Iligh -
Hydrogen Very High High -
Chlorine Very High High -
C/0 Ratio NA High -
Background Noise High Low NA
Imaging: geometry & localization Pulsed FNA
Limited provides depth High resolution
information information
Suitcase to Suitcase to cargo,
Application Small suitcase not good for
cargo plastics ohjects
Cunfiguraliun CurnplicatcJ Cumplicatcd Simple
Operation & Maintenance Cost High High Low
The integrated IEC system employs a combination of PFNA/TNA methods and
conventional x-ray techniques to collect elemental information as well as a 3-D imaging
of any suspected objects. The 14.1-MeV neutrons from the D-T reaction will be the
primary source for TOF FNA while thermalized neutrons from a block of neutron
thermalizing plastic in front of the 2.45-MeV DD IEC will be used for TNA. This
combination will increase spatial resolution and significantly reduce the false alarm rate
to a low level compared to conventional methods which employ single sources and are
limited to yield due to lack of broad area sources.
Overview for Weapons/Nuclear Material Simulation Articles
The following three categories of items provide a overview of articles of interest for
detection in inspection stations.
A. Explosives which are of high D and N, low C and H elemental densities are listed
below with sizes ranging from 8 x 8 x 8 cm 3 to 20 x 20 x 20 cm 3 .
• RDX (Cyclonite, C3H6N6O6) with p = 1.83 g/cm 3 .
• TNT(Trinitrotoluene, C1HsNJO6) with p = 1.654 g/cm 3 .
• PETN(Penthrite, CsHsN4O12) with p = 1.773 g/cm3.
• TATB(Triaminotrinitrobenzene, C5H 6N6O6 ) with p = 1.93 g/cm3.
48
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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.