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This Defense Intelligence Reference Document, dated 10 March 2010, was prepared by the Defense Intelligence Agency's Defense Warning Office under the Advanced Aerospace Weapon System Applications Program. It surveys the basics, experimental status, theory and possible uses of inertial electrostatic confinement (IEC) fusion, with emphasis on work at the University of Illinois Urbana-Champaign. It covers neutron sources, explosives detection and space propulsion. It ends by proposing a 12-gun hydrogen plasma experiment meant to show breakeven conditions for p-11B fuel.
From the source:Release of 2026-09-18 Incident: 3/10/10, Las Vegas, Nevada. Released with redactions. This document is a Defense Intelligence Reference Document (DIRD), a technical reference format used by the Defense Intelligence Agency (DIA) to capture baseline knowledge on a specific topic for later analytic use. DIRDs are best understood as reference and synthesis products rather than as original research. It is one of 38 DIRDs produced under the Advanced Aerospace Weapon System Applications Program (AAWSAP) between 2009 and 2011. Because AAWSAP’s scope permitted a broad range of supporting topics, not every DIRD in the series directly concerns aerospace systems or future threat assessment. The following summary reflects the DIRD’s scope and framing at the time of writing and should not be read as implying current validation of the concepts discussed. This DIRD surveys inertial electrostatic confinement (IEC) fusion, a relatively unconventional fusion concept that uses electric fields rather than the more established magnetic or laser-based approaches to confine ions, and it reviews both the underlying physics and the experimental work associated with the concept. The report emphasizes that IEC may have nearer-term value as a compact neutron, proton, or x-ray source and as a platform for studying experimental fusion approaches, while also presenting more ambitious possibilities such as aneutronic power generation and propulsion applications. At the same time, it makes clear that the concept remained far from practical fusion power, with experimental devices operating several orders of magnitude below breakeven and with major unresolved issues involving confinement, losses, grid damage, and scale-up. Overall, the document treats IEC as a technically interesting but still highly speculative path toward fusion energy, while suggesting that its more limited spin-off applications were more plausible in the near term than its long-range power generation or propulsion applications.
“Expedition X”1 page
UNCLASSIFIED/ }FOA &FFI@IAL ~!II! er•t I The proposal is to develop a revolutionary small IEC fus ion power unit that could be commercialized in time to impact the energy crisis we now face. This device would have the aggressive goal of burning relatively inexpensive aneutronic p- 11B fuel, avoiding issues of tritium breeding and radioactivity that the D-T burning ITER type devices face. This breakthrough technology is the resu lt of new understanding of ways to create a deep potential electrostatic 'well' for improved confinement in an ion injected IEC. This will be done with specially designed ion guns to inject ions into the IEC with strong focus and controlled angular momentum. This concept builds on a combination of prior sma ll scale experiments with gun injected IECs and simulation of their scale-up to power production using particle-in-cell (PIC) codes and particle tracking analysis described in earlier sections. The small size of the IEC is a key characteristic. If rapid development is to be achieved, the ability to employ small size experiments is essential. Fortunately, confinement scaling in the IEC is in velocity space (vs. physical space which brings in reducing the surface-to-volume ratio), allowing breakeven and power production in small-volume plasmas . Thus in principle, energy breakeven could be demonstrated in the IEC in a very dense plasma "core" occupying only a few cc volume with only a few l00's of watts in and out. This extreme is not currently possible, but use of the new gun injected technology to obtain breakeven in a dense plasma core in the IEC of l00's of cc volume and with 20-25 kW input power seems practical. This proof-of-principle device would demonstrate the physics of energy production and prnvide the basis for going rapidly going to practical IEC power plants. This route could lead to power reactors for distributed power applications in the range of a MW that are only a fraction of the size of an ITER Tokamak type plant or even current fission nuclear plants. Small units of this type could be rapid ly deployed to allow fusion power to have a real impact on t he growing need for energy. Fusion power would then become a vital element in our goal of energy independence. VISION OF A FUTURE P- 11 8 FUSION PLANT In the ultimate power plant, the preferred fusion reaction would employ aneutronic p- 11B fue l, which fuses to produce energetic alpha particles with no neutrons and minimal radioactivity. This eliminates radioactive tritium breeding and corresponding tritium inventory, activation and damage to reactor structural materials and the massive shielding and radiation protection in traditional fission and D-T fusion reactor systems. In this case, p- 11B reactors in the central IEC core result in MeV energy alpha particles according to the reaction: p+ 11B 3a. Due to its inherent non-Maxwellian (beam - like) plasma, the IEC is especially well suited for burning a fuel such as p- 11B which requires high energies (~150 keV) . [See Figure 6.1]. In operation, a bulk of the IEC driving energy is given to ions so an applied voltage of~ 180 kV provides ion energ ies nea r the peak of the p- 11B cross section. In contrast, in Maxwellian-type plasmas typical of magnetic confinement devices, energy is expended t o create ions over a wide distribution of energies. Thus, Tokomaks are designed to operate at much lower ion energies (~20-30 keV) suitable for D-T fusion. The key physics challenge then for the IEC is to achieve good ion confinement via strong ion trapping (i.e. larg e number of recirculations) in the potential well. This trapped plasma must meet the Lawson criterion for energy to break-even with p-11 B, n, ~ 1016 cm·3- sec (two orders of magnitude above the requirement for D-T fusion). Here n is the ion density and -r is the ion confinement time. Assuming the converged core density in the potential well of UNCLASSIFIED/ }FOA: OFFICI0L: !!ii ODIL:¥ 61
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Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 72 pages are in the text index: search them above, or from the library's search.