Documents / Official release
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.
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Hirsch approach, using electrostatic grids to form a t rap with ions that then brought
electrons in. He realized that this approach could result in a very attractive low level
neutron source for neutron activation applications, and began that development. Such
work was soon taken up in several other laboratories, including Los Alamos Nationa l
Laboratory (LANL), University of Wisconsin and Kyoto University. Meanwhile Bussard's
work continued with strong funding from the military. However, little was published or
known about this until 2008 when he made public appeals on "YouTube" to regain
funding stopped just when the experiment achieved a major success. Subsequ,ently,
funding resumed but R. W. Bussard passed away shortly thereafter due to a long battle
with cancer. His company and work were then taken over by R. Nebel who took leave
from LANL to undertake this new work. That effort is now in progress and represents
the largest IEC power oriented project in the US or elsewhere (but still modest with a
half dozen senior scientists involved). Meanwhile, laboratories elsewhere working on
IEC neutron sources have continued while the U of Wisconsin has added an IEC proton
source as an option using sim ilar technology. The labs, including the UIUC, have fusion
power as an ultimate goal, but must focus on their funded near-term "spin-off"
projects.
At this point the IEC still receives no funding from DOE which remains focused on the
Tokomak route to fusion power. Thus, with little funding, slow progress has been made
in answering the key question of whether or not the IEC can be developed for fusion
power. If it can, the device would be simpler and smaller than a Tokamak, malking it an
extremely attractive option. In addition, its beam - like reactions (highly non-Maxwellian)
make the IEC very well suited for burning alternate ("advanced") fuels like D- 3He and
p- 11B which are much more environmentally favorable than conventional DT fusion .
Unfortunately Tokomaks are not well equipped to go forward to such fuels.
On the other hand, the use of non-power-producing IECs for other applications, such as
sma ll neutron, proton, and x-ray sources, has been .amply demonstrated. Now, the
issue is how well and in what applications the IEC sources compete commercia lly with
other options such as accelerator target sources.
This report is intended to provide the reader with important insight into the physics and
technology of IECs relative to both power and neutron/proton/x-ray sources. With this
background, hopefu lly the reader can formulate an opinion about the potential for IEC
applications. Due to the limited funding for IEC research to date, much more has to be
done to actually demonstrate its application, especially for power production. Thus that
opinion must remain a personal one for the reader.
One other limitation of this report is that it largely provides details based on the
author's work on IECs over the last decade. Thus it will not do justice to the ongoing
work by others, notably at EMC 2 on the Bussard Polywell device or the advanced
gridded IEC neuron/proton so urce development work at the U of Wisconsin, Kyoto
University, and Tokyo Institute of Technology. Some insight into these efforts is given
in comments and in references supplied, but t he reader is encouraged to discuss that
work with those individuals directly.
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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.