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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.
UNCLASSIFIED/ ,SFOA OFFI&IAk WSE 8Ptklf Figures Figure 1.1. An UIUC Spherical IEC .............................................................................. 1 Figure 1.2. Idealized Potential Structure Calculated by Hirsch for Monoenergetic Figure 2.2. Neutron Rates Measured With the IEC: Neutron Rates Measured With Figure 2.5. Scheme for Landmine Detection Using a Hybrid Magnetron Type Figure 2.6. 3He Ion Source for Use in 3He - 3He Fusion Rate Studies at the U Of Figure 3.3. Illustration of the IEC Jet Thruster Experiment Showing Central Figure 4.6. The Definition of the Parallel and Perpendicular Velocities at the IEC Figure 4.10. Plot of Growth Rate of Spherically Converging/Diverging Ion-Beam Ions With No Angular Momentum ......................................................... 6 Figure 1.3. Discharge Modes in Gridded Devices Identified by Miley ...................... 9 Figure 1.4. Photo of Star Mode Seen Through a Reaction Vessel Port Window ....... 9 Figure 1.5. Schematic of the UIUC RF Gun Injector for IEC Experiments .... .......... 11 Figure 1.6. RF Gun Attached to an IEC Chamber in the UIUC Laboratory.............. 12 Figure 1.7. Photo of Center Spot Formation ......................................................... 12 Figure 2.1. The "Historic" Early IEC Ion Injection Experiment ............................. 14 the IEC of Figure 2.1 Exceeded 109 DT n/s at 150 kV ......................... 14 Figure 2.3. Photograph of a STAR Mode Discharge ............................................... 16 Figure 2.4. IEC Landmine Detection Project at Kyoto University .......................... 17 IEC Neutron Source ............................................................................ 18 Wisconsin .................................................................................... ........ 19 Figure 3.1. Two Types of Cylindrical IECs ............................................................. 22 Figure 3.2. Jet Operational Mode in Experimental IEC Device and Jet Set-Up ...... 24 Grid and Two Jet Grids ....................................................................... 27 Figure 3.4. Dipole Reactor Propulsion Scheme ..................................................... 29 Figure 3.5. Dipole Magnetic Field and Layout of Devices ...................................... 30 Figure 3.6. Electron Density Vs. Dipole Magnet Field Strength at 25mtorr, 20mA 31 Figure 4.1. Cross Section of the Experimental Layout of the PFX-I Experiment .... 34 Figure 4.2. Detail of the Anode and the Ion Injection Port in PFX-I ..................... 35 Figure 4.3. Plot of the Q-Value ............................................................................. 37 Figure 4.4. Sketch of Two Opposite Limits of the Beam-Maxwellian Equilibrium .. 38 Figure 4.5. The Definition of the Double Well Depth ............................................. 39 Cathode Grid ...................................................................................... 39 Figure 4.7. The Double Well Potential Calculated With IXL Code ......................... 40 Figure 4.8. Ion Density Profile for Potential Well ................................................. 40 Figure 4.9. The D-D Fusion Reaction Rate Versus Cathode Current ..................... 40 Instability......................................................................................... 42 Figure 4.11. Diagram Showing Equipotential Surfaces of the IEC Cathode Grid .. 45 Figure 4.12. Results for Calculations for Ion Energy Distributions 1st Pass ......... 45 Figure 5.1. Block Diagram of the IEC Pulsed Power System ................................. 49 Figure 5.2. Schematic (View From Top) of a Broad Coverage IEC Inspection System for Luggage Inspection ··············································•• 11••······· 51 Figure 5.3. Further Illustration of the Integrated System for Airport Luggage Inspection ........................................................................................... 53 Figure 5.4. Further Illustration of the Integrated .System for Ship Container Inspection .......................................................................................... 53 Figure S.S. Image of a Fusion II Spaceship, a 750-MWe IEC Fusion-Powered Manned Spacecraft With Ion Thruster Propulsion ............................. 54 Figure 5.6. Scale Schematic of Fusion Ship II, a 750-MWe IEC Fusion Spacecraft .......................................................................................... 55 Figure 5.7. Illustration of a Three-Unit MCSA Device............................................ 57 Figure 5.8. Diagram of Belt-Cusp Fields and Particle Recirculation ............ ........... 57 UNCLASSIFIED/ ,CFOA OFFI&IAk WSE 8PtLY V
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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.