DOW-UAP-D125, AAWSAP DIRD, Inertial Electrostatic Confinement Fusion, March 2010
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.
The summary above is sourced from the released file metadata as published to war.gov. The analysis sections below are original to this tracker.
Text of the document
Machine-extracted from the PDF war.gov published (its text layer or OCR), so expect errors, especially in names, numbers and handwriting; the PDF is the authoritative copy. Lines that did not extract as readable text are left out. Showing about 996 words from pages 2, 3, 4, 5, 6, 7 of 72.
PAGE 2
Inertial Electrostatic Confinement Fusion Prepared by: Acquisition Support Division (DW0-3) Defense Warning Office Directorate for Analysis Defense Intelligence Agency AAP Person 70 Administrative Note COPYRIGHT WARNING: Further dissemination of the photographs in this publication is not authorized. This product is one in a series of advanced technology reports produced in FY 2009 under the Defense Intelligence Agency, Defense Warning Office's Advanced Aerospace Weapon System Applications (AAWSA) Program. Comments or questions pertaining to this document should be addressed to!AAP Person 1 AAWSA Program Manager, Defense Intelligence Agency, ATTN: CLAR/DWO-3, Bldg 6000, Washington,
PAGE 3
UNCLASSIFIED/,'FOR OFFIElIAk WSE OPtklf Section I. IEC Background and Basics .................................................................... 1 Bussard HEPS (or Polywell) Concept............................................................ 10 Barnes Nebel Penning Trap .......................................................................... 10 Nebel POPS Device ..............................................................................,......... 10 Miley's "Ion Injected" Device....................................................................... 11 Section II. Select Experiments ............................................................................. 14 Closing Comments............................................................................................ 20 Section III. Other Geometries.............................................................................. 21 Electrically-Driven IEC Jet Thruster................................................................... 22 Relation to Other Prior Thrusters ................................................................. 23 JET Extraction From a Spherical IEC............................................................. 24 Description of the IEC Jet Thruster ............................................................. 24 Comparison to a Conventional "Plasma" Thruster ........................................ 24 Experimental Jet Design and Performance ................................................... 26 Scale-up to p-11B IEC Space Power Unit/Thruster........................................ 28 The Dipole Assisted IEC (DaIEC) .................................................................. 29 Khachan's Studies at U of Sydney .................................................................... 31 Concluding Remarks......................................................................................... 32
PAGE 4
Section IV. IEC Theory ......................................................................................... 34 Potential Well Structure ................................................................................... 38 Tzonev et al. - Deep Well Study ....................................................................... 39 Momota et al. - Study of Virtual Electrode Strudure........................................ 41 Kim - Stability Analysis.................................................................................... 41 Neutron Source Simulations............................................................................... 44 Section V. Potential Applications.......................................................................... 46 Nuclear and Chemical Explosive Detection Techniques ................................ 47 Overview for Weapons/Nuclear Material Simulation Articles ....................... 48 Pulsed Power for the Inspection Station ...................................................... 49 Design of the Total Integrated Interrogation System................................... 50 Detector Array and Analysis System ............................................................ 52 Space Propulsion.............................................................................................. 54 Magnetically-Channeled Spherical IEC Array (MCSA) Concept ......................... 56 Recirculation of Radial Belt Cone Losses ..................................................... 57 Retrapping of Axial-Loss Particles................................................................ 58 Concluding Remarks........................................................................................... 59 Section VI. Possible Next Step Breakeven Experiment ......................................... 60 Demonstration of Net Energy Gain using IEC Aneutronic Fusion ...................... 60 Vision of a Future p-118 Fusion Plant.......................................................,......... 61 Proposed Breakeven Experiment...................................................................... 62 Concluding Remarks......................................................................................... 64
PAGE 5
Figure 1.1. An UIUC Spherical IEC.............................................................................. 1 Figure 1.2. Idealized Potential Structure Calculated by Hirsch for Monoenergetic 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 Figure 2.2. Neutron Rates Measured With the IEC: Neutron Rates Measured With Figure 2.3. Photograph of a STAR Mode Discharge ............................................... 16 Figure 2.4. IEC Landmine Detection Project at Kyoto University .......................... 17 Figure 2.5. Scheme for Landmine Detection Using a Hybrid Magnetron Type IEC Neutron Source ............................................................................ 18 Figure 2.6. 3He Ion Source for Use in 3He -3He Fusion Rate Studies at the U Of Figure 3.1. Two Types of Cylindrical IECs............................................................. 22 Figure 3.2. Jet Operational Mode in Experimental IEC Device and Jet Set-Up ...... 24 Figure 3.3. Illustration of the IEC Jet Thruster Experiment Showing Central 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 Figure 4.6. The Definition of the Parallel and Perpendicular Velocities at the IEC 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 Figure 4.10. Plot of Growth Rate of Spherically Converging/Diverging Ion-Beam 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 51 Figure 5.3. Further Illustration of the Integrated System for Airport Luggage Figure 5.4. Further Illustration of the Integrated .System for Ship Container 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 Figure 5.7. Illustration of a Three-Unit MCSA Device............................................ 57 Figure 5.8. Diagram of Belt-Cusp Fields and Particle Recirculation ....................... 57
PAGE 6
Figure 5.9. Axial Magnetic Field Strength Along Two-Unit MCSA Centerline ......... 58 Figure 5.10. Diagram of Direction Randomization (KAM Effect) Due to the Magnetic Field Null Region in the IEC ............................................... 59 Figure 6.1. p-11B Fusion Cross Section Energy Requirements............................... 62 Figure 6.2. IEC System With Radio Frequency Ion Gun ....................................... 63 Figure 6.3. Multiple Ion Gun Concept ................................................................... 63 Figure 6.4. Differentially Pumped RF-Driven Ion Gun........................................... 63 Table 3.1. Estimated Performance Parameters or the IEC Ion Thruster ............... 28 Table 4.1. Comparison of Analytical and Numerical Estimates of Q-Values in a Beam-Dominated Solution -- for a SO-kV Square Well ......................... 32 Table 5.1. Three Kinds of Techniques Previously Used in Explosives Detection Table 5.2. Comparison of IEC Design and Magnetic Fusion Design ....................... 56
PAGE 7
Inertial Electrostatic Confinement Fusion This report is intended to provide the reader with an overview of the basics, current experimental status, supporting theory, and potential applications of inertial electrostatic confinement (IEC} fusion. Emphasis is placed on work in
Where this file fits in the PURSUE archive
This file is one of DoD's 282 files in the Trump PURSUE disclosure. Within the DoD agency block it ranks #241 of 282 by Anomalousness Index. Across the entire 478-file archive it ranks #416 of 478.
That places it in the lower-scoring band of the archive (416 of 478 by score), typical of investigative-record style files where the report is paper-based rather than instrumented.
Anomalousness Index: 53/100
This is a reference document, not an encounter report, so the index has no encounter to measure here. The value above is the rubric's default for a document that describes no event, shown so every file in the archive can be ranked the same way. Not a probability of extraterrestrial origin - that number is not honestly computable from the released files and this tracker refuses to publish it.
🤖 AI-ASSISTED SCORING · methodology
The six rubric components break down for this file as follows. Each component has a weighted contribution to the final score; the per-component explanation below describes what this file's particular value on that component means in the rubric's framework.
This file is a reference document, not an observation, so no sensor, camera, or witness captured anything. The rubric's sensor axis has no not-applicable option, so a document with no instrument record sits on its lowest tier by default.
There is no witness: this is a document released by the Department of War, not a first-hand account. The rubric assigns this axis from the originating body, so the value reflects the source of the record, not anyone's testimony.
Nothing is being corroborated, because the file does not report an event. Like every file in the archive it takes the rubric's single-source default.
The file describes no object and no motion, so the kinematic axis takes the archive-wide 'no kinematic data' default.
Every file in the archive scores this tier. For a document that describes no event it carries no information about the record at all.
The rubric's default for the file's release status (files released with redactions are catalogued as unresolved, unredacted ones as open). For a document that reports no event this describes how the file was released, not anything that happened.
Bottom line on the score: the 53/100 is the rubric's default for a document that reports no encounter, so it is not a finding about any event and should not be compared with the scores of sighting reports. For the full per-axis weights and the rubric JSON, see /methodology.
Related files in DoD
Other PURSUE files in the same category, ranked by Anomalousness Index.
DOW-UAP-PR024, Unresolved UAP Report, Middle East, 2023
DOW-UAP-PR072, "ADMINISTRATIVE REVISION: IIR 1777 J0032 22 Kazakhstan - UAP in the vicinit…
DOW-UAP-PR106, Unresolved UAP Report, Eastern United States, 2020
DOW-UAP-PR108, Unresolved UAP Report, Western United States, 2020
DOW-UAP-PR109, Unresolved UAP Report, Eastern United States, 2015
DOW-UAP-PR110, Unresolved UAP Report, Eastern United States, 2020
Verification
SHA-256:
This hash is the SHA-256 of the file body war.gov served on the verification date above. War.gov has re-processed some file bodies since first release (re-compression + OCR, no content removed - see /changes); we re-verify and record the change rather than silently serve a stale hash. How to check this yourself →