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This Defense Intelligence Reference Document, dated 1 November 2010, was prepared by the Defense Intelligence Agency's Defense Warning Office under the Advanced Aerospace Weapons System Applications program. It reviews fusion plasma physics, confinement methods and propulsion concepts that use aneutronic fusion fuels such as hydrogen and boron-11. It concludes that pulsed DPF or IEC thrusters may replace satellite ion thrusters in the near term. It also finds that aneutronic fusion propulsion will not be practical beyond the solar system without breakthrough propulsion physics.
From the source:Release of 2026-09-18 Incident: 11/1/10, 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 revisits aneutronic fusion propulsion in a more systems-oriented manner, arguing that fusion concepts using low-neutron fuels such as proton-boron or helium-3 could become attractive for space propulsion because they reduce shielding burdens and may support direct conversion of charged-particle energy into thrust or onboard power. The report reviews the relevant fusion plasma physics and focuses on several candidate confinement approaches, then connects those concepts to possible applications in near-space, orbital, and interplanetary propulsion. It presents the most plausible nearer-term use as very high-power electric or plasma propulsion for satellites and deep-space missions rather than atmospheric flight or interstellar travel, while emphasizing that major obstacles remain in ignition, sustained confinement, system mass, power handling, fuel storage, launch integration, and end-to-end engineering.
“Mission Control”1 page
UNCLASSIFIED/ /FOR OFFICIAL l:191!! 6HLY High Tempenlun Alpha particle production Supercond uctor research needs to be recycled via ne<>.ds to be scaled up and beam dired conversion made to withstand the with electron escape or redirected back into reacto I II Bram Rtaction Produrnlllttrn •n, •11 · 110 O.am The magnetic field separalrix: Plasma rings must be made stable mu.st be shaped for optimal and achie,·e the righ I mir of density confmement, minimal leakage and temperature for sustained and maximum stability fusion and power re.cycling Figure 19. Experiments To Prove a Plasma Fusion Propulsion Concept FAR-TERM DEVELOPMENT In the far term timeframe from 2030 to 2050, design integration of the optimized aneutronic fusion reactors and propulsion systems into aeronautical platforms must be conducted followed by prototype flight tests . Although it is difficult at this point to say which technology will ultimately transition to application, ultimately, industrial collaboration will be necessary to bring forth the propulsion system experience with the fusion plasma physics and sustained ignition engineering and the right mix of material science . The platforms will be launched from the ground, air, or space depending on ease of design integration, availability of secondary boosting technology, and ultimate funding limitations. A roadmap to the development of aneutronic fusion propulsion is shown in Figure 20. The journey begins with a series of experiments specifically designed to address the functionality and practicality of fusion propulsion concepts. These experiments should consist of magnetic field plasma interactions, quenching of induced instabilities, and supplemental analysis to indicate feasibility for basic energy transport and sustainment. After the physics has been demonstrated with numerous field plasma interaction and confinement experiments, the focus can then be more on practical considerations. Although th is transition is certainly not abrupt, a set of success criteria including plasma beta greater than unity, successful ignition, susta ined ignition, power balance (at least theoretical), and basic concept designs should be well established. UNCLASSIFIED/ /FOR 061ilCIAk lal&E 8HL'I 28
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Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 36 pages are in the text index: search them above, or from the library's search.