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This Defense Intelligence Reference Document is dated 11 March 2010. It was prepared by the Defense Intelligence Agency's Defense Warning Office as part of the Advanced Aerospace Weapon System Applications program. It is a technical paper arguing that spacecraft driven by deuterium thermonuclear reactions could be built with current science and could reach the outer solar system. It covers magnetic insulation, ignition by proton beams, a Super Marx generator and conjectured chemical superexplosives. It does not discuss any UFO sightings.
From the source:Release of 2026-09-18 Incident: 3/11/10, 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 examines advanced nuclear propulsion for crewed deep-space travel and argues that human missions beyond the Moon would require propulsion systems with both very high thrust and very high specific impulse, which the author contends are difficult to achieve with conventional chemical, nuclear-thermal, and nuclear-electric systems. The report focuses on concepts derived from Project Orion, the discontinued General Atomics nuclear pulse propulsion study sponsored first by ARPA and later by the U.S. Air Force between 1958 and 1965, in which a spacecraft would be driven by repeated nuclear explosions. In this case, the DIRD emphasizes small non-fission-triggered fusion explosions using deuterium, magnetic mirrors, and other unconventional ignition concepts intended to avoid the inefficiencies associated with small fission devices. It presents these ideas as a possible pathway to crewed missions across the solar system, while also linking them to broader visions of long-range human expansion into space. The document is exploratory in character and depends on several unproven ignition methods, enabling technologies, and engineering assumptions. Overall, it is a theoretical examination of fusion-based pulse propulsion concepts rather than as a documentary account of a technology nearing practical realization.
UNCLASSIFIED/ /FOR OFFl@IAL YSE OHL¥
= 100 petawatts, certainly powerful enough to compress the deuterium to more than
thousandfold density.
With the entrapment of the neutrons comes an increase of the specific impulse. With 38
percent of the energy going into the kinetic energy of the neutrons and 62 percent into
charged fusion products, the specific impulse is increased by the factor
.Jl + 38/ 62 =.Jl0/ 6.2 = 1.275. This increases the maximum exhaust velocity from
v =1.S x 109 cm/s to v =1.9 x 109 cm/s = 0.063c.
In the course of the thermal ization in the supercompressed plasma, the neutron
absorption cross section is greatly increased, both in the liner and tamp, with the liner
also compressed to high densities . If the liner and tamp are made from boron, which
has a large neutron-absorption cross section, the spacecraft is heated only by a greatly
reduced thermal neutron flux, and only this much smaller amount of heat must be
removed by a radiator.
Testing the Deuterium Microdetonation Concept
For the Orion bomb propulsion concept, testing was a serious problem. If tested on the
Earth, it would have resulted in the large fallout of fission products. These tests would
have been needed to study the survival of the pusher plate under the repeated
exposure of kiloton fission explosions (or fusion-boosted explosions). Of course, the
tests could have been carried out in space, but this would have been extremely
expensive, because it would have required launch by chemical rockets of the huge
Orion spaceship into space. Fortunately, this is not necessary for the deuterium
microdetonation propulsion concept because there exists an alternative way to generate
a 107-ampere GeV proton beam: replacing the huge spaceship used as a large capacitor
to be charged up to gigavolt potentials with a "Super Marx generator" (Reference 16).
This Super Marx generator can achieve on Earth what the huge spaceship can achieve
in space: the generation of gigavolt 107-ampere proton beams. Since the realization of
pure deuterium beams would obviously be a breakthrough in fusion, the expenditure for
the development of a Super Marx generator would be well justified.
Up until now nuclear fusion by inertial confinement has been achieved only using large
fission explosives as a means (driver) for ignition. From th is experience we know that
the ignition is easy with sufficiently large driver energies, difficult to duplicate with
lasers or electric pulse power by an ordinary Marx generator. The problem therefore is
not the configuration of the thermonuclear explosive but the driver, be it for the ignition
of pure deuterium (D) as in the Mike Test or for the ignition of deuterium-tritium {OT)
as in the Centurion-Halite experiment, because for sufficiently large driver energies the
target configuration is of secondary importance.
Substantially larger driver energies can be reached with the "Super Marx generator." It
can be viewed as a two-stage Marx generator, where a bank of ordinary Marx
generators assumes the role of a first stage. If the goal is the much more difficult
ignition of a pure deuterium microexplosion, the Super Marx generator must in addition
deliver a much larger amount of energy (compared with that of the most powerful
lasers) and also generate a magnetic field in the thermonuclear target that is strong
UNCLASSIFIED/ /FOR: OFFI&il.t.k W&liii OP•k¥
20 Not linked to a story yet.
Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 37 pages are in the text index: search them above, or from the library's search.