Defense Intelligence Reference Document Positron Aerospace Propulsion

Defense Intelligence Agency · 35 pages · text from the file's own layer

This unclassified Defense Intelligence Reference Document from the Defense Intelligence Agency is dated 2 March 2010. It was produced in FY 2009 under the Advanced Aerospace Weapon System Applications (AAWSA) Program. The report reviews work on using positrons as aerospace fuel. It covers air-breathing turbojet and ramjet engines, unmanned aircraft, missiles, single-stage reusable vehicles, positron rockets and a crewed Mars mission, along with how positrons could be produced and stored. It concludes that a first positron-powered flight around the globe could be possible within 10 years.

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“small beings”5 pages

p. 7 …To keep engines small, the combustion rate in the engine needs to be high. 5 At…
p. 17 …A small fraction of the hot exit propellant is bled off to a turbine that drives…
p. 22 …Alternatively, solar collectors or closed-loop nuclear reactors could be employed. To improve ablation efficiency, annihilation…
p. 28 …could be produced in 6 months to enable a globe-encircling flight of a small air…
p. 31 …Because this process is proportional to B2, magnetic fields should be small-less than 0.1…

UNCLASSIFIED/ }F81il 8FFll!ltllt ~81!!! SHLY
LN2 or Ne
(a)
(b)
(c)
H2
P<»itronTrap
Pb ENCASED e+
(d)
Figure 12. Fluid Systems. (a) One-fluid system of LN7 or Ne propellant; (b) Two-fluid system of LH, and LXe; (c)
Two-fluid flow-through system with LH2 at higher mass flow rates than LXe; and (d) One-fluid LH2 system with lead
encapsulated Ps (courtesy Positronics Research LLC) 36
15
UNCLASSIFIED/ ;«F81il 8FFIIIAI!: 1!181! &••1::Y

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Report, from the dia collection. The PDF is mirrored here; the original link is under it. 35 pages are in the text index: search them above, or from the library's search.