Documents / Report
This Defense Intelligence Reference Document from the Defense Intelligence Agency is dated 3 January 2011. It was produced under the Advanced Aerospace Weapon System Applications (AAWSA) Program as part of a series of advanced technology reports. The report asks whether negative mass exists and whether it could be used for propulsion. It concludes that one route might be an ultra-light form of matter that could have gathered at the Moon's center. Reaching it would take a tunnel dug with thermonuclear shape charges.
“Accord”15 pages
UNCLASSIFIED/ ,'l"e" Cl"l"!e1,it tl!!L e11t I If rs is the horizontal radius up to which the rocks at a certain depth have to be shattered (cylindrical case), one finds by equating p(r) in (115) and (117) (116) The total energy required to shatter the rocks to make a tunnel from the center at the moon where r = 0, to its surface where r = R, is then given by summing up over the slices with radius rs and thickness dr (117) where as in eqn (110) s,. ~1010 erg/cm3 is the cohesive binding energy of the rocks. For (119) one can write ' E=llc 2 Rt:, (p,,,,)p 0 )"" f(1-x 2 )" 0 dx. (118) 0 With the help of Euler's betafunction one has '( ')'N (! !!J .,J;;f 1-(xr dx=(ll2)B -,- ec-. 0 2 9 2 (119) Hence, (120) finds that E;:;:2xl0 24 erg:::;,5xl04 kiloton=50Megaton. It must be emphasized that this energy must be quite nonuniformly released along the tunnel shaft. Nuclear fusion explosions below a yield of 10 kiloton become uneconomical with only a fraction of the energy in the fissionable material (needed to 36 UNCLASSIFIED/ ,'P811. 8PPUiiliR.k Wilii &•lkl/'
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Report, from the dia collection. The PDF is mirrored here; the original link is under it. 43 pages are in the text index: search them above, or from the library's search.