ICAN-II
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ICAN-II was a proposed crewed interplanetary spacecraft that used the
Stanislaw Ulam in the late 1950s. The Orion was intended to be used to send humans to Mars and Venus by 1968. The ICAN-II also, in a sense, utilizes nuclear "bombs" for thrust. However, instead of regular fission bombs like the Orion would utilize, ICAN-II uses what are, essentially, many tiny hydrogen bombs, set off by a stream of anti-protons. Ecological concerns would probably require that ICAN-II be assembled in space.[1]
The radiation from ICAN-II's ACMF engine would be intercepted by a 4-meter radius silicon carbide shell. Additionally, 1.2 meters of lithium hydride will shield the fuel rings from high-energy neutrons that are ejected from the nuclear explosions, and 2.2 meters of shielding will protect the crew modules. The spacecraft would have a total mass of 625 metric tons, with 82 additional metric tons available for payload. This is more than sufficient to carry a Mars lander and exploration vehicles.
See also
References
- ^ "Antimatter Catalyzed Micro Fission/Fusion Drive". ffden-2.phys.uaf.edu. Retrieved 2017-01-19.