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- From: dj@ssd.kodak.com (Dave Jones)
- Newsgroups: sci.space
- Subject: Re: Antiproton-boosted fission
- Message-ID: <1992Jul23.154233.4242@pixel.kodak.com>
- Date: 23 Jul 92 15:42:33 GMT
- References: <9207230112.AA03442@cmr.ncsl.nist.gov>
- Sender: news@pixel.kodak.com
- Organization: :noitazinagrO
- Lines: 41
-
- In article <9207230112.AA03442@cmr.ncsl.nist.gov> roberts@CMR.NCSL.NIST.GOV (John Roberts) writes:
- >
- >-From: bwood@diva.Berkeley.EDU (Blake Philip Wood)
- >-Subject: Antiproton-Boosted Microfission (was: Antimatter ...)
- >-Date: 22 Jul 92 13:05:55 GMT
- >
- >-All the postings so far have missed the most realistic application of
- >-antimatter to space propulsion: antiproton-boosted microfission.
- >-This is being investigated by a number of folks at Penn State, in
- >-collaboration with some people at Phillips Lab in Albuquerque.
- >-The Penn State lead is R.A. Lewis. The reference I happen to have
- >-on hand is from Nuclear Science and Engineering, (109) p.411 (1991).
- >-The basic idea is that hitting a U235 or Plutonium nucleus with an
- >-antiproton makes it so unstable that you get an average of 16 neutrons
- >-out of the resulting fission, as opposed to the usual 2-3. This means
- >-that the critical mass which can be completely fissioned is very
- >-small.
- >-The article above quotes
- >-results from another paper which suggests that fissioning one
- >-70mg Plutonium pellet per second in this fashion, each event requiring
- >-only 2e8 antiprotons, could yield 5GW of power in a complete propulsion
- >-system with a specific mass of only 0.07 kg/kW.
- >
- >Great! Now we can build hand-held tactical nuclear machine guns. (One shot
- >destroys a building several miles away.) :-( (Another E.E. Smith idea,
- >this time from the Skylark series.)
- >
- >Maybe they ought to be careful of who gets hold of the technology.
- >
- You missed out a few details: the trick involves inertial confinement
- (ICF in the original posting) so you need megawatt lasers as well as
- the 10 Gev accelerator that makes the antiprotons. I suppose you could
- use ion beam ICF and make the accelerator do double duty. Hardly a
- portable weapon though.
-
-
- --
- ||))) If you build it )))))))))))))))))))))))))))))|
- ||))) They will cancel it - Field of Dweebs. )))))))))))))))))))))))))))))|
- ||))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))|
- ||Dave Jones (dj@ekcolor.ssd.kodak.com) | Eastman Kodak Co. Rochester, NY |
-