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Article #7383Re: *** BUSSARD RAMSCOOP ***
From: Henry Spencer
Date: Fri, 08 Jan 1993 07:28
Date: Fri, 08 Jan 1993 07:28
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In article <1iimffINNm87@gap.caltech.edu> kwp@wag.caltech.edu (Kevin W. Plaxco) writes:
>>If we mounted a major effort, we could probably be test-firing antimatter
>>rocket engines within ten years...
>
>Electron-positron annilation generates a couple of gamma ray photons...
>Does proton-antiproton anniliation differ?
Yes. It generates pions, which decay to muons, which decay to electrons
and positrons. Roughly speaking. If you assume that all the electrons
and positrons find each other, you end up with gamma rays and neutrinos
in the end... but the pions and muons last long enough to be exploited.
There *would* be a lot of gamma rays flying around, to be sure.
--
"God willing... we shall return." | Henry Spencer @ U of Toronto Zoology
-Gene Cernan, the Moon, Dec 1972 | henry@zoo.toronto.edu utzoo!henry
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Newsgroups: sci.space Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!wupost!cs.utexas.edu!torn!utzoo!henry From: henry@zoo.toronto.edu (Henry Spencer) Subject: Re: *** BUSSARD RAMSCOOP *** Message-ID: <C0Iy2y.6tH@zoo.toronto.edu> Date: Fri, 8 Jan 1993 07:28:09 GMT References: <93007.120340DOCTORJ@SLACVM.SLAC.STANFORD.EDU> <C0IB07.BBL@zoo.toronto.edu> <1iimffINNm87@gap.caltech.edu> Organization: U of Toronto Zoology Lines: 16