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- Newsgroups: sci.space
- Path: sparky!uunet!munnari.oz.au!yarrina.connect.com.au!melba.bby.com.au!gnb
- From: gnb@baby.bby.com.au (Gregory N. Bond)
- Subject: Re: *** BUSSARD RAMSCOOP ***
- In-Reply-To: Jon J Thaler's message of Thursday, 7 Jan 1993 12:03:40 PST
- Message-ID: <1993Jan8.032819.2268@bby.com.au>
- Sender: usenet@bby.com.au (news READER id)
- Nntp-Posting-Host: baby
- Organization: Burdett, Buckeridge & Young, Melbourne, Australia
- References: <93007.120340DOCTORJ@SLACVM.SLAC.STANFORD.EDU>
- Date: Fri, 8 Jan 1993 03:28:19 GMT
- Lines: 28
-
- >>>>> On Thursday, 7 Jan 1993 12:03:40 PST, Jon J Thaler <DOCTORJ@SLACVM.SLAC.STANFORD.EDU> said:
- Jon> This is about 13 orders of magnitude larger than the total number of
- Jon> antiprotons ever created and stored (about 10**14)
-
- Well, nobody said it would be easy!
-
- Current antiproton production is geared towards physics, not
- rocketry. It is probably possible to create antimatter more
- efficiently if that is the primary goal. However the energy cost is
- huge because conservation tells you that you only create antimatter
- with at least E=mc^2 input energy. Think of the antiprotons as very
- high energy density batteries!
-
- So, even assuming 100% conversion efficiency, 1kg of antimatter =
- 10^19 Joules, or about 300 years output from a 1GW coal or nuclear
- power station, to produce. It will release twice this amount when
- mixed with ordinary matter.
-
- Now if we could generate antiprotons with better than 50% efficiency,
- we have an inexhaustible energy supply......
-
- Anyone have estimates on the realistic estimates on achievable
- conversion efficiency? 10^4?
-
- Greg.
- --
- Gregory Bond <gnb@bby.com.au> Burdett Buckeridge & Young Ltd Melbourne Australia
- Dizzy Gillespie: RIP.
-