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- Path: sparky!uunet!spool.mu.edu!agate!linus!linus.mitre.org!linus!mbunix!eachus
- From: eachus@Dr_No.mitre.org (Robert I. Eachus)
- Newsgroups: sci.physics.fusion
- Subject: Re: DD->4He + gamma
- Message-ID: <EACHUS.92Jul30141425@Dr_No.mitre.org>
- Date: 30 Jul 92 19:14:25 GMT
- Article-I.D.: Dr_No.EACHUS.92Jul30141425
- References: <199207300852.AA20319@ames.arc.nasa.gov>
- Sender: news@linus.mitre.org (News Service)
- Organization: The Mitre Corp., Bedford, MA.
- Lines: 42
- In-Reply-To: Frank Close's message of Thu, 30 Jul 1992 13:34:16 GMT
- Nntp-Posting-Host: dr_no.mitre.org
-
- In article <199207300852.AA20319@ames.arc.nasa.gov> Frank Close <FEC@v2.rl.ac.uk> writes:
-
- ...Anyone who has studied QED knows that it costs probability to
- shed gammas - roughly alpha=1/137 per gamma in the matrix element.
- The more gamma you shed theless chance. So shedding 2,3 etc is less
- and less likely. Even one kills you by around a million relative to
- the "direct" strong processes of t+p or n+3He.
-
- If Yang is right and has gamma mediated fusion, the three (most)
- probable reactions are:
-
- d + d + gamma --> He4 + gamma
- d + d + gamma --> He3 + n + gamma
- d + d + gamma --> t + p + gamma
-
- As compared to the hot fusion reactions of:
-
- d + d --> He4 + 2 gamma
- d + d --> He3 + n
- d + d --> t + p
-
- First, since there are only two products in the first reaction
- instead of three, and it is energeticly favored, there is no reason in
- a Yang type process why we should see many protons or neutrons.
-
- Also, has anyone looked carefully at the resonances of the various
- palladium isotopes? If the reaction Pd + gamma --> Pd* --> Pd + many
- gammas is going on, a chain reaction is very possible. (The "all the
- deuterium fuses at once" scenario is not real. Assume that there is
- some special state required for fusion, such as pairs of deuterium
- atoms in interstitial sites. As the system approaches criticality,
- the first energetic particle to come along will cause a cascade,
- lowering the number of favorable sites, and thus reducing criticality.
- The initial signature of this will be heat pulses.)
-
- --
-
- Robert I. Eachus
-
- with STANDARD_DISCLAIMER;
- use STANDARD_DISCLAIMER;
- function MESSAGE (TEXT: in CLEVER_IDEAS) return BETTER_IDEAS is...
-