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- Newsgroups: sci.physics.fusion
- Path: sparky!uunet!spool.mu.edu!caen!hellgate.utah.edu!lanl!beta.lanl.gov!mwj
- From: mwj@beta.lanl.gov (William Johnson)
- Subject: "Clumps of neutrons" (was: CNF biblio...)
- Message-ID: <1993Jan7.221504.15610@newshost.lanl.gov>
- Summary: Theoretically *maybe*, but none seen by good experimentalists
- Sender: news@newshost.lanl.gov
- Organization: Los Alamos National Laboratory
- References: <9C0D43A6BE3FA08B2D@vms2.uni-c.dk>
- Date: Thu, 7 Jan 1993 22:15:04 GMT
- Lines: 38
-
- I will briefly poke my head up, out of lurker mode, for this one. In
- article <9C0D43A6BE3FA08B2D@vms2.uni-c.dk> Dieter Britz <BRITZ@kemi.aau.dk> writes:
- >here is the next lot. You will perhaps admire my straight face in the
- >abstracts below (I do), in the face of strong provocation, you'll have to
- >admit. The flavour of the month seems to be clumps of neutrons; three out of
- >the four suggest them, either as dineutrons (Yang), quad-neutrons (Matsumoto)
- >or even up to 1E09 in a bunch (Fisher). In all cases, the observed anomalies
- >of cold fusion are thus explained, it seems.
-
- Readers should be aware that explanations involving polyneutrons aren't
- *totally* incredible, at least on the face of them. (When you get down
- to details ... more about that in a minute.) Various more or less
- credible models have been proposed that allow for the existence of very
- weakly bound polyneutron states, particularly 6N and 4N, although the
- main model positing that 6N would be weakly bound also says that 4N
- would be slightly *un*bound. A series of experiments looking for
- polyneutrons using radiochemical techniques were performed by Anthony
- Turkevich (U. of Chicago, a most reputable nuclear chemist) and his
- colleagues during the late 1970s; Dieter, let me know if you're
- interested, and I'll try to scare up a reference.
-
- What is significant, however, is that these *very* careful experiments
- (nobody in the world was better at stuff like that than Tony) turned
- up not a shred of evidence for stable 6N, 4N, or any-other-N. It's
- fine to "explain cold fusion" in terms of some exotic mechanism like
- this; but when extremely competent experimenters go to great lengths to
- find the agent behind the exotic mechanism and fail, the explanation
- begins to lose some of its appeal. Bluntly, I have a lot more faith
- in Turkevich than in the polyneutron advocates, and it will take more
- than unreproducible claims of excess heat to change that.
-
- As for ultraheavy hydrogen, let's not get ridiculous ...
-
- --
- Bill Johnson | My suggestion for an Official
- Los Alamos National Laboratory | Usenet Motto: "If you have nothing
- Los Alamos, New Mexico USA | to say, then come on in, this is the
- !cmcl2!lanl!mwj (mwj@lanl.gov) | place for you, tell us all about it!"
-