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Diskussion:Piezonukleare Reaktion (Quelltext anzeigen)

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Hinweis: dieser Artikel ist schwierig in seiner ersten Fassung zu erstellen, da die Quellen oft unzuverlässig sind und viel Material erst über den Übersetzer laufen muss. Es scheint bislang auch keine Texte zu geben,  in denen auf seriöse Weise das Thema zusammenfassend behandelt wird. Ich werde den Artikel in den nächsten Tagen noch einmal stark überarbeiten, vor allem die Einleitung. Hoffe, dass wir es dann schaffen werden das Thema in einem zusammenfassenden Artikel abzuhandeln. [[Benutzer:Abrax|Abrax]] ([[Benutzer Diskussion:Abrax|Diskussion]]) 10:52, 7. Jan. 2013 (CET)
 
Hinweis: dieser Artikel ist schwierig in seiner ersten Fassung zu erstellen, da die Quellen oft unzuverlässig sind und viel Material erst über den Übersetzer laufen muss. Es scheint bislang auch keine Texte zu geben,  in denen auf seriöse Weise das Thema zusammenfassend behandelt wird. Ich werde den Artikel in den nächsten Tagen noch einmal stark überarbeiten, vor allem die Einleitung. Hoffe, dass wir es dann schaffen werden das Thema in einem zusammenfassenden Artikel abzuhandeln. [[Benutzer:Abrax|Abrax]] ([[Benutzer Diskussion:Abrax|Diskussion]]) 10:52, 7. Jan. 2013 (CET)
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Zitat:
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From: Technology Review Feed - arXiv blog <howdy at arxivblog.com>
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Date: Tue, 07 Jul 2009 12:19:59 +0000
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To: eugen at leitl.org
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Subject: the physics arXiv blog
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[1]the physics arXiv blog
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    _________________________________________________________________
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  [2]Can pressure waves speed up nuclear decay?
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  Posted: 06 Jul 2009 09:10 PM PDT
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  If cavitation can speed up the decay of nuclei in solution, we've yet
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  to see good evidence for it
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  Is it possible to speed up radioactive decay by squeezing atoms?
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  In the last few months, Fabio Cardone at the Institute of
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  Nanostructured Materials in Rome, Italy, and a few pals have posted on
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  the arXiv a growing body of evidence that it does.
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  In March, Cardone and co reported an increase in neutron emissions
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  when crushing marble and granite. Their conjecture is that the
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  crushing causes the piezonuclear fission of iron atoms into two
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  aluminium nuclei emitting two neutrons.
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  But our focus today is a paper published in February, in which the
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  team reported that cavitation--the generation and collapse of tiny
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  bubbles in a liquid using pressure waves--causes the rate of decay of
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  thorium-228 in solution to increase 1000 times.
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  I guess it's not entirely beyond belief that cavitation could have an
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  effect on the nuclei of atoms in solution. Cavitation is known to
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  generate huge pressures and temperatures. By some theories, the energy
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  released in this process is close to that needed for fusion. But it's
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  fair to say that the current consensus is that there is no good
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  evidence that this line has been crossed in practice.
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  Nevertheless, Cardone's claims are interesting and his paper was
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  published in Physics Letters A earlier this year.
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  Today, however, Stephan Pomp and pals from Uppsala University in
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  Sweden, cast some doubt on the result and the methods used by the
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  Cardone team in the Physics Letters A paper.
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  They point out that the Cardone claim is extraordinary given the body
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  of evidence gathered over the past 100 years about nuclear decay. Such
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  an extraordinary claim should be backed by extraordinary evidence.
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  "We find that such evidence is missing in this paper and it even seems
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  that methodological mistakes have been made," they say.
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  Thorium decays be emitting alpha particles. Pomp and pals say Cardone
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  and co placed their detector underneath the glass vessel containing
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  the thorium solution. "We note that the range of the emitted a
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  particles in glass is in the order of tens of micrometers and that it
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  thus would be impossible for particles...to penetrate the vessel."
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  They suggest a number of tests that Cardone and co can do to
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  strengthen their results, such as measuring the background counts when
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  the vessel is empty or filled with pure water in which cavitation is
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  taking place.
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  It'll be interesting to see the Cardone team's reply to these
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  criticisms; perhaps they'll be able answer each point made by Pomp and
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  pals.
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  In the meantime, the question still stands: can pressure waves
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  accelerate nuclear decay? Not on the evidence presented by Cardone and
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  co so far.
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  Ref:
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  [3]arxiv.org/abs/0903.3104 : Piezonuclear Neutrons From Fracturing of
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  Inert Solids
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  [4]arxiv.org/abs/0710.5177: Speeding Up Thorium Decay
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  [5]arxiv.org/abs/0907.0623: Comments on "Piezonuclear decay of
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  thorium" by F. Cardone et. al.
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  [6][ISMAP:di]
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  [7][ISMAP:di]
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  [8][arXivblog?d=yIl2AUoC8zA] [9][arXivblog?d=dnMXMwOfBR0]
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  [10][arXivblog?i=jTN02ri-DWU:fFF5uR7ucW0:gIN9vFwOqvQ]
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  [11][arXivblog?d=7Q72WNTAKBA]
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  [12][arXivblog?i=jTN02ri-DWU:fFF5uR7ucW0:V_sGLiPBpWU]
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  [13][arXivblog?d=l6gmwiTKsz0] [14][arXivblog?d=qj6IDK7rITs]
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  You are subscribed to email updates from [15]Technology Review Feed -
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  arXiv blog
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  To stop receiving these emails, you may [16]unsubscribe now. Email
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  delivery powered by Google
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  Google Inc., 20 West Kinzie, Chicago IL USA 60610
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References
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  Visible links
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  1. http://www.technologyreview.com/
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  2. http://feedproxy.google.com/~r/arXivblog/~3/jTN02ri-DWU/click.phdo
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  3. http://arxiv.org/abs/0903.3104
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  4. http://arxiv.org/abs/0710.5177
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  5. http://arxiv.org/abs/0907.0623
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  6. https://feedads.g.doubleclick.net/~a/7TtC0qFvxWUyO1UjnX7_se8lXeQ/0/da
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  7. https://feedads.g.doubleclick.net/~a/7TtC0qFvxWUyO1UjnX7_se8lXeQ/1/da
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  8. http://feeds.feedburner.com/~ff/arXivblog?a=jTN02ri-DWU:fFF5uR7ucW0:yIl2AUoC8zA
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  9. http://feeds.feedburner.com/~ff/arXivblog?a=jTN02ri-DWU:fFF5uR7ucW0:dnMXMwOfBR0
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  10. http://feeds.feedburner.com/~ff/arXivblog?a=jTN02ri-DWU:fFF5uR7ucW0:gIN9vFwOqvQ
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  11. http://feeds.feedburner.com/~ff/arXivblog?a=jTN02ri-DWU:fFF5uR7ucW0:7Q72WNTAKBA
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  12. http://feeds.feedburner.com/~ff/arXivblog?a=jTN02ri-DWU:fFF5uR7ucW0:V_sGLiPBpWU
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  13. http://feeds.feedburner.com/~ff/arXivblog?a=jTN02ri-DWU:fFF5uR7ucW0:l6gmwiTKsz0
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  14. http://feeds.feedburner.com/~ff/arXivblog?a=jTN02ri-DWU:fFF5uR7ucW0:qj6IDK7rITs
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  15. http://www.technologyreview.com/
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  16. http://feedburner.google.com/fb/a/mailunsubscribe?k=118r9-S4Z0vJg-AkQPASPmDmlGQ
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  Hidden links:
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  17. http://fusion.google.com/add?source=atgs&feedurl=http://feeds.feedburner.com/arXivblog
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  18. http://ads.pheedo.com/click.phdo?s=f85a318b1415ac46ca09ffdec64ec4c7&p=1
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