Summary
The screening length of the deuterium ion by surrounding electrons in a palladium metal lattice, as estimated using two approaches—viz. the Thomas-Fermi screening theory and the Debye screening theory for plasmas in metal—is found to be less than the interatomic separation of ordinary hydrogen molecules. This has important implications for the possibility of cold nuclear fusion at room temperature, since slight fluctuations in equilibrium conditions may drive the deuterons to fuse together. The relative magnitudes of screening length for the cold nuclear fusion regime and classical hot nuclear regimes (inertial and magnetic confinement) reveal that in the former a comparatively smaller amount of energy is needed to overcome the repulsive Coulomb barrier between two deuterium ions.
References
M. Fleischman andS. Pons:J. Electroanal. Chem.,261, 301 (1989).
S. E. Jones, E. P. Palmer, J. B. Czirr, D. L. Decker, G. L. Jensen, J. M. Thorne, S. F. Taylor andJ. Rafelski: University of Arizona preprint, AZPHTH/89-18 (March 1989).
A. De Ninno, A. Frattolillo, G. Lollobattista, L. Martinis, M. Martone, L. Mori, S. Podda andF. Scaramuzzi:Europhys. Lett.,9, 221 (1989).
P. Perfetti, F. Cilloco, R. Felici, M. Capozi andA. Ippoliti:Nuovo Cimento D,11, 921 (1989).
J. Rafelski, M. Gajda, D. Harley andS. E. Jones: University of Arizona preprint, AZPH-TH/89-19 (March 1989).
S. E. Koonin andM. Nauenberg: submitted toNature (1989).
F. A. Lewis:Plarinum Met. Rev.,26, 20, 7, 121 (1982);F. Antonangeli, A. Balzarotti, A. Bianconi andP. Perfetti:Nuovo Cimento B,39, 704 (1977).
N. W. Ashcroft andN. D. Mermin:Solid State Physics, (Holt-Saunders International Editions; Tokyo, 1981);C. Kittel:Quantum Theory of Solids (John Wiley and Sons, New York, N. Y., 1967);D. Pines:The Many Body Problems (Benjamin, New York, N. Y., 1961).
G. Gamow:Z. Phys.,51, 204 (1928);Phys. Rev.,53, 595 (1938).
F. F. Chen:Introduction to Plasma Physics (Plenum Press, New York, N. Y., 1974).
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Vaselli, M., Harith, M.A., Palleschi, V. et al. Screening effect of impurities in metals: a possible explanation of the process of cold nuclear fusion. Il Nuovo Cimento D 11, 927–932 (1989). https://doi.org/10.1007/BF02455300
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DOI: https://doi.org/10.1007/BF02455300