Abstract
The electron screening in the d(d,p)t reaction has been studied for the deuterated metal Pt at a target temperature T = 20 °C to 340 °C, and for Co at T = 20 °C and 200 °C. The enhanced electron screening decreases with increasing temperature, where the data agree with the plasma model of Debye applied to the quasi-free metallic electrons. The data represent the first observation of a temperature dependence of a nuclear cross-section. We also measured the screening effect for the deuterated metal Ti (an element of group 4 of the periodic table) at T = −10 °C to 200 °C: above 50 °C the hydrogen solubility dropped to values far below unity and a large screening effect became observable. Similarly, all metals of groups 3 and 4 and the lanthanides showed a solubility of a few percent at T = 200 °C ( compared to T = 20 °C) and a large screening became also observable. Within the Debye model the deduced number of valence electrons per metallic atom agrees with the corresponding number from the Hall coefficient, for all metals investigated.
for the LUNA Collaboration.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
H.J. Assembaum, K. Langanke, C. Rolfs, Z. Phys. 327, 461 (1987).
F. Raiola, et al., Eur. Phys. J. A 13, 377 (2002).
F. Raiola, et al., Eur. Phys. J. A 19, 283 (2004).
J. Kasagi et al., J. Phys. Soc. Jpn. 71 2881 (2002); J. Kasagi et al., J. Phys. Soc. Jpn. 73, 608 (2004).
K. Czerski, A. Huke, A. Biller, P. Heide, M. Hoeft, G. Ruprecht, Europhys. Lett. 54, 449 (2001).
U. Greife, F. Gorris, M. Junker, C. Rolfs, D. Zahnow, Z. Phys. A 351, 107 (1995).
A. Züttel, Naturwissenschaften 91, 157 (2004).
C.M. Hurd, The Hall Effect in Metals and Alloys (Plenum Press, 1972).
F. Raiola, PhD Thesis, Ruhr-Universität Bochum (2005).
Landolt-Börnstein, Vol. II.6 (Springer, Berlin, 1959).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2006 Società Italiana di Fisica / Springer-Verlag
About this paper
Cite this paper
Raiola, F. et al. (2006). Enhanced d(d,p)t fusion reaction in metals. In: Fülöp, Z., Gyürky, G., Somorjai, E. (eds) The 2nd International Conference on Nuclear Physics in Astrophysics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-32843-2_11
Download citation
DOI: https://doi.org/10.1007/3-540-32843-2_11
Received:
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-32842-1
Online ISBN: 978-3-540-32843-8
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)