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Enhanced electron screening in d(d,p)t for deuterated metals

Abstract.

The electron screening effect in the d(d,p)t reaction has been studied for deuterated metals, insulators, and semiconductors, i.e. 58 samples in total. As compared to measurements performed with a gaseous D2 target, a large effect has been observed in most metals, while a small (gaseous) effect is found, e.g., for the insulators, semiconductors, and lanthanides. The periodic table provides the ordering of the observed small and large effects in the samples. An explanation of the large effects in metals is possibly provided by the classical plasma screening of Debye applied to the quasi-free metallic electrons. The data also provide information on the solubility of hydrogen in the samples.

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Correspondence to C. Rolfs.

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Received: 25 July 2003, Revised: 15 September 2003, Published online: 23 December 2003

PACS:

25.10. + s Nuclear reactions involving few-nucleon systems - 25.45.-z 2 H-induced reactions - 95.30.-k Fundamental aspects of astrophysics

For the LUNA Collaboration; supported in part by BMBF (06BO812 and 05CL1PC1/1), GSI (Bo-Rol), DFG (Ro429/31-1 and 436Ung113), OTKA (T034259, T042733, F043408), and Dynamitron-Tandem-Laboratorium Bochum.

Communicated by D. Schwalm

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Raiola, F., Gang, L., Bonomo, C. et al. Enhanced electron screening in d(d,p)t for deuterated metals. Eur. Phys. J. A 19, 283–287 (2004). https://doi.org/10.1140/epja/i2003-10125-0

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Keywords

  • Hydrogen
  • Periodic Table
  • Screening Effect
  • Electron Screening
  • Plasma Screening