Experimental determination of the electron screening potential energy for the d(d, n)3He Reaction in ZrD2 and D2O in the ultralow energy region

V. M. Bystritsky, V. V. Gerasimov, D. A. Il'guzin, A. R. Krylov, S. S. Parzhitskii, P. S. Anan, G. N. Dudkin, V. L. Kaminskii, B. A. Nechaev, V. N. Padalko, A. V. Petrov, M. Filipowicz, J. Wozniak, Vit M. Bystritskii, Yu Zh Tuleushev

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3 Citations (Scopus)

Abstract

This work is devoted to measuring of the values of the astrophysical S-factors and electron screening potential energy for a d(d,n)3He reaction occurring at ultralow energies in zirconium deuteride ZrD2 (3.5-7.0 keV) and heavy water D2O (2.2-6.0 keV). The experiment was performed on the Hall pulsed plasma accelerator at the TPU Nuclear Physics Institute (Tomsk) with ZrD2 and D2O targets produced by the magnetron sputtering of zirconium in a deuterium environment and heavy water freezing-out on a copper support, respectively. A Χ analysis of the dependence of the neutron yields and astrophysical S-factors for the dd reaction on the deuteron collision energy E revealed that the upper bounds of the electron screening potential energy for interacting deuterons in ZrD2 and D2O and of the astrophysical S-factors at the deuteron collision energy E = 0 were Ue(ZrD2) < 30 eV, U e(D2O) < 25 eV, S(0) = (57.2 ± 3.9) keV • b (ZrD2), S(0) = (58.6 ± 3.6) keV • b (D2O) at the 90% confidence level.

Original languageEnglish
Pages (from-to)1570-1574
Number of pages5
JournalBulletin of the Russian Academy of Sciences: Physics
Volume74
Issue number11
DOIs
Publication statusPublished - 1 Nov 2010

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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