Мақола

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. BystritskyJoint Institute for Nuclear Research, Dubna, 141980, RussiaV. V. GerasimovJoint Institute for Nuclear Research, Dubna, 141980, RussiaD. A. Il’guzinJoint Institute for Nuclear ResearchA. R. KrylovJoint Institute for Nuclear Research, Dubna, 141980, RussiaS. S. ParzhitskiiJoint Institute for Nuclear Research, Dubna, 141980, RussiaP.S. Anan'inNuclear Physics Institute, Tomsk Polytechnic University, Tomsk, 634050, RussiaG. N. DudkinNuclear Physics Institute, Tomsk Polytechnic University, Tomsk, 634050, RussiaV. L. KaminskiiNuclear Physics Institute, Tomsk Polytechnic University, Tomsk, 634050, RussiaB. A. NechaevNuclear Physics Institute, Tomsk Polytechnic University, Tomsk, 634050, RussiaV. N. PadalkoNuclear Physics Institute, Tomsk Polytechnic University, Tomsk, 634050, RussiaА. В. ПетровNuclear Physics Institute, Tomsk Polytechnic University, Tomsk, 634050, RussiaM. FilipowiczFaculty of Energy and Fuels, University of Science and Technology, PL-30059, Krakow, PolandJ. WoźniakFaculty of Physics and Applied Computer Sciences, University of Science and Technology, PL-30059, Krakow, PolandV. M. BystritskiǐDepartment of Physics and Astronomy, University of California, Irvine, CA, 92697, USAYu. Zh. TuleushevNational Nuclear Center-Institute of Nuclear Physics, Almaty, 050032, Kazakhstan

Bulletin of the Russian Academy of Sciences Physicsjournal2010en

ABI

Аннотация

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 2 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 U e (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.

Ҳали таржима қилинмаган

Мавзулар

Nuclear Physics and Applications Nuclear physics research studies Advanced Chemical Physics Studies

Идентификаторлар

DOI: 10.3103/s106287381011016x

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