Screening and resonance enhancements of the 2H(d, p)3H reaction yield in metallic environments

被引：22
作者：
Czerski, K. [1 ,2 ]
Weissbach, D. [1 ,2 ]
Kilic, A. I. [1 ]
Ruprecht, G. [2 ]
Huke, A. [2 ]
Kaczmarski, M. [1 ]
Targosz-Sleczka, N. [1 ]
Maass, K. [3 ]
机构：
[1] Univ Szczecin, Inst Phys, Ul Wielkopolska 15, PL-70451 Szczecin, Poland
[2] Inst Solid State Nucl Phys, Leistikowstr 2, D-14053 Berlin, Germany
[3] Humboldt Univ, Inst Phys, Brook Taylor Str 6, D-12489 Berlin, Germany
来源：
EPL | 2016年 / 113卷 / 02期
关键词：
FUSION REACTION; CROSS-SECTIONS; LOW ENERGIES; BOMBARDMENT; H-2(D; P)H-3;
D O I：
10.1209/0295-5075/113/22001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The H-2(d, p)H-3 reaction cross-section has been measured for deuteron energies below 25 keV in a deuterized Zr target under improved ultra-high-vacuum conditions and controlled target surface contamination. The increase of reaction enhancement factors towards lower energies is much weaker than that determined before and can result not only from the electron screening effect but also from a suggested 0(+) threshold resonance in He-4. The cross-section calculations performed within the T-matrix approximation enable to estimate a coherent resonance contribution and explain the observed energy dependence of the enhancement factors. Additionally, indications for the increase of the screening energies due to impurities at the target surface could be found. Copyright (C) EPLA, 2016
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页数：6
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