OPPENHEIMER-PHILLIPS EFFECT AND ELECTRON SCREENING IN D+D FUSION REACTIONS

被引：154
作者：
GREIFE, U
GORRIS, F
JUNKER, M
ROLFS, C
ZAHNOW, D
机构：
[1] Institut für Physik mit Ionenstrahlen, Ruhr-Universität Bochum, Bochum, D-44780
来源：
ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI | 1995年 / 351卷 / 01期
关键词：
D O I：
10.1007/BF01292792
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The d(d, n)3He and d(d,p)t fusion reactions have been studied at center-of-mass energies E = 1.6 to 130 keV using intense beam currents from 30, 100, and 450 kV accelerators in combination with detectors in close and far geometry. The cross sesction ratio, R(E) = sigma(d,n)/sigma(d, p), approaches unity (within 2%) at low energies; thus there is no experimental evidence for the Oppenheimer-Philips effect at subcoulomb energies. The cross sections of d(d,p)t at E less-than-or-equal-to 10 KeV show clear evidence for electron screening effects. However, the observed cross section enhancement is significantly larger than can be accounted for from available atomic physics models.
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页码：107 / 112
页数：6
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