Abstract
Thed(d, n) 3He andd(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)=σ(d,n)/σ(d, p), approaches unity (within 2%) at low energies; thus there is no experimental evidence for the Oppenheimer-Phillips effect at subcoulomb energies. The cross sections of d(d, p)t at E≦10keV 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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Supported in part by the Deutsche Forschungsgemeinschaft (Ro429/18-3 and Ro429/21-3)
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Greife, U., Gorris, F., Junker, M. et al. Oppenheimer-Phillips effect and electron screening ind+ d fusion reactions. Z. Physik A - Hadrons and Nuclei 351, 107–112 (1995). https://doi.org/10.1007/BF01292792
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DOI: https://doi.org/10.1007/BF01292792