The reaction 3He(d, p)4 He has been investigated for E = 6 to 42 keV with the use of D projectiles and 3He atomic gas target nuclides as well as with 3He projectiles and D2 molecular gas target nuclides. These studies show for the first time the predicted effects of electron screening on low-energy fusion cross sections, i.e. a nearly exponential enhancement of the cross sections compared to the case of bare nuclei. The enhancement is about a factor 2 smaller for the case d(3He, p)4He due to the molecular nature of the D2 target nuclides. The reactions 6Li(p, α)3He and 7Li(p, α4He have also been studied for E = 10 to 65 keV with the use of solid LiF targets. The results also indicate an exponential enhancement due to the effects of electron screening.
ASJC Scopus subject areas
- Nuclear and High Energy Physics