ISSN:
1434-601X
Keywords:
PACS. 26.20.+f Hydrostatic steller nucleosynthesis – 34.50.Bw Energy loss and stopping power
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: The energy loss of deuterons in 3He gas was measured at Ed = 15 to 100 keV using the 3He pressure dependence of the 3He(d,p) 4He cross-section at a given incident energy. At the highest energies, the observed energy loss is in good agreement with a standard compilation. However, with decreasing energy the experimental values drop steadily below the theoretical values and near Ed = 18 keV they drop sharply (within 1 keV) reaching the domain of nuclear stopping power. This threshold behavior is due to the minimum 1s→ 2s electron excitation of the He target atoms, i.e. it is a quantum effect. Some consequences are discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100530050054
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