Total nuclear reaction probabilities and average cross sections for 27 to 92 MeV alpha particles in silicon

The total nuclear reaction probabilities for 27--92 MeV {alpha} particles stopping in Si were measured in coincidence studies of {alpha}-{ital d} elastic scattering. These probabilities are proportional to {alpha}-particle range and extrapolate to 2.07% at 100 MeV. They are adequately described both...

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Bibliographic Details
Published in:Physical review. C, Nuclear physics Nuclear physics, 1989-12, Vol.40 (6), p.2473-2478
Main Authors: Warner, RE, van den Berg AM, Berland, KM, Hinnefeld, JD, Zhang, Z, Zhu, YT, Hu, XQ, Li, S
Format: Article
Language:English
Subjects:
651420 - Nuclear Properties & Reactions, A=20-38, Experimental
653003 - Nuclear Theory- Nuclear Reactions & Scattering
ALPHA REACTIONS
CHARGED-PARTICLE REACTIONS
COINCIDENCE SPECTROMETRY
CROSS SECTIONS
DEUTERIUM TARGET
ELASTIC SCATTERING
ELEMENTS
ENERGY RANGE
MEV RANGE
MEV RANGE 10-100
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEAR REACTIONS
OPTICAL MODELS
PROBABILITY
RECOILS
SCATTERING
SEMICLASSICAL APPROXIMATION
SEMIMETALS
SILICON
TARGETS
TOTAL CROSS SECTIONS
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Summary:The total nuclear reaction probabilities for 27--92 MeV {alpha} particles stopping in Si were measured in coincidence studies of {alpha}-{ital d} elastic scattering. These probabilities are proportional to {alpha}-particle range and extrapolate to 2.07% at 100 MeV. They are adequately described both by calculations using Satchler's optical model parameters and by the assumption of an energy-independent reaction cross section of 1170{plus minus}55 mb. They are less well fitted by the Rebel optical model parameters and by predictions of semiclassical theory.
ISSN:0556-2813
1089-490X
DOI:10.1103/PhysRevC.40.2473