Abstract
recoils produced from the (α,γNe reaction were detected in coincidence with capture γ rays using a recoil separator, NaI(Tl) γ-ray detectors, and a helium gas target. Total cross sections for cascade and ground state capture were measured in the range 2.35 MeV. Improved measurements of the total width and resonance strength of the MeV () resonance and the resonance strength of the MeV () resonance are reported. The astrophysical S factor for nonresonant capture into the ground state was measured to be 0.26±0.07 MeV b, assuming an energy-independent S factor between and 2.35 MeV. Using theoretical estimates for the energy dependence and branching ratios for the nonresonant capture, a best estimate for the total S factor at 300 keV of 0.7±0.3 MeV b is determined.
- Received 25 March 1987
DOI:https://doi.org/10.1103/PhysRevC.36.892
©1987 American Physical Society