A Relative Measurement of the 10B(n,&alpha;1&gamma;)7Li Cross Section Between 0.2 and 4.0 MeV

R. A. Schrack; O. A. Wasson; D. C. Larson; J. K. Dickens; J. H. Todd

doi:dx.doi.org/10.13182/NSE93-A24044

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A Relative Measurement of the ¹⁰B(n,α₁γ)⁷Li Cross Section Between 0.2 and 4.0 MeV

R. A. Schrack, O. A. Wasson,D. C. Larson, J. K. Dickens, J. H. Todd

Nuclear Science and Engineering / Volume 114 / Number 4 / August 1993 / Pages 352-362

Technical Paper / dx.doi.org/10.13182/NSE93-A24044

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Relative cross-section measurements for the ¹⁰B(n, α₁γ)⁷Li reaction were made using the Oak Ridge Electron Linear Accelerator Laboratory neutron source. The cross sections were measured by observing the 478-keV photon using an intrinsic germanium detector. The neutron flux was monitored with a high-efficiency plastic scintillator. Monte Carlo calculations were used to provide multiple-scattering and neutron-attenuation corrections to the data. The measured cross sections differ as much as 40% from the ENDF/B-VI evaluation for incident neutron energies greater than 1.5 MeV.