Article ID Journal Published Year Pages File Type
1830934 Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2007 8 Pages PDF
Abstract

Lead is one of the materials commonly used in the design of neutron sources. However, with the increased accuracy expectations of the predictions for these sources it is no longer prudent to represent the neutron cross-section of lead in the thermal regime by the free gas model. We have therefore generated a scattering kernel for lead for which we have replaced the ideal gas approximation by a generalized crystallographic model, which includes the crystal structure of lead and the inelastic scattering in terms of the phonon spectrum of the material. These theoretical results then were compared to measurements.

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Physical Sciences and Engineering Physics and Astronomy Instrumentation
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