Abstract
In a neutron scattering instrument, beam flux is important for reducing the measurement time and increasing the statistics of the acquired data. Neutron focusing optical devices, such as parabolic or elliptical supermirrors, have been used to improve the flux at the sample. The aim of this study is to design a focusing guide for gaining high neutron flux with appropriate beam divergence. In this study, a method of arranging multiple layers of parabolic and elliptical mirrors, generating several focal points, is proposed to minimize the beam loss due to absorption during neutron beam focusing. The proposed focusing guide design is simulated via a Monte Carlo neutron ray-tracing simulation package. The practical realization of this proposed design will aid in engineering advanced neutron beam guiding devices and systems capable of producing and delivering neutron beams with high flux, improved intensity, and minimum divergence.
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