The new very small angle neutron scattering spectrometer at Laboratoire Leon Brillouin

TL;DR

This paper describes the design of a new very small angle neutron scattering spectrometer featuring a high-resolution detector and innovative collimator, aiming to extend the measurable scattering vector range.

Contribution

It introduces a novel spectrometer design with a 2D image plate detector, supermirror monochromator, and multibeam collimator to improve SANS measurements.

Findings

Extended scattering vector range towards 2x10^{-4} /A

Innovative multibeam collimator design

High-resolution 2D detector implementation

Abstract

The design and characteristics of the new very small angle neutron scattering spectrometer under construction at the Laboratoire Leon Brillouin is described. Its goal is to extend the range of scattering vectors magnitudes towards 2x10{-4} /A. The unique feature of this new spectrometer is a high resolution two dimensional image plate detector sensitive to neutrons. The wavelength selection is achieved by a double reflection supermirror monochromator and the collimator uses a novel multibeam design.