The very small angle neutron scattering instrument at the National Institute of Standards and Technology.

ABSTRACT: A description and the performance of the very small angle neutron scattering diffractometer at the National Institute of Standards and Technology are presented. The measurement range of the instrument extends over three decades of momentum transfer q from 2 × 10^-4 to 0.7 Å^-1. The entire scattering angle range from 8 × 10^-5 to π/6 rad (30°) can be measured simultaneously using three separate detector carriages on rails holding nine 2D detector arrays. Versatile choices of collimation options and neutron wavelength selection allow the q resolution and beam intensity to be optimized for the needs of the experiment. High q resolution is achieved using multiple converging-beam collimation with circular pinholes combined with refractive lense

SUBMITTER: Barker J 

PROVIDER: S-EPMC8985601 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature