Related Experiment Video
Updated: Jan 21, 2026

Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor
Published on: May 7, 2021
FARO: A new type of neutron spectrometer with flux and resolution optimized
1ISIS Neutron and Muon Facility, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Didcot OX11 0QX, United Kingdom.
Abstract:
A new type of high intensity and high resolution time-of-flight near backscattering neutron spectrometer is presented which is capable of an energy resolution of 4.0 μeV with a data collection rate an order of magnitude larger than current near backscattering spectrometers capable of this resolution. This design challenges two accepted norms of high resolution indirect neutron spectrometers: it uses large mosaic pyrolytic graphite (002) crystals instead of nearly perfect silicon (111) crystals to select the final neutron energy, and it operates well away from the normal backscattering condition 2φ ≈ 180° instead using 2φ = 160°. This paper describes the methodology behind this spectrometer along with ray-tracing simulations of the instrument using the McStas program.
Related Concept Videos
NMR Spectrometers: Resolution and Error Correction
IR Spectrometers
Types of Radioactivity
Alpha (α) decay is the emission of an α particle from the nucleus. For example, polonium-210 undergoes α decay:
Mass Spectrometers
Types of Chemical Bonds
Electric Flux

