Fundamental Neutron Physics Beamline at the Spallation Neutron Source at ORNL

TL;DR

The paper details the design and capabilities of the Fundamental Neutron Physics Beamline at ORNL, enabling advanced experiments in nuclear, particle, astrophysics, and cosmology using pulsed neutron beams.

Contribution

It provides a comprehensive description of the beamline's design, components, and measured fluxes, facilitating future research in fundamental neutron physics.

Findings

Beamline successfully delivers pulsed slow neutron beams.

Measured fluxes support diverse experimental applications.

Design principles optimize neutron beam quality and intensity.

Abstract

We describe the Fundamental Neutron Physics Beamline (FnPB) facility located at the Spallation Neutron Source at Oak Ridge National Laboratory. The FnPB was designed for the conduct of experiments that investigate scientific issues in nuclear physics, particle physics, astrophysics and cosmology using a pulsed slow neutron beam. We present a detailed description of the design philosophy, beamline components, and measured fluxes of the polychromatic and monochromatic beams.