Fundamental Neutron Physics Beamline at the Spallation Neutron Source at ORNL

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.

References in corpus (6)

• The neutron and its role in cosmology and particle physics
• Characterization of a ballistic supermirror neutron guide
• Experiments in Fundamental Neutron Physics
• Nab: Measurement Principles, Apparatus and Uncertainties
• First results from the NPDGamma experiment at the Spallation Neutron Source
• Optimization of the Ballistic Guide Design for the SNS FNPB 8.9 A Neutron Line

Cited by in corpus (18)

• A New Cryogenic Apparatus to Search for the Neutron Electric Dipole Moment
• New measurement of the scattering cross section of slow neutrons on liquid parahydrogen from neutron transmission
• First Observation of $P$-odd $\gamma$ Asymmetry in Polarized Neutron Capture on Hydrogen
• Particle Physics at the European Spallation Source
• The Nab Experiment: A Precision Measurement of Unpolarized Neutron Beta Decay
• ANNI - A pulsed cold neutron beam facility for particle physics at the ESS
• An apparatus for studying electrical breakdown in liquid helium at 0.4 K and testing electrode materials for the SNS nEDM experiment
• First Precision Measurement of the Parity Violating Asymmetry in Cold Neutron Capture on ${}^3$He
• Measurement of the absolute neutron beam polarization from a supermirror polarizer and the absolute efficiency of a neutron spin rotator for the NPDGamma experiment using a polarized ${}^3$He neutron spin-filter
• The neutron electric dipole moment experiment at the Spallation Neutron Source
• Monte Carlo calculation and verification of the geometrical factors for the NPDGamma experiment
• A New Neutron Lifetime Experiment with Cold Neutron Beam Decay in Superfluid Helium-4
• Simulations of the nEDM@SNS light collection system efficiency
• Optimizing Spin Dressing Sensitivity for the nEDMSF Experiment
• Measurement of the Parity-Odd Angular Distribution of Gamma Rays From Polarized Neutron Capture on ${}^{35}$Cl
• The n${}^3$He Experiment: Parity Violation in Polarized Neutron Capture on ${}^3$He
• Design and test of a compact and high-resolution time-of-flight measurement device for cold neutron beams
• Monte Carlo calculation of the average neutron depolarization for the NPDGamma experiment