Neutron time-of-flight spectroscopy

Neutron Time-of-Flight Spectroscopy

The time-of-flight technique is employed in two of the instruments at the NIST Cold Neutron Research Facility (CNRF). A pulsed monochromatic beam strikes the sample, and the energies of scattered neutrons are determined from their times-of-flight to an array of detectors. The time-of-flight method may be used in a variety of types of experiments such as studies of vibrational and magnetic excit...

Magnetic properties of nano-scale hematite, α-Fe2O3, studied by time-of-flight inelastic neutron spectroscopy.

Samples of nanoscale hematite, α-Fe2O3, with different surface geometries and properties have been studied with inelastic time-of-flight neutron scattering. The 15 nm diameter nanoparticles previously shown to have two collective magnetic excitation modes in separate triple-axis neutron scattering studies have been studied in further detail using the advantage of a large detector area, high res...

National Ignition Facility (NIF) Neutron time-of-flight (nTOF) Measurements

Pulse processing routines for neutron time-of-flight data

A pulse shape analysis framework is described, which was developed for n TOF-Phase3, the third phase in the operation of the n TOF facility at CERN. The most notable feature of this new framework is the adoption of generic pulse shape analysis routines, characterized by a minimal number of explicit assumptions about the nature of pulses. The aim of these routines is to be applicable to a wide v...

Wide-bandwidth Time of Flight Spectroscopy of Turbid Media