Skip to McMaster Navigation Skip to Site Navigation Skip to main content
McMaster logo

Nuclear @ McMaster

Neutron Diffraction

Neutron diffraction is a non-destructive technique that is used to probe the structure of materials at the atomic level. The sample is placed within a neutron beam and the angles at which the neutrons are scattered by the material are recorded and information is gathered

The McMaster Alignment Diffractometer (MAD) is a general purpose triple-axis instrument that can be used to measure large angle neutron diffraction from samples in single crystal, polycrystalline, and powder form.  It is primarily used for sample alignment and the evaluation of crystal quality.  However, more advanced characterization measurements (determination of crystal structure, studies of phase transitions, inelastic neutron scattering) may be available upon request.

The McMaster Small Angle Neutron Scattering beamline (MacSANS) is a state-of-the-art instrument that will be used to measure neutron diffraction in the small angle regime (< 4 degrees).  This low angle scattering provides detailed information about the nanoscale structure of materials, for lengthscales ranging from ~0.5 to 125 nm.  MacSANS will be used to study a broad range of nanostructured materials, including polymers, biological membranes, metals and alloys, exotic magnets, and high temperature superconductors.  This instrument is currently under construction.