Ultra-Small-Angle Neutron Scattering Instrument

Ultra-small-angle neutron scattering (USANS) is a method for studying structures in the 100 nm to 10 ųm range by diffraction. USANS uses a neutron beam with an extremely sharp angular profile which can be obtained by diffraction from a perfect crystal (“Bonse-Hart” technique). USANS has all the normal advantages of neutron; contrast different to that of x-rays, ability to vary contrast using deuteration, sensitivity to magnetism, and penetration into macroscopic samples.