Techniques of neutron physics

While the technique of neutron radiography has been known for several decades, it has become a
powerful tool only with the introduction of new digital detectors during the last ten years. Image quality and contrast enhancement have been pushed further ever since and have reached a high
standard. We present the large spectrum of applications.
Ultra Small Angle Neutron Scattering ( USANS ) measures the elastic scattering from scattering length density fluctuations in the order of microns in real space. Examples are in materials of low contrast, opaque materials (for light scattering) or in magnetic structures. In such cases, neutrons are a unique probe when contrast enhancement is necessary.