Gamma and Neutron Radiography

This lecture covers the principles and applications of gamma and neutron radiography in industrial settings. It explains the use of X-rays, gammas, and neutrons for imaging internal structures without altering the objects. The advantages of using neutrons, such as high penetration depth and suitable wavelength intervals, are highlighted. Topics include the basics of neutron interactions, neutron diffraction, and the complementarity of gamma and neutron radiography. Special topics like time-resolved radiography, energy-selective radiography, and phase contrast techniques are also discussed. Examples of industrial applications, such as inspection of welds and study of machine components, are presented to illustrate the practical use of these techniques.