Diffraction by Electrons and Neutrons
Videos 7.1-7.5 discuss the use of electrons and neutrons for scattering, with a particular emphasis on tools and techniques for neutron scattering. These videos are independently accessible without viewing those in previous sections.
-
7.1 - The de Broglie Wavelength
Paul A. Heiney
Introduction to using massive particles (electrons, neutrons) for diffraction. The de Broglie relation relates the momentum of a particle to its wavelength. Time 3:46.
-
7.2 - Electron Diffraction
Paul A. Heiney
Wave nature of the electron. The transmission electron microscope. Comparison of electrons, X-rays for diffraction. Low energy electron diffraction (LEED). Time 5:19.
-
7.3 - Introduction to Neutron Scattering
Paul A. Heiney
Wave nature of the neutron. Comparison of neutrons, X-rays for diffraction. Neutron scattering cross sections. Coherent and incoherent scattering. Time 6:00.
-
7.4 - Neutron Scattering Techniques
Paul A. Heiney
Selected techniques in neutron scattering. Isotopic substitution, small angle neutron scattering, inelastic scattering, phonons, magnetic scattering. Time 7:04.
-
7.5 - Instrumentation for Neutron Scattering
Paul A. Heiney
Fission and spallation sources. Triple axis and time of flight spectrometers. Time 5:05.