Abstract
The spontaneous emission process, which is kinematically forbidden in vacuum, may occur for kilovolt electrons traversing thin crystals as a direct result of the dynamical diffraction process which Paul Ewald was amongst the first to understand. The history of this effect is briefly reviewed. New experimental results, and the relevant theoretical background, are given for the resulting monochromatic X-ray emission lines known as coherent Bremsstrahlung and channelling radiation. The fine structure of these lines in particular is discussed, and their effects on electron energy-loss spectra described.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Acta Crystallographica Section A Foundations of Crystallography
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
