English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Parametric X-ray radiation in the Smith-Purcell geometry fornon-destructive beam diagnostics

MPS-Authors
/persons/resource/persons37691

Skoromnik,  O. D.
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society,;

External Resource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Skoromnik, O. D., Feranchuk, I. D., & Lu, D. V. (2019). Parametric X-ray radiation in the Smith-Purcell geometry fornon-destructive beam diagnostics. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 444, 125-134. doi:10.1016/j.nimb.2019.01.003.


Cite as: http://hdl.handle.net/21.11116/0000-0005-4C5B-1
Abstract
We investigate parametric X-ray radiation (PXR) under condition of the extremely asymmetric diffraction, when the ultra-relativistic electron bunch is moving in vacuum parallel to the crystal-vacuum interface, close to the crystal surface. This type of geometry coincides with the well known mechanism of generation of radiation, when the self-field of the particle beam interacts with the reflecting metal grating, namely the Smith-Purcell effect. We demonstrate that in this geometry the main contribution is given via a tail region of the beam distribution, which penetrates the crystal and X-rays are radiated along the normal to the crystal surface. We determine the electron beam characteristics, when this phenomenon can be observed. It is essential that in this geometry the majority of electrons does not undergo multiple scattering and consequently the characteristics of the particle beam are not changed, thus allowing the usage of the emitted X-rays for the purpose of non-destructive beam diagnostics, which can complement the traditional knife-edge method.