Kinetics of relativistic electrons passing through quasi-periodic fields

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:402

Article; Proceedings Paper

Bulyak, Eugene¹  Shul'ga, Nikolay^1,2 

[1] NSC K1PT, 1 Acad Skaya Str, UA-61108 Kharkov, Ukraine

[2] Karazin Natl Univ, 31 Kurchatov Av, UA-61108 Kharkov, Ukraine

关键词: X- and gamma radiation;    Undulator;    Compton source;    Periodic field;   

DOI  :  10.1016/j.nimb.2017.02.091

来源: Elsevier

【 摘 要 】

We report a novel method for evaluating the energy spectrum of electrons emitting hard X-rays and gamma-rays in undulators and Compton sources. The method takes into account the quantum nature of recoils undergone by the electrons emitting high energy photons. The method is susceptible to evaluate a spectrum of electrons for the whole range of the emission rates per electron-pass through of the driving force, from much less than one emitted photon on average (Compton sources and short undulators) to many emitted photons (long undulators, relatively low-energy electrons). As shown in the former limiting case, the spectrum of electrons reflects the spectrum of emitted radiation whereas it is close to the Gaussian shape in the latter case. Limitation of coherency for the sources of high-energy electromagnetic radiation caused by recoils from emitted photons is also discussed. (C) 2017 Elsevier B.V. All rights reserved.

【 授权许可】

Free