Parametric beam instability of the electron bunch in a crystal

Aleksandr Leonov; Andrei Benediktovitch; Dmitriy Ksenzov; Ilya Feranchuk; Ullrich Pietsch

doi:10.1117/12.2021262

3 May 2013 Parametric beam instability of the electron bunch in a crystal

Aleksandr Leonov, Andrei Benediktovitch, Dmitriy Ksenzov, Ilya Feranchuk, Ullrich Pietsch

Proceedings Volume 8778, Advances in X-ray Free-Electron Lasers II: Instrumentation; 877816 (2013) https://doi.org/10.1117/12.2021262
Event: SPIE Optics + Optoelectronics, 2013, Prague, Czech Republic

Abstract

Effect of the parametric beam instability (PBI) of the relativistic electron beam in a crystal was analyzed theoretically in¹ (see also²). This effect is analogous to self-amplification of spontaneous emission (SASE) mechanism for X-ray Free Electron Laser (XFEL) with an undulator. However, in the case of PBI the transversal modulation of the beam is defined by channeling of the electron in a crystal and the longitudinal modulation arises because of the parametric X-ray radiation mechanism. It is shown in the present paper that the current density J in the electron bunch typical for FEL facility is enough for the beam self-modulation within the X-ray range if the crystal thickness is larger than the crystal absorption length L ≥ L_abs. This process could be used for generation of the coherent X-ray pulses if the time τ_d of the crystal destruction affected by the electron bunch is less than its passing time τ_d< L=c. The value τ_d(J) is estimated for the case of the FLASH electron bunch propagating through a Si crystal.

Citation Download Citation

Aleksandr Leonov, Andrei Benediktovitch, Dmitriy Ksenzov, Ilya Feranchuk, and Ullrich Pietsch "Parametric beam instability of the electron bunch in a crystal", Proc. SPIE 8778, Advances in X-ray Free-Electron Lasers II: Instrumentation, 877816 (3 May 2013); https://doi.org/10.1117/12.2021262

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available