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JOURNALS // Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki // Archive

Pis'ma v Zh. Èksper. Teoret. Fiz., 2018 Volume 107, Issue 8, Pages 477–480 (Mi jetpl5545)

This article is cited in 1 paper

OPTICS AND NUCLEAR PHYSICS

Emission of photons at the interaction of a high-energy electron beam with a sequence of bent single crystals

A. G. Afonin, E. V. Barnov, G. I. Britvich, A. P. Bugorskii, A. A. Durum, M. Yu. Kostin, I. S. Lobanov, A. V. Lutchev, Yu. E. Sandomirskii, V. I. Pitalev, I. V. Poluektov, S. F. Reshetnikov, Yu. A. Chesnokov, P. N. Chirkov, A. A. Yanovich

Institute for High Energy Physics, National Research Center Kurchatov Institute, Protvino, Moscow region, Russia

Abstract: A radiation source based on the emission of electrons and positrons moving in a short bent crystal has been recently discovered. The emission of particles is due to oscillations of their trajectories near the point of reflections, where trajectories approach a tangent to bent atomic planes. In the experiment performed with the secondary electron beam of the U70 accelerator, it has been shown that the emission intensity can be increased by using a sequence of oriented bent crystals. Passing through six 2.5-mm-long silicon crystals, 7-GeV electrons lose on average 2.0 GeV on emission. This value is several times larger than that in an amorphous medium. Thus, an intense source of radiation has been demonstrated with prospects of application at accelerators.

Received: 06.02.2018

DOI: 10.7868/S0370274X18080015


 English version:
Journal of Experimental and Theoretical Physics Letters, 2018, 107:8, 451–454

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