This article is cited in 12 papers

FIELDS, PARTICLES, AND NUCLEI

Advances in the investigation of the extraction of a proton beam from the U-70 accelerator with the aid of bent single crystals

A. G. Afonin^a, V. T. Baranov^a, V. M. Biryukov^a, V. I. Kotov^a, V. A. Maisheev^a, V. I. Terekhov^a, E. F. Troyanov^a, Yu. S. Fedotov^a, V. N. Chepegin^a, Yu. A. Chesnokov^a, Yu. M. Ivanov^b, V. Guidi^c, G. Martinelli^c, M. Stefanchik^c, D. Vincenzi^c, D. Trboevich^d, V. Skandale^e, M. B. H. Breese<sup>f

a</sup> Institute for High Energy Physics, Protvino, Moskovskaya obl.
^b B. P. Konstantinov Petersburg Nuclear Physics Institute, Russian Academy of Sciences
^c Ferrara University
^d Brookhaven National Laboratory
^e CERN
^f Surrey University

Abstract: The efficiency of the extraction of a beam from an accelerator is radically improved owing to the application of short crystals of length up to $1.8$ mm bent through a small angle of about $1$ mrad. This success is due to an increase in the multiplicity of particle transmission through the crystal used. A record efficiency of the extraction of $70$ GeV protons in excess of $80\%$ is achieved experimentally, this result being in agreement with theoretical predictions. It is shown that the crystal can efficiently operate at the injection energy of $1.3$ GeV.

PACS: 29.27.Ac

Received: 30.05.2001

 English version: Journal of Experimental and Theoretical Physics Letters, 2001, 74:1, 55–58

Bibliographic databases:

•