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

Authors
Afonin, AG Baranov, VT Biryukov, VM Kotov, VI Maisheev, VA Terekhov, VI Troyanov, EF Fedotov, YS Chepegin, VN Chesnokov, YA Ivanov, YM Guidi, V Martinelli, G Stefanchik, M Vincenzi, D Trboevich, D Scandale, V Breese, MBH
Citation
Ag. Afonin et al., Advances in the investigation of the extraction of a proton beam from the U-70 accelerator with the aid of bent single crystals, JETP LETTER, 74(1), 2001, pp. 55-58
Citations number
11
Categorie Soggetti
Physics
Journal title
JETP LETTERS
ISSN journal
00213640 → ACNP
Volume
74
Issue
1
Year of publication
2001
Pages
55 - 58
Database
ISI
SICI code
0021-3640(2001)74:1<55:AITIOT>2.0.ZU;2-K
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 incr ease in the multiplicity of particle transmission through the crystal used. A record efficiency of the extraction of 70-GeV protons in excess of 80% i s achieved experimentally, this result being in agreement with theoretical predictions. It is shown that the crystal can efficiently operate at the in jection energy of 1.3 GeV. (C) 2001 MAIK "Nauka/Interperiodica".