Crystal-Assisted Beam Extraction and Collimation at the U-70 Circular Accelerator

Crystal-Assisted Beam Extraction and Collimation at the U-70 Circular Accelerator

New crystal technique - array of bent strips and a fan-type reflector, based on thin straight plates - have been used for research of extraction and collimation a circulating beam in the U-70 accelerator at the energy 50 GeV and 1.3 GeV. It is shown, that new devices can effectively steer a beam in...

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Veröffentlicht in:arXiv.org 2011-02
Hauptverfasser: Afonin, A G, Baranov, V T, Bellucci, S, Belov, S A, Bini, S, Gorlov, V N, Giannini, G, Ermolaev, A D, Ivanova, I V, Krylov, D M, Maisheev, V A, Savin, D A, Syshchikov, E A, Terekhov, V I, Chepegin, V N, Chesnokov, Yu A, Chirkov, P N, Yazynin, I A
Format: Artikel
Sprache:eng
Schlagworte:
Collimation
Crystals
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Zusammenfassung:New crystal technique - array of bent strips and a fan-type reflector, based on thin straight plates - have been used for research of extraction and collimation a circulating beam in the U-70 accelerator at the energy 50 GeV and 1.3 GeV. It is shown, that new devices can effectively steer a beam in a wide energy range. For protons with energy 50 GeV efficiency of extraction and collimation about 90 % has been achieved which is record for this method. Reduction of particle losses in 2-3 times was observed also in accelerator at application of different crystals in comparison with the usual one-stage collimation scheme of beam with a steel absorber.
ISSN:2331-8422