Beam steering performance of bent silicon crystals irradiated with high-intensity and high-energy protons

Autor: W. Scandale, M. Calviani, M. D’Andrea, L. S. Esposito, M. Garattini, S. Gilardoni, S. Montesano, A. Natochii, R. Rossi, G. I. Smirnov, C. L. Torregrosa Martin, V. Zhovkovska, E. Bagli, L. Bandiera, V. Guidi, A. Mazzolari, M. Romagnoni, F. Murtas, F. Galluccio, F. Addesa, F. Iacoangeli, A. D. Kovalenko, A. M. Taratin, Yu. A. Gavrikov, Yu. M. Ivanov, M. A. Koznov, M. V. Malkov, L. G. Malyarenko, I. G. Mamunct, J. Borg, T. James, G. Hall, M. Pesaresi
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: European Physical Journal C: Particles and Fields, Vol 79, Iss 11, Pp 1-5 (2019)
Druh dokumentu: article
ISSN: 1434-6044
1434-6052
DOI: 10.1140/epjc/s10052-019-7448-2
Popis: Abstract Beam steering performance of bent silicon crystals irradiated with high-intensity and high-energy protons has been studied. In particular, crystals of the type used for collimation and extraction purposes in the Large Hadron Collider and the Super Proton Synchrotron at CERN have been irradiated at the HiRadMat CERN facility with $$2.5 \times 10^{13}$$ 2.5×1013 440 GeV/c protons, with a pulse length of 7.2 $$\upmu $$ μ s. The purpose is to study possible changes in bending angle and channeling efficiency due to thermo-mechanical stresses in case of accidental irradiation during accelerator operations. A comparison between measurements performed before and after the irradiation does not show any appreciable performance reduction in either crystal.
Databáze: Directory of Open Access Journals
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