Study of inelastic nuclear interactions of 400 GeV/c protons in bent silicon crystals for beam steering purposes
| Autor: | Daniele Mirarchi, Laura Bandiera, Francesco Iacoangeli, F. Andrisani, Gianluigi Arduini, A. S. Desinov, D. Chaumat, F. Murtas, G. Cavoto, Mark Pesaresi, G. Germogli, F. Cerutti, Andrea Mazzolari, Alexander M. Taratin, D. Breton, A. Masi, Vincenzo Guidi, Yu. M. Ivanov, Vyacheslav V. Skorobogatov, Stefano Redaelli, J. Maalmi, M. Garattini, Yu. A. Chesnokov, Thomas James, Jonathan Fulcher, P. Schoofs, Alexander Kovalenko, Michel Raymond, A.A. Yanovich, Simone Gilardoni, A. Stocchi, A. Natochii, S. Montesano, Enrico Bagli, A.A. Durum, Yu.E. Sandomirskiy, W. Scandale, F. Addesa, F. Galluccio, S. Petrucci, Roberto Rossi, A. G. Afonin, L.G. Malyarenko, V. Puill, Geoffrey Hall, S. Dubos, V. A. Maisheev, L.P. Lapina, George Smirnov, Yu.A. Gavrikov |
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| Přispěvatelé: | Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Nuclear reaction
Physics and Astronomy (miscellaneous) Bent molecular geometry 01 natural sciences Physics Particles & Fields Crystal Monocrystalline silicon Planar Engineering (miscellaneous) channeling bent crystals beam position nucleus: interaction Physics collimator alignment p: beam p: interaction Nuclear & Particles Physics PROBABILITY CERN LHC Coll CHARGED-PARTICLES DEFLECTION curvature Physical Sciences Atomic physics EXTRACTION COLLISIONS CERN Lab Silicon Regular Article - Experimental Physics silicon: crystal chemistry.chemical_element lcsh:Astrophysics HIGH-ENERGY PROTONS [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] Curvature Computer Science::Digital Libraries NO 0202 Atomic Molecular Nuclear Particle And Plasma Physics 0103 physical sciences lcsh:QB460-466 Nuclear Physics - Experiment lcsh:Nuclear and particle physics. Atomic energy. Radioactivity 010306 general physics 0206 Quantum Physics GEANT4 Science & Technology 010308 nuclear & particles physics Scattering scattering channeling: axial COLLIMATION chemistry correlation lcsh:QC770-798 Physics::Accelerator Physics experimental results |
| Zdroj: | European Physical Journal C: Particles and Fields, Vol 78, Iss 6, Pp 1-8 (2018) The European Physical Journal. C, Particles and Fields Eur.Phys.J.C Eur.Phys.J.C, 2018, 78 (6), pp.505. ⟨10.1140/epjc/s10052-018-5985-8⟩ European Physical Journal |
| DOI: | 10.1140/epjc/s10052-018-5985-8⟩ |
| Popis: | Inelastic nuclear interaction probability of 400 GeV/c protons interacting with bent silicon crystals was investigated, in particular for both types of crystals installed at the CERN Large Hadron Collider for beam collimation purposes. In comparison to amorphous scattering interaction, in planar channeling this probability is \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\sim 36\%$$\end{document}∼36% for the quasi-mosaic type (planes (111)), and \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\sim 27\%$$\end{document}∼27% for the strip type (planes (110)). Moreover, the absolute inelastic nuclear interaction probability in the axial channeling orientation, along the \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\langle 110\rangle $$\end{document}⟨110⟩ axis, was estimated for the first time, finding a value of \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$0.6\%$$\end{document}0.6% for a crystal 2 mm long along the beam direction, with a bending angle of 55 \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\upmu $$\end{document}μrad. This value is more than two times lower with respect to the planar channeling orientation of the same crystal, and increases with the vertical angular misalignment. Finally, the correlation between the inelastic nuclear interaction probability in the planar channeling and the silicon crystal curvature is reported. |
| Databáze: | OpenAIRE |
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