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

Scandale, W.; Calviani, M.; D’Andrea, M.; Esposito, L. S.; Garattini, M.; Gilardoni, S.; Natochii, A.; Rossi, Roberto; Smirnov, G.I.; Martin, Claudio Leopoldo Torregrosa; Zhovkovska, Valeriia; Bagli, E.; Bandiera, L.; Guidi, V.; Mazzolari, A.; Romagnoni, M.; Murtas, F.; Galluccio, F.; Addesa, F. M.; Iacoangeli, F.; Kovalenko, A. D.; Taratin, A.M.; Gavrikov, Yu.A.; Ivanov, Yu. M.; Koznov, M.A.; Malkov, M.V.; Malyarenko, L.G.; Mamunct, I.G.; Borg, J.; James, T.; Hall, G.; Pesaresi, M.

doi:10.1140/epjc/s10052-019-7448-2

Cited by 4 publications

(1 citation statement)

References 14 publications

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“…Recently, further tests to evaluate the robustness of silicon crystals in case of accidental fast irradiation during machine operations have been performed by UA9 at the CERN HiRadMat facility [25][26][27]. These crystals are of the same type used for LHC collimation and SPS extraction and they have been irradiated, bent by the same holder used for accelerator operations, with the same proton beam extracted from the SPS or used to fill the LHC (2.5 × 10 13 440 GeV/c protons, with a pulse length of 7.2 μs.).…”

Section: Discussionmentioning

confidence: 99%

Channeling efficiency reduction in high dose neutron irradiated silicon crystals for high energy and high intensity beam collimation and extraction

Scandale¹,

D’Andrea²,

Esposito³

et al. 2021

J. Inst.

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A: The channeling process in bent silicon crystals are used since '70s to manipulate beams of high energy particles. During the last decade, several studies and experiments carried out by the UA9 Collaboration at CERN demonstrated the possibility to use bent crystals for beam collimation, extraction, focusing and splitting in particle accelerators. These crystals are subject to deterioration due to the interaction of the particles with the crystal lattice, degrading the beam steering performance. For this reason, robustness tests are crucial to estimate their reliability and operational lifetime. A ∼ 8% of reduction in channeling efficiency on crystals irradiated with 2.5 • 10 21 /cm 2 thermal neutrons was measured and reported in this manuscript. Extrapolations to possible operational scenarios in high energy accelerators are also discussed.

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Section: Discussionmentioning

confidence: 99%

Channeling efficiency reduction in high dose neutron irradiated silicon crystals for high energy and high intensity beam collimation and extraction

Scandale¹,

D’Andrea²,

Esposito³

et al. 2021

J. Inst.

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Crystal slow extraction of positrons from the Frascati DA Φ NE collider

Garattini

Annucci

Blanco-García

et al. 2022

Phys. Rev. Accel. Beams

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Silicon crystals for steering high-intensity particle beams at ultrahigh-energy accelerators

Mazzolari

Romagnoni

Bagli

et al. 2021

Phys. Rev. Research

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Experimental results and simulation models show that crystals might play a relevant role for the development of new generations of high-energy and high-intensity particle accelerators and might disclose innovative possibilities at existing ones. In this paper we describe the most advanced manufacturing techniques of crystals suitable for operations at ultra-high energy and ultra-high intensity particle accelerators, reporting as an example of potential applications the collimation of the particle beams circulating in the Large Hadron Collider at CERN, which will be upgraded through the addition of bent crystals in the frame of the High Luminosity Large Hadron Collider project.

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

Cited by 4 publications

References 14 publications

Channeling efficiency reduction in high dose neutron irradiated silicon crystals for high energy and high intensity beam collimation and extraction

Channeling efficiency reduction in high dose neutron irradiated silicon crystals for high energy and high intensity beam collimation and extraction

Crystal slow extraction of positrons from the Frascati DA Φ NE collider

Silicon crystals for steering high-intensity particle beams at ultrahigh-energy accelerators

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