• Open Access

Mechanical and thermal design of the target neutral beam absorber for the High-Luminosity LHC upgrade

P. Santos Díaz, F. Sanchez Galan, R. De Maria, E. Kepes, P. Steinberg, R. Longo, S. Mazzoni, F. Cerutti, M. Sabate Gilarte, A. Infantino, B. Salvant, M. Murray, O. Boettcher, J. Hansen, V. Baglin, N. Zelko, E. Bravin, H. Mainaud, P. Bestmann, A. Herty, P. Fessia, and M. Gonzalez de la Aleja Cabana
Phys. Rev. Accel. Beams 25, 053001 – Published 13 May 2022

Abstract

The High-Luminosity target neutral beam absorber (TAXN) is the radiation absorber of the neutral particle debris generated at the beam collisions carried out in the ATLAS and CMS detectors at the Large Hadron Collider (LHC). The new absorber will protect the superconducting magnets from this radiation to prevent their quenching at a design luminosity of 7.5×1034cm2s1. This article describes the mechanical design of the TAXN assembly and the recombination chamber together with the thermal computations performed for the water-cooling and bakeout system prepared for the engineering design review held in January, 2021. It takes into account the internal integration of the zero degree calorimeter and beam rate of neutrals luminosity detector as well as their physics case overview. In addition, it provides the beam aperture breakdown and the heat deposition expected in the absorber.

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  • Received 8 April 2022
  • Accepted 25 April 2022

DOI:https://doi.org/10.1103/PhysRevAccelBeams.25.053001

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Accelerators & Beams

Authors & Affiliations

P. Santos Díaz1,*, F. Sanchez Galan2, R. De Maria2, E. Kepes3, P. Steinberg4, R. Longo5, S. Mazzoni2, F. Cerutti2, M. Sabate Gilarte6, A. Infantino2, B. Salvant2, M. Murray7, O. Boettcher2, J. Hansen2, V. Baglin2, N. Zelko2, E. Bravin2, H. Mainaud2, P. Bestmann2, A. Herty2, P. Fessia2, and M. Gonzalez de la Aleja Cabana2

  • 1National University of Science and Technology “MISIS”, 119049 Moscow, Russia
  • 2CERN, 1211 Geneva, Switzerland
  • 3CEITEC—Central European Institute of Technology, 61600 Brno, Czech Republic
  • 4Brookhaven National Laboratory, 11973 Upton, New York, USA
  • 5University of Illinois at Urbana Champaign, Champaign, 61820 Illinois, USA
  • 6University of Seville, 41004 Seville, Spain
  • 7University of Kansas, Lawrence, 66045 Kansas, USA

  • *pablo.santos.diaz@cern.ch

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Issue

Vol. 25, Iss. 5 — May 2022

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