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https://doi.org/10.18429/JACoW-IBIC2020-TUPP35
Title Development of a Thermal Response Model for Wire Grid Profile Monitors and Benchmarking to CERN LINAC4 Experiments
Authors
  • A. Navarro Fernandez, F. Roncarolo
    CERN, Geneva, Switzerland
  • M. Sapinski
    GSI, Darmstadt, Germany
Abstract The operation of wire grids as beam profile monitors, both in terms of measurement accuracy and wire integrity, can be heavily affected by the thermal response of the wires to the energy deposited by the charged particles. A comprehensive model to describe such interaction has been implemented including beam induced heating, all relevant cooling processes and the various phenomena contributing to the wire signal such as secondary emission and H⁻ electron scattering. The output from this model gives a prediction of the wire signal and temperature evolution under different beam conditions. The model has been applied to the wire grids of the CERN LINAC4 160 MeV H-beam and compared to experimental measurements. This successful benchmarking allowed the model to be used to review the beam power limits for operating wire grids in LINAC4.
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Conference IBIC2020
Series International Beam Instrumentation Conference (9th)
Location Santos, Brazil
Date 14-18 September 2020
Publisher JACoW Publishing, Geneva, Switzerland
Editorial Board Daniel Tavares (LNLS, Campinas, Brazil); Renan Picoreti (LNLS, Campinas, Brazil); Gustavo Bruno (LNLS, Campinas, Brazil); Sergio Marques (LNLS, Campinas, Brazil); Volker R.W. Schaa (GSI, Darmstadt, Germany)
Online ISBN 978-3-95450-222-6
Online ISSN 2673-5350
Received 14 September 2020
Accepted 28 October 2020
Issue Date 30 October 2020
DOI doi:10.18429/JACoW-IBIC2020-TUPP35
Pages 82-85
Copyright
Creative Commons CC logoPublished by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.