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@INPROCEEDINGS{Ziegler:364087,
author = {Ziegler, Philipp and Lechner, Anton and Lindstrom, Bjorn
and Wiesner, Christoph and Hernalsteens, Cédric and Valuch,
Daniel and Wollmann, Daniel and Gancarcik, David and Calvo
Giraldo, Eva and Sterbini, Guido and Podlech, Holger and
Gonzalez Berges, Manuel and Hostettler, Michi and Belanger,
Philippe and Schmidt, Ruediger and Kostoglou, Sofia and
Coco, Victor and Buffat, Xavier},
title = {{P}roof-of-principle experiment to reconstruct the
trajectory of dust grains interacting with the {LHC} beams},
publisher = {JACoW Publishing},
reportid = {GSI-2026-00266},
pages = {330-333},
year = {2025},
note = {Published by JACoW Publishing under the terms of the
Creative Commons Attribution 4.0 license. This work has been
sponsored by the Wolfgang Gentner Programme of the German
Federal Ministry of Education and Research (grant no.
13E18CHA).},
abstract = {Interactions of dust grains with the LHC beams cause beam
losses that can trigger premature beam aborts or even
quenches of superconducting dipoles. While the simulated
motion and ionisation of dust grains inside the proton beam
are in good agreement with measured beam-loss data, a direct
measurement of the dust movement is not available. A novel
method was developed that reconstructs the trajectory of a
dust grain based on the different beam loss profiles of
transversely displaced bunches. A proof-of-principle
experiment to validate the method using a thin wire to
simulate the dust grain was performed in June 2024 at the
LHC. This paper describes the beam experiment, compares the
achieved displacements with simulations, and shows the
reconstructed trajectories. Finally, it is discussed how the
method can be applied for real dust events occurring during
LHC operation.},
month = {Jun},
date = {2025-06-01},
organization = {16th International Particle
Accelerator Conference, Taipei
(Taiwan), 1 Jun 2025 - 6 Jun 2025},
keywords = {Accelerator Physics (Other) /
mc1-colliders-and-related-accelerators - MC1 :Colliders and
Related Accelerators (Other) / MC1.A01 - MC1.A01 Hadron
Colliders (Other)},
cin = {FHF},
cid = {I:(DE-Ds200)FHF-20200605OR451},
pnm = {621 - Accelerator Research and Development (POF4-621) /
Accelerator physics (HFHF project) (I:(DE-Ds200)HFHF-ACC) /
SUC-GSI-Frankfurt - Strategic university cooperation GSI-U
Frankfurt/M (SUC-GSI-FR)},
pid = {G:(DE-HGF)POF4-621 / I:(DE-Ds200)HFHF-ACC /
G:(DE-Ds200)SUC-GSI-FR},
experiment = {$EXP:(DE-Ds200)no_experiment-20200803$},
typ = {PUB:(DE-HGF)8},
doi = {10.18429/JACOW-IPAC2025-MOPM021},
url = {https://repository.gsi.de/record/364087},
}