WEPS039

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URL	https://doi.org/10.18429/JACoW-IPAC2025-WEPS039
Title	Progress & developments of beam delivery simulation (BDSIM)
Authors	W. Shields, A. Keyken, M. Pereira, S. Gibson Royal Holloway University of London B. Lindstrom, L. Nevay, R. Kieffer European Organization for Nuclear Research C. Rogers Science and Technology Facilities Council D. Christie Lancaster University L. Vanhecke École Polytechnique Fédérale de Lausanne M. Deniaud, S. Boogert Cockcroft Institute P. Jurj, R. Kamath Imperial College London S. Alden John Adams Institute
Abstract	BDSIM (Beam Delivery Simulation) is a Monte Carlo particle tracking tool for accelerator beamline modelling. It integrates particle transport with detailed geometry and physics using Geant4 for precise modelling of particle-matter interactions in 3D models of particle accelerators. Primarily for energy deposition studies and beam loss simulations, BDSIM allows a high degree of control and customisation, and is ideal for understanding and enhancing the performance of beamline designs. BDSIM has numerous modelling applications, including high-energy physics facilities, particle detection experiments, synchrotron light sources, medical accelerators, and novel acceleration experiments. Here, we present recent developments of BDSIM. This includes improved custom inverse-Compton scattering processes for laserwire and polarimeter simulations and extending the process to model polarization & electron spin; improved acceleration including transverse focussing in RF elements with implementation of 3D transverse magnetic and electric modes; custom elements for modelling muon cooling channels; and updates to interfacing with Xsuite via improved code couplings and BDSIM distribution methods.
Paper	download: WEPS039.pdf
Cite	BibTeX, LaTeX, Text/Word, RIS, EndNote
Conference	16th International Particle Accelerator Conference
Series
Location	Taipei, Taiwan
Date	01-06 Jun 2025
Publisher	JACoW Publishing, Geneva, Switzerland
Editorial Board	* Ming-Chyuan Lin - National Synchrotron Radiation Research Center * Yoichi Sato - KEK * Jui-Che Huang - National Synchrotron Radiation Research Center * David Button - Australian Nuclear Science and Technology Organisation * Ping-Shun Chuang - National Synchrotron Radiation Research Center
Online ISBN	978-3-95450-248-6
Online ISSN	2673-5490
Received	28 May 2025
Revised	01 June 2025
Accepted	02 June 2025
Issued	05 November 2025
DOI	10.18429/JACoW-IPAC2025-WEPS039
Pages	2325-2328
Copyright	Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.