IPAC'23 - Student Poster Session Guide

IPAC’23 / STUDENT POSTER SESSION GUIDE 13 Student Poster Session SUPM012 Impedance-induced beam observables in the CERN Proton Synchrotron Sébastien Joly (European Organization for Nuclear Research) . Benoit Salvant, Gil Imesch, Marc Delrieux, Nicolas Mounet, Nicolo Biancacci (European Organization for Nuclear Research), Mauro Migliorati (Istituto Nazionale di Fisica Nucleare - Sez. Roma 1). Impedance-induced tune shifts and instability growth rates in the CERN Proton Synchrotron are studied thanks to the recently updated impedance model of the machine. These beam observables are calculated using both Vlasov solvers and macroparticle tracking simulations, and the results are compared with the values measured during dedicated campaigns. Thanks to improvements in the measurement procedure, including the careful monitoring of losses, bunch length, linear coupling and chromaticity, uncertainties on the tune shifts were noticeably reduced compared to previous studies. Moreover, impedance localisation measurements were carried out, using the phase advance between various BPMs around the ring. Finally, the effect of linear chromaticity on tune shift slopes and growth rates has been examined, allowing for a detailed comparison with both past measurements and simulations. SUPM013 Benchmark and performance of beam-beam interaction models for XSUITE Peter Kicsiny (European Organization for Nuclear Research) . Daniel Schulte, Tatiana Pieloni, Xavier Buffat (European Organization for Nuclear Research), Giovan- ni Iadarola (Naples University Federico II), Mike Seidel (Paul Scherrer Institut). The understanding of beam-beam effects, which infuence the choice of the FCC-ee design pa- rameters in several aspects, require sophisticated and high-performance numerical simula- tions. The self-consistent study of the interplay of several nonlinear dynamical phenomena resulting from collisions in the machine is key to accurately assess its potential performance. Although current simulation frameworks can address specific aspects of the dynamics sepa- rately, they are difficult to interface with each other for more complex studies. To address this challenge, Xsuite, a new general purpose software framework for beam dynamics simulations, is currently under development. We discuss the implementation of the beam-beam interaction in this new toolkit and the evaluation of its performance on multiple platforms. SUPM014 Radiation levels produced by the operation of beam-gas detectors in the LHC tunnel Daniel Prelipcean (European Organization for Nuclear Research) . Bernadette Kolbinger, Giuseppe Lerner, Helene Guerin, James Storey, Kacper Bilko, Ruben Garcia Alia (European Organization for Nuclear Research), Roberto Kersevan (CERN). The Large Hadron Collider (LHC) at CERN is equipped with instruments that exploit collisions between beam particles and gas targets, such as the Beam Gas Vertex (BGV) or the Beam Gas