Laurence Nevay

Beam splitting in CERN North Area transfer lines on the SFTPRO cycle

A. A. Gorn, Dipanwita Banerjee, Johannes Bernhard Agricola, M A Fraser et autres

This note describes SFTPRO beam parameters at the CERN North Area targets for typical user sharing ratios.

Simulation framework and measurements of crystal collimation of proton beams at the Large Hadron Collider

R. Cai, Roderik Bruce, Marco D’Andrea, Luigi Salvatore Esposito et autres

Thanks to its versatility in deploying large kicks with high efficiency, crystal channeling is being integrated more and more into modern particle accelerators. For example, at the CERN Large Hadron Collider, crystals are used, or planned to be used for collimation and …

ch, fr (code pays fourni par la source)

New optics design of the Cherenkov threshold detectors at CERN

Jan Buesa Orgaz, Martin Schwinzerl, J. Bernhard, Markus Brugger et autres

The performance of the Cherenkov threshold detectors (XCET) used in the secondary beam areas (SBA) at CERN is limited by their built-in optics. This study showcases an improved design using compound parabolic concentrators (CPCs) to reduce size and cost of the optics …

ch (code pays fourni par la source)

The Forward Physics Facility at the High-Luminosity LHC

Jonathan Lee Feng, Felix Kling, Mary Hall Reno, Juan Rojo et autres

Abstract High energy collisions at the High-Luminosity Large Hadron Collider (LHC) produce a large number of particles along the beam collision axis, outside of the acceptance of existing LHC experiments. The proposed Forward Physics Facility (FPF), to be located several hundred meters …

Optimization of proton therapy eye-treatment systems toward improved clinical performances

Eustache Gnacadja, Cédric Hernalsteens, Stewart Boogert, Quentin Flandroy et autres

The treatment protocols of cancerous ocular diseases with proton therapy are well established, and dedicated eye-treatment systems can produce the clinical beam properties that meet the peculiar features required by eye-treatment modalities. However, for general-purpose multiroom systems comprising eye-treatment beamlines and nozzles, …

be, ch, gb (code pays fourni par la source)

Development of Collimation Simulations for the FCC-ee

Andrey Abramov, Roderik Bruce, Felix Carlier, Michael Höfer et autres

A collimation system is under study for the FCC-ee to protect the machine from the multi-MJ electron and positron beams and limit the backgrounds to the detectors. One of the key aspects of the collimation system design is the setup of simulation …

ch, fr (code pays fourni par la source)

Studies for the K12 High-Intensity Kaon Beam at CERN

Gian Luigi D’Alessandro, D. Banerjee, J. Bernhard, Stewart Boogert et autres

The NA62 experiment is a fixed target experiment located in the North Area of CERN and has as main goal the measurement of the branching ratio of the rare decay K±>pi+vv. The primary proton beam from the SPS accelerator interacts with the …

ch (code pays fourni par la source)

Recent BDSIM Related Developments and Modeling of Accelerators

Laurence Nevay, Andrey Abramov, Siobhan Alden, Stewart Boogert et autres

Beam Delivery Simulation (BDSIM) is a program based on Geant4 that creates 3D radiation transport models of accelerators from a simple optical description in a vastly reduced time frame with great flexibility. It also uses ROOT and CLHEP to create a single …

be (code pays fourni par la source)

BDSIM Developments for Hadron Therapy Centre Applications

Eliott Ramoisiaux, Stewart Boogert, Eustache Gnacadja, Cédric Hernalsteens et autres

Hadron therapy centres are evolving towards reduced-footprint layouts, often featuring a single treatment room. The evaluation of beam properties, radiation protection quantities, and concrete shielding activation via numerical simulations poses new challenges that can be tackled using the numerical beam transport and …

be, gb (code pays fourni par la source)

Crystal Collimation of 20 MJ Heavy-Ion Beams at the HL-LHC

Marco D’Andrea, Roderik Bruce, Mario Di Castro, F. Galluccio et autres

The concept of crystal collimation at the Large Hadron Collider (LHC) relies on the use of bent crystals that can deflect halo particles by a much larger angle than the standard multi-stage collimation system. Following an extensive campaign of studies and performance …

ch, it, gb (code pays fourni par la source)

Gamma Factory for CERN initiative - progress report

Yann Dutheil, A. Abramov, Siobhan Alden, Reyes Alemany Fernandez et autres

The Gamma Factory (GF) initiative proposes to use partially stripped ion (PSI) beams as drivers of a new type of high-intensity and high-energy (0.1–400 MeV) photon source. As part of the ongoing Physics Beyond Collider studies, initial beam tests were carried out …

us, ch, gb, ru, am, de, fr, it, pl, mt (code pays fourni par la source)

PYG4OMETRY: a Python library for the creation of Monte Carlo radiation transport physical geometries

Stewart Boogert, A. Abramov, Laurence Nevay, William F. Shields et autres

Creating and maintaining computer readable geometries for use in Monte Carlo Radiation Transport (MCRT) simulations is an error-prone and time-consuming task. Simulating a system often requires geometry from different sources and modelling environments, including a range of MCRT codes and computer-aided design …

gb (code pays fourni par la source)