A5061711836- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Particle accelerators and beam dynamics
- Particle Detector Development and Performance
- Distributed and Parallel Computing Systems
- Advanced Differential Equations and Dynamical Systems
- Quantum chaos and dynamical systems
- Gyrotron and Vacuum Electronics Research
- Nonlinear Waves and Solitons
- Magnetic confinement fusion research
- Particle physics theoretical and experimental studies
- Molecular spectroscopy and chirality
- Magnetic Properties and Applications
- Astronomical Observations and Instrumentation
- Laser-Plasma Interactions and Diagnostics
- Relativity and Gravitational Theory
- Mathematical and Computational Methods
- Nonlinear Dynamics and Pattern Formation
- Electromagnetic Simulation and Numerical Methods
- Advanced X-ray Imaging Techniques
- Scientific Computing and Data Management
- Advanced Data Storage Technologies
- Magnetic properties of thin films
- Radiation Therapy and Dosimetry
- Astro and Planetary Science
TRIUMF
1999-2023
European Organization for Nuclear Research
2021
University of Crete
2021
Joint Institute for Nuclear Research
1993-2002
Dubna State University
2002
Universities UK
2002
Abstract The LHC@Home BOINC project has provided computing capacity for numerical simulations to researchers at CERN since 2004, and 2011 been expanded with a wider range of applications. traditional accelerator physics simulation code SixTrack enjoys continuing volunteers support, thanks virtualisation number applications from the LHC experiment collaborations particle theory groups have joined consolidated project. This paper addresses challenges related virtualized in environment, how...
Abstract Measuring neutron capture cross sections of radioactive nuclei is a crucial step towards better understanding the origin elements heavier than iron. For decades, precise measurement direct in “stellar” energy range (eV up to few MeV) was limited stable and longer-lived that could be provided as physical samples then irradiated with neutrons. New experimental methods are now being developed extend these measurements shorter-lived ( $$t_{1/2}<$$ <mml:math...
ARIEL is the new TRIUMF facility for production of radioactive ion beams that will enable delivery three simultaneous RIB to ISAC experimental stations. Two additional target stations produce by using either a 50 kW proton or from 500 electrons via photofission. The electron beam driver going be MeV 10 mA CW superconducting linac. first stage e-linac installation completed and commissioning underway. paper present design characteristics, installation, strategy current results.
We report on the experience with long-range beam--beam effects in LHC, dedicated studies as well from operation. Where possible, we compare observations expectations.
The Large Hadron Collider (LHC) will collide proton beams at 14 TeV c.m. with unprecedented stored intensities. transverse energy density in the beam be about three orders of magnitude larger than previously handled Tevatron or HERA, if compared locations betatron collimators. In particular, population halo is much above quench level superconducting magnets. Two LHC insertions are dedicated to collimation design goals preventing magnet quenches regular operation and damage accelerator...
We find that the observed dependencies (scaling) of long-range beam-beam effects on beam separation and intensity are consistent with simple assumption that, all other parameters being same, quantity preserved during different set-ups is first-order smear as a function amplitude.
The Enge function can be used to parametrize any element with well-defined edges. If an is too short, however, there no unambiguous definition of the effective edge. We first demonstrate that very little fringe field detail needed obtain accurate maps even up fifth order. Then we go on show a simple fitting algorithm works well for short as long quadrupoles. results are true whether quads magnetic or electrostatic.
Several configurations of the High Luminosity Large Hadron Collider, whose performance at collision is mainly limited due to strong beam-beam long-range interactions, are studied in presence dc wire compensators. This analysis based on analytical and numerical calculations where main observables dynamic aperture (correlated beam lifetime) frequency map analysis. It demonstrated that, with a proper optimization compensator parameters (distance from current) without violating machine...
The collimation system of LHC will consist flat collimator jaws distributed along the IR7 lattice with aim limiting maximum combined amplitudes secondary halo particles (born edges primary collimators). code DJ (Distribution Jaws) computes this amplitude using a quasi-analytic algorithm (no tracking), by which initial angles are found, corresponding to trajectories escaping all jaws. We report latest version DJ, contains following enhancements: (1) orientation each pair is free variable...
Abstract The Lie Algebra package LieMath, written in the Mathematica language, constructs one-turn nonlinear map for a given lattice of optical elements. method used is BCH-based concatenation. Truncated power series algebra (TPSA) techniques have been implemented to compute Poisson bracket and extract faster than when one relies on symbolic capabilities operate truncated multivariate Taylor series. In addition, this makes possible obtaining parameter-dependent numerical maps optimization...
The compensation of the long-range beam-beam interactions using DC wires is presently under study as an option for enhancing machine performance in frame High-Luminosity LHC project (HL-LHC). original idea dates back more than 15 years. After installation four wire prototypes 2018, a successful experimental campaign was performed during last months. setup and main results are reported this paper.