Results 21 to 30 of about 2,988,636 (351)

Beam-Beam Simulations for Double-Gaussian Beams [PDF]

open access: yesProceedings of the 2005 Particle Accelerator Conference, 2006
Electron cooling together with intra-beam scattering results in a transverse distribution that can best be described by a sum of two gaussians, one for the high-density core and one for the tails of the distribution [1]. Simulation studies are being performed to understand the beam-beam interaction of these double-gaussian beams.
Montag, C.   +3 more
openaire   +1 more source

Methodology paper: a novel phantom setup for commissioning of scanned ion beam delivery and TPS

open access: yesRadiation Oncology, 2019
Background Commissioning of treatment planning systems (TPS) and beam delivery for scanned light ion beams is an important quality assurance task. This requires measurement of large sets of high quality dosimetric data in anthropomorphic phantoms to ...
O. Jäkel   +6 more
doaj   +1 more source

Treatment outcomes of proton or carbon ion therapy for skull base chordoma: a retrospective study

open access: yesRadiation Oncology, 2018
Background The usefulness of particle therapy for skull base chordoma has not been established. The aim of this retrospective study was to analyse the treatment outcomes of proton therapy (PT) and carbon ion therapy (CIT) in patients with skull base ...
Masaru Takagi   +14 more
doaj   +1 more source

About the nonlinear vibration equation of the beam

open access: yesVietnam Journal of Mechanics, 2023
In this paper, we present the establishment the vibration equation for the study of nonlinear beam effects. A illustrative example allows us to derive equations und use nonlinear vibration for calculating vibration of beams.
Nguyen Van Khang   +3 more
doaj   +1 more source

Beam-beam effects

open access: yesAIP Conference Proceedings, 1995
A review of the beam‐beam effects in storage rings is given with emphasis on experimental results and new simulation techniques.
openaire   +2 more sources

Beam-beam effects in RHIC [PDF]

open access: yes, 2012
In this article we review the beam-beam effects in the polarized proton runs in the Relativistic Heavy Ion Collider (RHIC). The operational observations, limitations, and the next luminosity goal are presented and discussed. With an upgraded polarized proton source, the proton bunch intensity will be increased from 1.7 × 10 up to 3.0 × 10.
Y., Luo   +4 more
openaire   +4 more sources

Beam-beam instability [PDF]

open access: yes, 1983
The subject of beam-beam instability has been studied since the invention of the colliding beam storage rings. Today, with several colliding beam storage rings in operation, it is not yet fully understood and remains an outstanding problem for the storage ring designers.
openaire   +2 more sources

Buckling optimization of multi segment column with variable section (Variable slope) [PDF]

open access: yesمجله مدل سازی در مهندسی, 2007
    Abstract   In this study optimization problem of multi-segment column with uniform (constant) and variable section is investigated. Design variables defined to be the radius of gyration and length of each segment.
علی قدوسیان, رسول فرجی
doaj   +1 more source

The Approximate Solution of Nonlinear Flexure of a Cantilever Beam with the Galerkin Method

open access: yesApplied Sciences, 2022
For the optimal design and accurate prediction of structural behavior, the nonlinear analysis of large deformation of elastic beams has broad applications in various engineering fields. In this study, the nonlinear equation of flexure of an elastic beam,
Jun Zhang   +4 more
doaj   +1 more source

Merging beam-beam interaction [PDF]

open access: yesProceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366), 2003
A new type of particle collisions is considered. In merging collisions two comoving beams intersect each other at small angle to provide low collision energy required for nuclear fusion experiments. An expression for luminosity is obtained. It is shown that luminosity has a maximum value depending on particle velocity.
Y.K. Batygin, T. Katayama
openaire   +1 more source

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