R. Nagaoka

mbtrack2

Alexis Gamelin, Watanyu Foosang, Naoto Yamamoto, V. Gubaidulin et autres

mbtrack2 is a coherent object-oriented framework written in python to work on collective effects in synchrotrons.

fr, jp (code pays fourni par la source)

Interaction of intrabeam scattering, longitudinal wakefield and a passive harmonic rf cavity in SOLEIL II

V. Gubaidulin, S. E. Feddaoui Dellalou, Alexis Gamelin, S. Habet et autres

Abstract Synchrotron light sources worldwide are transforming into next-generation facilities with ultra-low transverse emittances at the diffraction limits. With these parameters, intrabeam scattering (IBS) becomes significant and can spoil the light quality by increasing the natural emittance and energy spread. A harmonic …

fr (code pays fourni par la source)

Transverse beam instabilities in low-emittance booster synchrotrons

Watanyu Foosang, Alexis Gamelin, V. Gubaidulin, R. Nagaoka

As the ring-based light source community is moving toward fourth-generation light sources, many facilities plan to upgrade their boosters in parallel to meet the more demanding beam properties for the storage ring, especially in terms of a much lower emittance. Concerns over …

fr (code pays fourni par la source)

Commissioning of ThomX Compton source subsystems and demonstration of 10 10 x-rays/s

Muath Alkadi, M.A. Alves, Manar Amer, Loïc Amoudry et autres

ThomX is a compact x-ray source based on Compton scattering, installed at IJCLab (Laboratoire de physique des 2 infinis-Irène Joliot-Curie) in Orsay. The machine uses a small electron storage ring and an intense laser pulse stored in a high-finesse optical cavity. This …

fr (code pays fourni par la source)

Analysis of off-momentum nonlinear driving terms for enlarging off-momentum dynamic apertures

Bingfeng Wei, Zhenghe Bai, Guangyao Feng, Alexandre Loulergue et autres

Due to scattering, particles in a ring may have large momentum deviations, which will change their dynamics, potentially resulting in particle losses. Optimization of off-momentum nonlinear dynamics is, therefore, important for increasing beam lifetime. When analyzing off-momentum dynamics using the approach of …

cn, fr (code pays fourni par la source)

Transverse beam instabilities in low-emittance booster synchrotrons

Watanyu Foosang, Alexis Gamelin, V. Gubaidulin, R. Nagaoka

As the ring-based light source community is moving towards fourth-generation light sources, many facilities plan to upgrade their boosters in parallel to meet the more demanding beam properties for the storage ring, especially in terms of a much lower emittance. Concerns over …

fr (code pays fourni par la source)

First production of X-rays at the ThomX high-intensity Compton source

M. Jacquet, Patrick Alexandre, Muath Alkadi, M.A. Alves et autres

fr, us, it, ch (code pays fourni par la source)

Minimizing the Fluctuation of Resonance Driving Terms for Analyzing and Optimizing the Storage Ring Dynamic Aperture

Zhenghe Bai, Alexandre Loulergue, Laurent S. Nadolski, R. Nagaoka et autres

Minimization of resonance driving terms (RDTs) of nonlinear magnets such as sextupoles and octupoles is an essential condition for enlarging the dynamic aperture (DA) of a storage ring. We recently studied the correlation between minimizing the fluctuation or variation of RDTs along …

cn, fr (code pays fourni par la source)

Beam Dynamics Using Superconducting Passive Harmonic Cavities with High Current per Bunch

Alexis Gamelin, V. Gubaidulin, Alexandre Loulergue, Patrick Marchand et autres

In 4th generation synchrotron light sources, harmonic cavities (HCs) are critical components needed to achieve the required performance. They provide longer bunches, which helps to reduce statistical effects (intra-beam scattering and Touschek effect). In "timing" modes, where the bunch spacing is larger …

fr, jp (code pays fourni par la source)

Effect of Betatron Coupling on Transverse Mode-Coupling and Head-Tail Instabilities

Watanyu Foosang, Alexis Gamelin, R. Nagaoka

In the context of SOLEIL Upgrade, the 4th generation storage ring project of SOLEIL, several methods are pursued to extend the beam lifetime and limit the emittance growth by reducing the Touschek effect and intra-beam scattering. Betatron coupling is one of the …

fr (code pays fourni par la source)

SOLEIL Machine Status and Upgrade

Laurent S. Nadolski, Gwenaelle Abeillé, Yves-Marie Abiven, François Bouvet et autres

SOLEIL is both a 2.75 GeV third generation synchrotron light source and a research laboratory at the forefront of experimental techniques dedicated to matter analysis down to the atomic scale, as well as a service platform open to all scientific and industrial …

fr (code pays fourni par la source)

TDR Baseline Lattice for the Upgrade of SOLEIL

Alexandre Loulergue, David Amorim, Oscar Blanco-García, P. Brunelle et autres

Previous CDR studies for the SOLEIL Upgrade project have converged towards a lattice alternating 7BA and 4BA HOA type cells providing a low natural horizontal emittance value in the 80 pm.rad range at an energy of 2.75 GeV. This lattice adapts to …

fr (code pays fourni par la source)