Frédéric Blache
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View article: Panoply of insertion devices for SOLEIL II
Panoply of insertion devices for SOLEIL II Open
SOLEIL II is a project aiming at upgrading the present SOLEIL synchrotron to a fourth-generation light source. The photon spectral performance parameters such as brightness and flux density will be highly increased by a drastic decrease of…
View article: A bi-periodic undulator for SOLEIL II: concept and prototype
A bi-periodic undulator for SOLEIL II: concept and prototype Open
The recent improvements in the field of synchrotron light sources push the limits of brightness and pave the way for new scientific research. The upgrade of Synchrotron SOLEIL, called SOLEIL II, aims at optimizing photon production by redu…
View article: Tunability of a red-shifted free electron laser
Tunability of a red-shifted free electron laser Open
The development of red-shifted free electron lasers (FELs), based on strongly chirped electron beams, emerged a few years ago. Here we present a thorough study of the tunability of a seeded red-shifted FEL. An analytical model is introduce…
View article: The COXINEL Seeded Free Electron Laser Driven by the Laser Plasma Accelerator at HZDR
The COXINEL Seeded Free Electron Laser Driven by the Laser Plasma Accelerator at HZDR Open
Laser Plasma Accelerators know a tremendous development these recent years. Being able to reach up to ~100 GV/m, they open new perspectives for compact accelerators. Their performance can be qualified by a Free Electron Laser Application. …
View article: Bi-periodic Undulator: Innovative Insertion Device for SOLEIL II
Bi-periodic Undulator: Innovative Insertion Device for SOLEIL II Open
SOLEIL II project will lead to optimize the production of photons by a modification of the present facility. The storage ring will be redesigned to reduce electron beam emittance, increase photon beam flux and brightness, and improve beaml…
View article: Seeded free-electron laser driven by a compact laser plasma accelerator
Seeded free-electron laser driven by a compact laser plasma accelerator Open
Free-electron lasers generate high-brilliance coherent radiation at wavelengths spanning from the infrared to the X-ray domains. The recent development of short-wavelength seeded free-electron lasers now allows for unprecedented levels of …
View article: Progress towards laser plasma based free electron laser on COXINEL
Progress towards laser plasma based free electron laser on COXINEL Open
The Free Electron Laser (FEL) application of Laser Plasma Acceleration (LPA) requires the handling of the energy spread and divergence. The COXINEL manipulation line, designed and built at SOLEIL for this purpose, consists of high gradient…
View article: Energy spread tuning of a laser-plasma accelerated electron beam in a magnetic chicane
Energy spread tuning of a laser-plasma accelerated electron beam in a magnetic chicane Open
International audience
View article: COXINEL transport of laser plasma accelerated electrons
COXINEL transport of laser plasma accelerated electrons Open
International audience
View article: Skew Quadrupole Effect of Laser Plasma Electron Beam Transport
Skew Quadrupole Effect of Laser Plasma Electron Beam Transport Open
Laser plasma acceleration (LPA) capable of providing femtosecond and GeV electron beams in cm scale distances brings a high interest for different applications, such as free electron laser and future colliders. Nevertheless, LPA high diver…
View article: Progress Towards Laser Plasma Electron Based Free Electron Laser on COXINEL
Progress Towards Laser Plasma Electron Based Free Electron Laser on COXINEL Open
Laser plasma acceleration (LPA) with up to several GeV beam in very short distance appears very promising. The Free Electron Laser (FEL), though very challenging, can be viewed as a qualifying application of these new emerging LPAs. The en…
View article: Control of Laser Plasma Accelerated Electrons: A Route for Compact Free Electron Lasers
Control of Laser Plasma Accelerated Electrons: A Route for Compact Free Electron Lasers Open
The recent spectacular development of laser plasma ac- celerators that now can deliver GeV electron beams in an extremelyshortdistancemakesthemverypromising. Ap- plications for light sources based on undulator radiation and free electron l…
View article: Transportation and Manipulation of a Laser Plasma Acceleration Beam
Transportation and Manipulation of a Laser Plasma Acceleration Beam Open
The ERC Advanced Grant COXINEL aims at demonstrating free electron laser amplification, at a resonant wavelength of 200 nm, based on a laser plasma acceleration source. To achieve the amplification, a 10 m long dedicated transport line was…
View article: Tunable High-Gradient Quadrupoles for a Laser-Plasma Acceleration-Based FEL
Tunable High-Gradient Quadrupoles for a Laser-Plasma Acceleration-Based FEL Open
The magnetic design and characterization of tunable high gradient permanent magnet based quadrupole, are presented. To achieve a high gradient field with a compact structure, permanent magnets are chosen rather than usual electro-magnets d…
View article: Study of the Electron Transport in the COXINEL FEL Beamline Using a Laser-Plasma Accelerated Electron Beam
Study of the Electron Transport in the COXINEL FEL Beamline Using a Laser-Plasma Accelerated Electron Beam Open
The ERC Advanced Grant COXINEL aims at demonstrating free electron laser (FEL) at 200 nm, based on a laser-plasma accelerator (LPA). To achieve the FEL amplification a transport line was designed to manipulate the beam properties. The 10 m…
View article: U15 Design and Construction Progress
U15 Design and Construction Progress Open
A 15 mm period PrFeB Cryogenic Permanent Magnet Undulator (CPMU) is under construction at SOLEIL in the frame of a collaboration with MAXIV, relying on the experience gained from the two PrFeB CPMU already installed at SOLEIL. The improved…
View article: Towards a Free Electron Laser Using Laser Plasma Acceleration
Towards a Free Electron Laser Using Laser Plasma Acceleration Open
Since the laser invention, the advent of X-ray Free Electron Lasers (FEL) half a century later, opens new areas for matter investigation. In parallel, the spectacular development of laser plasma acceleration (LPA) with several GeV beam acc…
View article: Progress of Pr2Fe14B Based Hybrid Cryogenic Undulators at SOLEIL
Progress of Pr2Fe14B Based Hybrid Cryogenic Undulators at SOLEIL Open
Cryogenic Permanent Magnet Undulators (CPMUs) take advantage of the enhanced field performance of permanent magnets when cooled down to low temperature, enabling shorter period with sufficient magnetic field to achieve high brightness radi…
View article: Overview of Some Feedback & Control Systems at Synchrotron Soleil
Overview of Some Feedback & Control Systems at Synchrotron Soleil Open
This paper gives an overview of some feedback & control systems in Synchrotron SOLEIL that are in use or in development today. Electron Beam stability is something that is being addressed in several SOLEIL applications; Fast Orbit Feedback…
View article: Electron Transport on COXINEL Beam Line
Electron Transport on COXINEL Beam Line Open
COXINEL experiment aims at demonstrating free electron laser (FEL) amplification with a laser plasma accelerator (LPA). For COXINEL, a dedicated 8 m transport line has been designed and prepared at SOLEIL. We present here LPA beam transpor…
View article: Flyscan: a Fast and Multi-technique Data Acquisition Platform for the SOLEIL Beamlines
Flyscan: a Fast and Multi-technique Data Acquisition Platform for the SOLEIL Beamlines Open
SOLEIL is continuously optimizing its 29 beamlines in order to provide its users with state of the art synchrotron radiation based experimental techniques. Among the topics addressed by the related transversal projects, the enhancement of …
View article: Revolution Project: Progress in the Evolution of Soleil Motion Control Model
Revolution Project: Progress in the Evolution of Soleil Motion Control Model Open
SOLEIL is a third generation synchrotron radiation source located near Paris in France. REVOLUTION (REconsider Various contrOLler for yoUr motion) is the motion controller upgrade project currently in progress at SOLEIL. It was initiated t…