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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: Commissioning of ThomX Compton source subsystems and demonstration of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mn>10</mml:mn><mml:mn>10</mml:mn></mml:msup></mml:math> x-rays/s
Commissioning of ThomX Compton source subsystems and demonstration of x-rays/s Open
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 hig…
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: Development of a custom-made 2.8 T permanent-magnet dipole photon source for the ROCK beamline at SOLEIL
Development of a custom-made 2.8 T permanent-magnet dipole photon source for the ROCK beamline at SOLEIL Open
In August 2021, the SOLEIL storage ring was restarted after the summer shutdown with a new bending magnet made entirely of permanent magnets. Producing a magnetic field of 2.8 T, it replaced one of the 32 electromagnetic dipoles (magnetic …
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: Production of high energy photons with in vacuum wigglers: From SOLEIL wiggler to MAXIV wiggler
Production of high energy photons with in vacuum wigglers: From SOLEIL wiggler to MAXIV wiggler Open
Small gap wigglers become more and more attractive to produce high photon fluxes in the hard X-ray photon range. They use magnet blocks of high magnetization which resists much better to heating (baking, synchrotron radiation) than in the …
View article: Cryogenic Permanent Magnet Undulator for an FEL Application
Cryogenic Permanent Magnet Undulator for an FEL Application Open
A Cryogenic Permanent Magnet Undulator (CMPU) is capable of achieving high brightness radiation at short wavelengths, by taking advantage of the permanent magnets' enhanced performance at low temperature. A CPMU of period 18 mm (U18) that …
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: Construction and Optimization of Cryogenic Undulators at SOLEIL
Construction and Optimization of Cryogenic Undulators at SOLEIL Open
With permanent magnets undulator operation at cryogenic temperature, the magnetic field and the coercivity can be enhanced, enabling shorter periods with high magnetic fields. The first full scale (2 m long, 18 mm period) hybrid cryogenic …
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: Mechanical Engineering Solutions for COXINEL Project
Mechanical Engineering Solutions for COXINEL Project Open
COXINEL (COherent Xray source INferred from Electrons accelerated by Laser) is a European Research Council (ERC) advance grant aims at demonstrating Free Electron Laser amplification at 200 nm with 180 MeV electrons generated by laser plas…
View article: An application of laser–plasma acceleration: towards a free-electron laser amplification
An application of laser–plasma acceleration: towards a free-electron laser amplification Open
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View article: Development of cryogenic undulators with PrFeB magnets at SOLEIL
Development of cryogenic undulators with PrFeB magnets at SOLEIL Open
Short period high field undulators are of interest for X-ray brilliance enhancement in synchrotron radiation applications and for compact Free Electron Lasers. Cryogenic in-vacuum undulators [1] are one of the possible solutions. At SOLEIL…
View article: First Electron Beam Measurements on COXINEL
First Electron Beam Measurements on COXINEL Open
The ERC grant COXINEL aims at demonstrating experimentally Free Electron Laser (FEL) amplification with electrons generated by laser plasma acceleration (LPA). Because of the still limited electron beam performance (especially energy sprea…
View article: Progress on the LUNEX5 project
Progress on the LUNEX5 project Open
LUNEX5 (free electron Laser Using a New accelerator for the Exploitation of X-ray radiation of 5th generation) aims at investigating the production of short, intense, coherent Free Electron Laser (FEL) pulses in the 40-4 nm spectral range.…