Nicolas Béchu
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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: SOLEIL Machine Status and Upgrade
SOLEIL Machine Status and Upgrade Open
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 scie…
View article: SOLEIL Update Status
SOLEIL Update Status Open
SOLEIL is both a synchrotron light source and a research laboratory at the cutting edge of experimental techniques dedicated to matter analysis down to the atomic scale, as well as a service platform open to all scientific and industrial c…
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: SOLEIL Status Report
SOLEIL Status Report Open
SOLEIL is both a synchrotron light source and a research laboratory at the cutting edge of experimental techniques dedicated to matter analysis down to the atomic scale, as well as a service platform open to all scientific and industrial c…
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: Retractable Absorber (Mask) and White Beam Imager Diagnostic for Canted Straight Section
Retractable Absorber (Mask) and White Beam Imager Diagnostic for Canted Straight Section Open
At the SOLEIL synchrotron, as in other accelerators, two canted sources can coexist on the same straight section for space and economic reasons. For its two long beamlines (ANATOMIX source upstream and NANOSCOPIUM source downstream) SOLEIL…
View article: Cryo-Ready Undulator U15: Passing SOLEIL’s 2 Meters Threshold in Useful Magnetic Length
Cryo-Ready Undulator U15: Passing SOLEIL’s 2 Meters Threshold in Useful Magnetic Length Open
The U15 is an in-vacuum undulator designed to operate at room temperature and at 70K. It is the first in-vacuum undulator designed, assembled and which will be used in SOLEIL’s storage ring that have support beams for magnets longer than 2…
View article: Operating Simultaneously Two In-Vacuum Canted Undulators in Synchrotron SOLEIL
Operating Simultaneously Two In-Vacuum Canted Undulators in Synchrotron SOLEIL Open
Each long SOLEIL beamline, ANATOMIX and Nanoscopium, takes a photon beam from an in-vacuum undulator with a minimum gap of 5.5 mm. The canted radiation sources are installed in a long straight section of the storage ring. The first closure…
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…