Sep 15 – 21, 2019
Hotel Hermitage, La Biodola Bay, Isola d'Elba, Italy
Europe/Rome timezone

Control of undulator radiation using a Laser Plasma Acceleration Source

Sep 16, 2019, 7:00 PM
Parking Area (Hotel Hermitage)

Parking Area

Hotel Hermitage

poster WG5 - Plasma devices, plasma and beam diagnostics Cheese and Wine Poster Session 1


Amin Ghaith (synchrotron soleil)


Spontaneous undulator radiation emission, after the COXINEL line using a Laser Plasma acceleration (LPA) source, has been observed. The line enables to manipulate the electron beam phase space such as emittance, dispersion and energy spread along a 10 m long transport. The large divergence is handled at a very early stage to mitigate the chromatic emittance, using high gradient permanent magnet based quadrupoles mounted on translation tables to enable Beam Pointing Alignment Compensation that allows for a dispersion free focused beam. The operating energy is between 161-180 MeV focused in a 2-m long cryo-ready undulator with a period of 18 mm emitting light in the Ultra-Violet range. The spectral flux is characterized using a spectrometer and the angular flux is captured by a CCD camera. The wavelength is tuned by either changing the electron beam energy or by adjusting the undulator gap. We show that the angular-spectral moon shape type pattern of the undulator radiation provides an insight on the electron beam quality and its transport. The radiation pattern signature is illustrated alongside its dependence on the energy spread that is modified by introducing a slit in a magnetic chicane where a small relative bandwidth of 2% has been achieved.

Primary authors

Amin Ghaith (synchrotron soleil) Marie Emmanuelle Couprie (Synchrotron SOLEIL) S. Corde (LOA, ENSTA ParisTech, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris) Victor Malka (LOA) Alexandre Loulergue (Synchrotron SOLEIL) Dr marie labat (synchrotron soleil) Dr eleonore roussel (Univ. Lille, CNRS, UMR 8523 - PhLAM - Physique des Lasers Atomes et Molécules) Dr olena kononenko (LOA, École polytechnique, ENSTA ParisTech, CNRS) Prof. serge bielawski (Univ. Lille, CNRS, UMR 8523 - PhLAM - Physique des Lasers Atomes et Molécules) Mr mathieu valleau (synchrotron soleil) Mr driss oumbarek (synchrotron soleil)

Presentation materials