Ecole Polytechnique

Centre National De La Recherche Scientifique

Deutsches Krebsforschungszentrum

Ecole Nationale Superieure De Techniques Avancees

Jérôme Faure

Victor Malka

Jean-Paul Chambaret

Thomas Fuchs

Hanitra Szymanowski

Frédéric Burgy

Yannick Glinec

Uwe Oelfke

Jean Philippe Rousseau

Ahmed Ben-Ismail

Erik Lefebvre

A device and a method for creating a spatial dose distribution in a medium volume () are described. A laser system produces laser pulses () with a pulse length shorter than 200 fs (femtoseconds) and is capable to be focused to peak intensities greater than 10^18 W/cm^2 (watts per centimeter squared). An electron source () is capable of releasing a high-energy electron pulse (), in particular the electrons having an energy greater than 100 MeV, upon irradiation with said laser pulses () propagating into the medium volume (). The light paths () of at least some of the laser pulses () are adjustable in such a way that high-energy electron pulses () are emitted from the irradiated at least one electron source on different trajectories () through the medium volume () thereby depositing their dose in the medium volume () according to a provided pattern.

Device and method for creating a spatial dose distribution in a medium volume

A device for generating a high-energy particle pulse is provided which comprises a laser system producing laser pulses with pulse length shorter than 100 fs (femtoseconds), and capable to be focused to peak intensities greater than 10A18 W/cmA2, preferred greater than 10A20 W/cmA2 (watts per centimeter squared), a device for shaping the temporal intensity profile accompanying said at least one laser pulse for increasing the laser contrast above 10^5, preferably above IL 0A7, especially 1OA10, and a target capable of releasing a high-energy particle pulse, particularly an electron or a proton pulse, upon irradiation with at least one of said laser pulses. A. corresponding method using the device is also described.

Device and method for high-energy particle pulse generation

Growing community of inventors

Cachan, France

Jérôme Faure