Three laser beams are available in this experimental area - the ns NORTH beam, the ps SOUTH beam [pico2000 configuration] and the ns blue beam - according to a fixed irradiation geometry. The MILKA target chamber is a spherical vacuum vessel, with a diameter of around 2m. The vacuum inside can be pushed down to 10-2 mbar (10-4 Pa) in 30 minutes. As the SOUTH beam is operated in the ps regime, the room is radioprotected and radiologically controlled thanks to implementation of dosimeters in strategic places. 

 

Laser-based light source parameters

BLUE

Source type
IR long (ns) probe laser beam (Nd:glass)
Peak Photon energy / central wavelenght
1053 [nm]
Fluctuations of the peak photon energy / central wavelenght
Thanks to frequency doubling, 526 nm central laser wavelength is available.
Beam shape
Other...
Other beam shape
The laser pulse is shaped upon request over a total duration of 0.5 to 15 ns. Energy-dependent data are given for 1,5 ns and at 1053nm.
Pulse duration FWHM
15 * 10-1 [ns]
Other polarisation
linear (vertical or horizontal depending on implemented optics)
Pulse repetition rate
8 * 10-4 [Hz]
Maximum pulse energy
44 [J]
Peak power
3 * 1010 [W]
Peak fluence on target
56 * 104 [J/cm2]
Peak intensity on target
4 * 1014 [W/cm2]
Source size (spot)
X = 50 [um], Y = 50 [um]
Beam diameter
75 [mm]

NORTH

Source type
IR long (ns) high-energy laser beam (Nd:glass)
Peak Photon energy / central wavelenght
1053 [nm]
Fluctuations of the peak photon energy / central wavelenght
Thanks to frequency doubling, 526 nm central laser wavelength is available.
Beam shape
Other...
Other beam shape
The laser pulse is shaped upon request over a total duration of 0.5 to 15 ns. Energy-dependent data are given for 1,5 ns and at 1053nm.
Pulse duration FWHM
15 * 10-1 [ns]
Other polarisation
linear (vertical or horizontal depending on implemented optics)
Pulse repetition rate
18 * 10-3 [Hz]
Maximum pulse energy
800 [J]
Peak power
53 * 1010 [W]
Peak fluence on target
3 * 107 [J/cm2]
Peak intensity on target
2 * 1016 [W/cm2]
Source size (spot)
X = 30 [um], Y = 30 [um]
Beam diameter
180 [um]

PICO2000

Source type
IR short (ps) high-energy laser beam (Nd:glass, CPA)
Peak Photon energy / central wavelenght
1053 [nm]
Fluctuations of the peak photon energy / central wavelenght
Thanks to frequency doubling, 526 nm central laser wavelength is available.
Beam shape
Gaussian
Other beam shape
Duration can be adjusted from 1 to 30 ps. Energy-dependent data are given for 1 ps and 1053 nm.
Pulse duration FWHM
1 [ps]
Polarisation
Linear Vertical
Pulse repetition rate
28 * 10-3 [Hz]
Maximum pulse energy
100 [J]
Peak power
1 * 1014 [W]
Peak fluence on target
35 * 106 [J/cm2]
Special modes
Due to the high intensity reached on target, internal shielding is implemented inside the vacuum chamber, close to the target. It is possible to remove it for intensities below 1**18 W/cm2.
Peak intensity on target
2 * 1019 [W/cm2]
Source size (spot)
X = 12 [um], Y = 12 [um]
Beam diameter
180 [mm]
Support Laboratories

Target lab

Description

A target lab is available at the LULI laboratory. Its main function is to provide the necessary skills to manufacture and characterize targets used for the experiments on the LULI laser facilities. Various designs and aspects are studied, ranging from simple sheets of solid materials to liquid or gaseous cells.


contacts
Sophie Baton
Techniques
Absorption
  • EXAFS
  • Time-resolved studies
Diffraction
  • Time-resolved studies
Emission or Reflection
  • Time-resolved studies
Imaging
  • Fluorescence imaging
Scattering
  • Elastic scattering
  • Inelastic scattering
Disciplines
Energy
  • Fusion
Material Sciences
  • Technique Development - Material Sciences
Physics
  • Astronomy/Astrophysics/Astroparticles
  • Atomic & molecular physics
  • Matter under extreme conditions, warm dense matter, plasmas
  • Optics
  • Technique Development - Physics
control/Data analysis
Control Software Type
  • depending on the implemented diagnostic instrument and on the providing company (ANDOR, HAMAMATSU, etc.)
Data Output Type
  • depending on the implemented diagnostic instrument and on the providing company: mainly binary files
Data Output Format
  • depending on the implemented diagnostic instrument and on the providing company: .sif, .img, .txt, .dat, etc.
Softwares For Data Analysis
  • VISAR and 2D interferometry image processing software: NEUTRINO (available through GitHub) <br />Particule trace code for modeling proton probing data: qTRACE (available on demand)<br /> Various tools for x-ray spectroscopy: Tools for Physicists (online)
Equipment That Can Be Brought By The User
Additional diagnostic equipement can be brought by users once approved by the facility; a Prevention Plan has thus to be written prior to any implementation.
Other Equipment Available On Site
Phase plates can be implemented on all long (ns) beams.
A set of diagnostic instruments is made available to users; it includes visible and x-ray streak cameras, visible gated optical imagers, imaging plates, radiochromatic films, ... and - through collaboration with internal teams - two-color VISAR for plasma interferometry.
An electromagnetic pulser, allowing production of external magnetic fields of ~40 T and investigation of magnetized plasmas, can be implemented close to the target chamber.
in partnership with