Presentation + Paper
23 February 2017 LMJ status: second bundle commissioning and assessment of first years of service
M. Nicolaizeau, P. Vivini
Author Affiliations +
Abstract
The Laser Megajoule facility, developed by the CEA is designed to provide the experimental capabilities to study high density plasma physics. The 176 Nd:glass laser beams of the facility will deliver a total energy of 1.4MJ of UV light at 0.35 μm and a maximum power of 400 TW. The laser beams are focused on a micro-target inside a 10-meter diameter spherical chamber.

A first bundle of eight laser beams was officially commissioned in October 2014. Since then, several experimental campaigns have been carried out, to qualify LMJ experimental capability and to validate radiative hydrodynamics simulations. New target diagnostics were installed around the target chamber for that purpose.

The installation of new bundles is continuing, simultaneously to the physics experiments. A second control room has been dedicated to the first steps of every bundle integration.

In parallel with the assembly of the bundles, the laser process is continuously improving (low contrast beam profile, upgraded chamber center reference, improved focal spot profile).

Second bundle commissioning has been achieved at the end of 2016 with some physics experiments using the 16 operational beams.

The LMJ facility is now operational with two bundles (16 beams) and the bundle commissioning rhythm is increasing. The present performances meet the needed requirements for the physics experiments. We are currently integrating new bundles, increasing the LMJ laser beam energy, and installing new diagnostics in order to achieve the next configurations.
Conference Presentation
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Nicolaizeau and P. Vivini "LMJ status: second bundle commissioning and assessment of first years of service", Proc. SPIE 10084, High Power Lasers for Fusion Research IV, 1008402 (23 February 2017); https://doi.org/10.1117/12.2250216
Lens.org Logo
CITATIONS
Cited by 3 scholarly publications.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Diagnostics

Physics

Mirrors

Picosecond phenomena

Fusion energy

Laser beam diagnostics

Laser processing

RELATED CONTENT

Precise curvature measurement of Yb:YAG thin disk
Proceedings of SPIE (January 07 2015)
The multiple-pulse driver line on the OMEGA laser
Proceedings of SPIE (February 26 2015)
Progress on the XG III high intensity laser facility with...
Proceedings of SPIE (February 03 2015)
High-power CPA Nd:glass laser development at ILE
Proceedings of SPIE (December 08 1997)
Status of the SG-III solid state laser project
Proceedings of SPIE (July 23 1999)

Back to Top