ICALEPCS2011 - List of Authors (Chapuis, J.-C.)

Paper	Title	Page
WEPMU009	The Laser MégaJoule Facility: Personnel Security and Safety Interlocks	1070
	J.-C. Chapuis, J.P.A. Arnoul, A. Hurst, M.G. Manson CEA, Le Barp, France
	The French CEA (Commissariat à l'Énergie Atomique) is currently building the LMJ (Laser MégaJoule), at the CEA Laboratory CESTA near Bordeaux. The LMJ is designed to deliver about 1.4 MJ of 0.35 μm light to targets for high energy density physics experiments. Such an installation entails specific risks related to the presence of intense laser beams, and high voltage power laser amplifiers. Furthermore, the thermonuclear fusion reactions induced by the experiment also produce different radiations and neutrons burst and also activate some materials in the chamber environment. Both risks could be lethal. This presentation (paper) discusses the SSP (system for the personnel safety) that was designed to prevent accidents and protect personnel working in the LMJ. To achieve the security level imposed on us by labor law and by the French Safety Authority, the system consists of two independent safety barriers based on different technologies, whose combined effect can reduce to insignificant level the occurrence probability of all accidental scenarios identified during the risk analysis.

Paper

Title

Page

The Laser MégaJoule Facility: Personnel Security and Safety Interlocks

1070

J.-C. Chapuis, J.P.A. Arnoul, A. Hurst, M.G. Manson
CEA, Le Barp, France

The French CEA (Commissariat à l'Énergie Atomique) is currently building the LMJ (Laser MégaJoule), at the CEA Laboratory CESTA near Bordeaux. The LMJ is designed to deliver about 1.4 MJ of 0.35 μm light to targets for high energy density physics experiments. Such an installation entails specific risks related to the presence of intense laser beams, and high voltage power laser amplifiers. Furthermore, the thermonuclear fusion reactions induced by the experiment also produce different radiations and neutrons burst and also activate some materials in the chamber environment. Both risks could be lethal. This presentation (paper) discusses the SSP (system for the personnel safety) that was designed to prevent accidents and protect personnel working in the LMJ. To achieve the security level imposed on us by labor law and by the French Safety Authority, the system consists of two independent safety barriers based on different technologies, whose combined effect can reduce to insignificant level the occurrence probability of all accidental scenarios identified during the risk analysis.