Precision mechanics and optics for the Megajoule Laser | CNIM The main objective of the Megajoule Laser, a key component of the Simulation program, is to maintain the operation and the reliability of the French nuclear deterrent power. Bertin has been on this project with the CEA for nearly 20 years, developing high precision mechanical and optical assemblies. The LMJ is designed to deliver an energy of several million joules to a target of a few millimeters, in a few billionths of a second. This considerable power makes it possible to duplicate, observe and quantify the physical phenomena involved in the nuclear operation of weapons. Bertin, a subsidiary of CNIM Group, has been in the LMJ program with the CEA for nearly 20 years, developing high precision mechanical and optical assembl

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