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Laboratory for applied mechanical and electrical engineering sciences (SIAME)
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Project name: FlashDence

Subject: Shaping of high-voltage/high current pulses 

Start date: September 1, 2017

End date: August 31, 2019

Coordinator: CEA-CESTA (Atomic energy commission of the Center for scientific and technical studies of Aquitaine)

Scientific manager at the SIAME: Laurent PECASTAING

Permanent members of the SIAME involved: Thierry REESS, Antoine SILVESTRE de FERRON

Type of contract: Cooperation agreement

Partner(s): CEA  


Project description                      

In power lasers like the Megajoule Laser located at Le Barp (France) optical power is amplified by using flash lamps to illuminate the beam.  For several years now, the CEA CESTA has been tasked with sizing the energy beds that power the flash lamps.

The aim of this project is to optimize the lighting of the lamps with the minimum amount of electrical energy to limit the thermal effects and make it possible to consider regular operation.

To reach this objective, the pulse generated by the upstream energy bed must be truncated and the current crossing the lamps must be short-circuited.  Two circuit architectures producing two different types of pulse are under study.

In the frame of this contract, an engineer has been hired on a two-year fixed-term contract.