 On the advice of his professors, he passed the École polytechnique exam in 1949, where he graduated as a major, then joined the CEA/Saclay in the mathematical physics department headed by Jacques Yvon, Jules Horowitz, Albert Messiah, Anatole Abragam, Claude Bloch, Trocheris, etc...

Scientific Director of the CEA, he contributes to the development of atomic applications after scientific work on isotopic regulation and the construction of experimental reactors (Grenoble high flux reactor).He is working on the process of separating uranium isotopes.He is the director of the Phébus large laser program.