Neutron Generation by Laser-Driven Proton Sources

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Ultra-intense lasers have demonstrated the capability of accelerating short pulses of intense ion beams. These ion beams have been used to generate short bursts of neutrons by irradiating a converter in close distance to the source, making this scheme a very compact and bright source of neutrons up to more than 100 MeV in energy. Using novel laser ion acceleration mechanisms directed beams of neutrons can be generated, which increases the brightness of these sources compared to previous attempts. We review the recent research and present experimental data using a mechanism based on relativistic transparency to drive the most intense laser driven neutron source and use them for first applications.

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