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Study of photo-proton reactions driven by bremsstrahlung radiation of high-intensity laser generated electrons

Spohr, K.M. and Shaw, M. and Galster, W. and Ledingham, K.W.D. and Robson, L. and Yang, J.M. and McKenna, P. and McCanny, T. (2008) Study of photo-proton reactions driven by bremsstrahlung radiation of high-intensity laser generated electrons. New Journal of Physics, 10. 043037-1-043037-25. ISSN 1367-2630

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Abstract

Photo-nuclear reactions were investigated using a high power table-top laser. The laser system at the University of Jena ( I similar to 3-5 x 10(19) W cm(-2)) produced hard bremsstrahlung photons ( kT similar to 2(9 MeV) via a laser-gas interaction which served to induce ( gamma, p) and ( gamma, n) reactions in Mg, Ti, Zn and Mo isotopes. Several ( gamma, p) decay channels were identified using nuclear activation analysis to determine their integral reaction yields.