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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 and Melone, J J and Amthor, K-U and Ewald, F and Liesfeld, B and Schwoerer, H and Sauerbrey, R (2008) Study of photo-proton reactions driven by bremsstrahlung radiation of high-intensity laser generated electrons. New Journal of Physics, 10. 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.