Possibility of transmutation of Cs135 by ultraintense laser

Abstract

The possibility of photo-transmutation of long-lived nuclide ${}^{135}\mathrm{Cs}$ by ultrashort ultraintense laser was analytically evaluated. The yield of ${}^{135}\mathrm{Cs}(\mathrm{\gamma },n)$ ${}^{134}\mathrm{Cs}$ was strongly dependent on the laser intensity at around ${10}^{20}\mathrm{W}∕{\mathrm{cm}}^2$ . If ${}^{135}\mathrm{Cs}$ were irradiated by such a laser with the intensity of ${10}^{21}\mathrm{W}∕{\mathrm{cm}}^2$ and 10 Hz for 30 min, characteristic $\mathrm{\gamma }$ -ray counting rate was estimated to be 3 Bq.