Control of nuclear processes in femtosecond laser plasma

Summary form only given. Recently it was shown that the X-ray emission and electrons of a laser plasma produced by the femtosecond pulses of moderate intensity can be effectively used to excite the low-lying nuclear levels with energy up to a few 100 keV. The low-lying isomer states of the nuclei are usually characterized by the high value of the conversion coefficient. Therefore to separate isotopes in a mixture we can use the following scheme. At the first stage we dress the ions produced in laser plasma, for example, by depositing them on substrate, and, at the second stage, the internal conversion decay of the excited nuclei produces the ions of the desired isomer. The ions can be easily extracted with the help of conventional methods and deposited on the separate substrate.