LASER SOURCE OF HIGHLY CHARGED IONS FOR ITEP TERAWATT ACCUMULATOR FACILITY

Nowadays, Laser Ion Source (LIS) is the most intense source of highly charged ions for pulse length about 5-10 µs (1). Therefore it is so attractive to fill the synchrotron rings in a single turn injection mode. By these reasons LIS is using for ITEP TeraWatt Accumulator (TWAC) facility aiming at the production of TeraWatt power level (100 kJ/100 ns) of intense ion beams (2). The absolute number of carbon and aluminum ions with different charge states generated by 5 J/0,5 Hz rep-rate CO 2-laser has been measured. Low Energy Beam Transport Line (LEBT) consisting of Einzellenses and a buncher have been used to match the source to 2 MV/2,5 MHz injector I-3. The first results of the transmission of C +4 ion beam through the LEBT and the results of acceleration in I-3 are presented. The next steps of LIS upgrading for TWAC facility are under discussion.