MEASUREMENT OF ~(79)Se WITH AMS

The PX-AMS--projectile X-ray AMS has The ability to discrimination heavy isobars at low ion energies, in order to measure ~(79)Se, The PXAMS system has been set up. The AMS combined with projectile characteristic X-rays technique for ~(79)Se measurement have been described, and The half life of ~(79)Se has been re-measured.