THE LOW ENERGY POSITRON STORAGE RING FOR POSITRONIUM GENERATION: STATUS AND DEVELOPMENTS

The project of Low Energy Particle Toroidal Accumulator (LEPTA) is dedicated to construction of a small positron storage ring with electron cooling of positrons circulating in the ring. The project has a few goals: to construct the LEPTA storage ring and to study its characteristics; to set up first experiments with Ps in flight; to study positron dynamics in the ring. Presently the magnetic and vacuum systems of the positron ring are constructed and tested. The positron injector is designed and under construction now. Test of the magnetic system with electron beam is in progress. Commissioning of the ring with circulating electron beam is scheduled by the end of the year.