Project of TWAC Electron Cooler

Abstract

The ITEP-TWAC is a new heavy ion accumulator facility under construction at ITEP in Moscow [B. Sharkov et al., Nucl. Instr. Meth. A415, 20(1998)]. The TWAC project directs on development and promotion of high intensity and high power heavy ion beam technology. The main goal of the TWAC project is accumulation in the storage ring of intense ion beam, its longitudinal compression and using the extracted beam for plasma experiments. An electron cooler with electron energy of 380 keV provides a small ion bunch size during charge-exchange injection into the U10 accumulator ring [I. Meshkov et al., Design project of electron cooling system for TWAC accumulator ring (Dubna, 2001)]. The cooling time is compared with the storage time during charge-exchange multi-turn injection. The electron cooler allows us to significantly improve the beam parameters at the target (specific energy, specific power and so on) and to suppress the beam losses by an order of magnitude. The application of electron cooling allows an increase in of the final power of an extracted ion beam on a target by a factor 2-3.