Using the FLNR Accelerator Complex for SEE Testing: State of Art and Future Development

Abstract

Since 2010 the Russian Federal Space Agency (Roscosmos) has been utilizing SEE testing facilities at the Flerov Laboratory of Nuclear Reactions (FLNR) of the Joint Institute for Nuclear Research (JINR) in Dubna. The FLNR has abundant experience in development, creation and using heavy ion cyclotrons, ECR ion sources and auxiliary systems. The FLNR Accelerating Complex consists of four isochronous cyclotrons, two of them: U400 and U400M are used in programs of SEE testing with heavy ions. At present time, the accelerators equipped by four specialized beam lines for SEE testing. Beams of elements from Li to Bi in two energy ranges: 3 ÷6 MeV/nucleon (lower range) and 20 ÷50 MeV/nucleon (upper range) are available to users. Specialized beam lines provide irradiating areas up to 300 cm2 for the lower range and up to 28 cm2 for the upper one. Beam inhomogeneity over the irradiating area is not worse than 20%. On-line and ex situ diagnostics of the main experimental parameters have been provided. Annual operation of U-400 and U-400M is about 6000 hours each. Annual operation of SEE testing facilities at FLNR is about 2000 hours. The future FLNR plans of SEE testing development are presented.