• Y.Budagov, Y.Denisov, I.Meshkov, A.Sissakian, G.Shirkov, G.Trubnikov
  Joint Institute for Nuclear Research, Dubna, Russia

JINR actively participates in new international mega-project ILC. JINR physicists are planning to take part in several fields of activity in ILC: works on photo injector prototype, participation in design and construction of cryomodules, laser metrology, etc. Moreover Joint Institute is full-member pretender for possible hosting of ILC in the region near Dubna. International intergovernmental status of JINR, comfortable location of site, well developed infrastructure, geological, climate and relief conditions may become powerful advantages of JINR among other institutes. All above mentioned topics are discussed in the presented report.

22

• V.F.Bykovsky, A.G.Kobets, Yu.V.Korotaev, V.I.Lohmatov, I.N.Meshkov, R.V.Pivin, A.Yu.Rudakov, I.A.Seleznev, A.O.Sidorin, A.V.Smirnov, G.V.Trubnikov, S.L.Yakovenko
  Joint Institute Nuclear Research, Dubna, Russia

General goal of the LEPTA (Low Energy Particle Toroidal Accumulator) project, which is under development in JINR now, is to create small positron storage ring equipped with an electron cooling system. Storage ring of LEPTA facility was commissioned in September, 2004. Results of testing the storage ring with electron beam are presented. Positron injector for the ring is based on ²²Na radioactive source. Positrons from the source are moderated in the solid neon and stored in electromagnetic trap. First experiments with the solid moderator have been performed. The positron trap is under test now with electron beam. This work is supported by RFBR grant 05-02-16320.

MOBP06

• I.Meshkov, R.Pivin, A.Sidorin, A.Smirnov, G.Trubnikov
  Joint Institute Nuclear Research, Dubna, Russia

BETACOOL program developed by JINR electron cooling group is a kit of algorithms based on common format of input and output files. The program is oriented to simulation of the ion beam dynamics in a storage ring in presence of cooling and heating effects. The version presented in this report includes three basic algorithms: simulation of r.m.s. parameters of the ion distribution function evolution in time, simulation of the distribution function evolution using Monte-Carlo method and tracking algorithm based on molecular dynamics technique. General processes to be investigated with the program are intrabeam scattering in the ion beam, electron cooling, interaction with residual gas and internal target.