• V.M.Veremeenko, R.V.Voskoboynikov, A.D.Goncharov, Yu.A.Evtushenko, V.V.Kolmogorov, M.N.Kondaurov, G.S.Kraynov, A.M.Kryuchkov, A.S.Medvedko, V.V.Parkhomchuk, S.P.Petrov, V.B.Reva, M.A.Tiunov, B.R.Karymov
  Budker Institute of Nuclear Physics, Novosibirsk, Russia

High voltage power supplies, developed for feeding the electron coolers EC-35 and EC-300, are described in this report. Stabilized voltage power supplies with output voltages 35 kV and 300 kV with the current up to 5mA and stability up to 10-5 are used for electron cooling of heavy ion beam. Under high potential of these power supplies there are many auxiliary power supplies, feeding the gun, control electrode, suppressor and control electronics. In this report the original decisions underlying in development of power supplies are considered. The electron coolers were developed under the contract between Budker Institute of Nuclear Physics (Novosibirsk, Russia) and Institute of Modern Physics (Lanzhou, China)

97

• M.I.Brizgunov, A.V.Bubley, V.M.Panasiuk, V.V.Parkhomchuk, V.B.Reva
  Budker Institute of Nuclear Physics, Novosibirsk, Russia

The Courant-Snyder parametrization is most convenient way for describing particle-uncoupled motion in a storage ring. In the case of the weak-coupling this parametrization can be extended with the Edward-Teng or Lebedev description ways. The eigenvectors and eigenvalues of the betatron oscillation matrix slightly modified but the its physics meaning is kept. Such parametrizations work for the strong coupling yet but the physics interpretation obtained results are complicate enough. This article proposed another way for the description of the particle motion in the storage ring with the strong longitudinal magnetic field.

159

• A.V.Bubley, M.I.Brizgunov, V.M.Panasiuk, V.V.Parkhomchuk, V.B.Reva, M.A.Vedenev, V.A.Vostrikov
  Budker Institute of Nuclear Physics, Novosibirsk, Russia

The report deals with a new conception of the storage ring for low energy with electron beam and internal target. The using of the electron cooling in the storage ring with the strong longitudinal field looks promising in order to obtain the luminosity value 10³³ – 10³⁴ cm^-2s^-1 that may be used in the physics nucleus experiments.

165

• N.I.Alinovsky, A.D.Goncharov, V.F.Klyuev, A.V.Kozhemyakin, A.M.Kryuchkov, V. V.Parkhomchuk, M.V.Petrichenkov, S.A.Rastigeev, V.B.Reva
  Budker Institute of Nuclear Physics, Novosibirsk, Russia

Present status of the accelerator mass spectrometry (AMS) facility at BINP is described. The AMS facility with additional electric and magnetic analyzers into the terminal of tandem accelerator is dedicated for precise analysis of carbon isotopes. The results of experiments on ion beams acceleration and stripping are given.

354