• G. Tranquille, M. Chanel, Ch. Carly, V. Prieto, R. Sautier;
  CERN, Geneva, Switzerland,

• A. Bubley, V. Parkhomchuk, V. Reva, M. Brizgunov, M. Vedenev, V. Panasyuk;
  BINP, Novosibirsk, Russia

New LEIR cooler with variable profile of the electron beam and electrostatic bending was comissioning 2005-2006. In this paper we present our experience with the comissioning of the new device as well as the first results of ion beam Pb⁺⁵⁴ cooling with a high- intensity variable-density electron beam.

25

• 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