• V.Parkhomchuk
  Budker Institute of Nuclear Physics, Novosibirsk, Russia

• A.Papash
  Joint Institute Nuclear Research, Dubna, Russia

A compact cyclotron to accelerate negative Hydrogen ions up to 8 MeV is considered the optimal solution to the problem of charging the high voltage terminal of the Electron Cooling System for High Energy Storage Ring at GSI (HESR Project, Darmstadt). Physical as well as technical parameters of the accelerator are estimated. Different types of commercially available cyclotrons are compared as a possible source of a 1 mA H- beam for HESR. An original design based on the application of well-established technical solutions for commercial accelerators is proposed.

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• 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

• 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

• 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

• E.Levichev, V.Parkhomchuk, S.Rastigeev, A.Skrinsky, V.Vostrikov
  Budker Institute of Nuclear Physics, Novosibirsk, Russia

• M.Kumada
  NIRS, Chiba, Japan

A carbon ion or proton beams are a superior tool to x-rays in both physical and biological doses in treating a cancer. A carbon beam has an advantage in treating radiation resistant and deep-seated tumors. The main limitation of wide application is a high cost of facility. This problem can be solved by our proton and carbon ion accelerator facility proposal on the base of Cold Beam Synchrotron. The main feature of the facility is an application of electron cooling device. The ion beam is cooled down and the beam emittance and an energy spread are decreased. The final high quality cold ion beam with small transverse emittance and momentum spread allows to decrease significantly the aperture of the synchrotron and components of high energy beam transfer lines.

363

• V.Kiselev, E.Levichev, V.Parkhomchuk, Yu.Pupkov, V.Vostrikov
  Budker Institute of Nuclear Physics, Novosibirsk, Russia

The rapid cycling booster synchrotron is used as pre-accelerator for carbon ion facility for cancer therapy. Booster provides about 10¹⁰ carbon ions per second at extraction energy 30 MeV/unit, at a repetition rate of 10 Hz. At the same time the booster can be used for acceleration of protons and delivers about 10¹² protons per minute at a maximum extraction energy of 250 MeV in separate irradiation port.

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