• P.V.Logachev, A.V.Akimov, A.V.Antoshin, P.A.Bak, Yu.M.Boimelshtain, D.Yu.Bolkhovitianov, R.Galimov, S.M.Gurov, E.A.Gusev, N.S.Dikansky, S.N.Klushev, N.Kh.Kot, A.A.Korepanov, I.L.Pivivarov, Yu.I.Semenov, A.N.Skrinsky, A.R.Frolov, A.S.Tsyganov, S.V.Shiyankov
  Budker Institute of Nuclear Physics, Novosibirsk, Russia

The present status of VEPP-5 Injection Complex is presented. The results of VEPP-5 positron source operation are discussed.

19

• N.A.Vinokurov, D.A.Kayran, B.A.Knyazev, E.I.Kolobanov, V.V.Kotenkov, V.V.Kubarev, G.N.Kulipanov, A.V.Kuzmin, A.S.Lakhtychkin, A.N.Matveenko, L.E.Medvedev, S.V.Miginsky, L.A.Mironenko, A.D.Oreshkov, V.K.Ovchar, V.M.Popik, T.V.Salikova, S.S.Serednyakov, A.N.Skrinsky, O.A.Shevchenko, M.A.Scheglov
  Budker Institute of Nuclear Physics, Novosibirsk, Russia

The first stage of Novosibirsk high power free electron laser (FEL) was commissioned in 2003. It is based on the normal conducting CW energy recovery linac (ERL). Now the FEL provides electromagnetic radiation in the wavelength range 120 - 230 micron. The maximum average power is 400 W. The minimum measured line width is 0.3%, which is close to the Fourier-transform limit. Four user stations are in operation now. Manufacturing of the second stage of the FEL (based on the four-turn ERL) is in progress.

• 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