• E.A.Bekhtenev, E.N.Dementev, S.M.Gurov, G.V.Karpov, P.V.Logatchev,A.S.Medvedko
  Budker Institute of Nuclear Physics, Novosibirsk, Russia

A new beam position measurement (BPM) system has been designed, manufactured and tested in VEPP-5 preinjector. This system measures position of single electron and positron bunches for each injection cycle with help of stripline pickups. New BPM electronics provides more high sensitivity with respect to existing one developed in 1998. The system can measure the position of bunches with 10⁸ particles per bunch. The whole dynamic range is from 10⁸ to 5*10¹⁰ particles per bunch. The resolution of measurements of single bunch is better than 20 microns for 10¹⁰ particles per bunch. The features of system design, the main parameters and results obtained in VEPP-5 preinjector are presented.

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• V.E.Akimov, A.V.Bulatov, P.V. Logatchev, I.V.Kazarezov, A.A.Korepanov, D.A.Maliutin, A.A.Starostenko, A.A.Pachkov
  Budker Institute of Nuclear Physics, Novosibirsk, Russia

The electron miniaccelerator for the charged particles beam nondestructive diagnostics with operating voltage 200 kV, half-wave duration 4 mks and beam current within few mA is described. The primary circuit is switched by IGBT. The gun control and filament circuit power supply are performed through high frequency isolated transformer. The accelerating tube is performed from sectional welded metal ceramics insulator (ceramics 22 XC with diameter 95/85 mm). The accelerator test results are presented.

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