JINR synchrophasotron operation and improvement (the second quarter of 1978)

The operation of the Dubna synchrophasotron in the 2nd quarter of 1978 when accelerating deuterons, C, O and Ne nuclei is presented. The KRION electron-beam source with improved characteristics has been used as a source of nuclei. This permits a marked increase of the nuclei intensity to be obtained at its output. The carbon, oxygen and neon nuclei are accelerated. The CKM-200 streamer chamber has been first exposed to an extracted beam of Ne nuclei with an energy of 4.1 GeV/nucleon. In order to get information on the accelerated beams of low intensity nuclei, new transmitters of two types are used. To improve the characteristics of the operating magnetic field, the work has been in progress during the synchrophasotron shutdown. A new system of geodetic measurements is used for more effective control of the position of the synchrophasotron electromagnet. Data on vertical motions of the electromagnet, obtained in two runs, are presented