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TUPS08 System for Measurement of Magnetic Field Line Straightness in Solenoid of Electron Cooler for COSY electron, vacuum, laser, optics 107
 
  • M. I. Bryzgunov, V. N. Bocharov, A. V. Bubley, M. G. Fedotov, V. V. Parkhomchuk, V. B. Reva
    BINP SB RAS, Novosibirsk
  Construction of measurement system is presented. The system is based on special magnetic sensor (compass) with a mirror attached to the compass needle. The needle with the mirror are suspended on gimbal suspension and can rotate in two directions. Measuring reflected laser beam deflection one can measure field line straightness with accuracy up to 10-6 rad. The compass is installed inside vacuum volume of the cooling section on special carriage that moves on rail along the section via special tape. To calibrate the compass special test bench was made. The calibration procedure allows to determine and to diminish compass inaccuracy appeared during manufacture and assembling. Results of calibration of the compass on the test bench are presented.  
 
TUPS13 Electron Cooler for NICA Collider electron, acceleration, gun, cathode 125
 
  • S. Yakovenko, E. V. Ahmanova, A. G. Kobets, I. N. Meshkov, R. Pivin, A. Yu. Rudakov, A. V. Smirnov, N. D. Topilin, Yu. A. Tumanova
    JINR, Dubna, Moscow Region
  • A. A. Filippov
    Allrussian Electrotechnical Institute, Moskow
  • A. V. Shabunov
    JINR/VBLHEP, Moscow
  The electron cooling system at electron energy up to 2.5 MeV for the NICA collider is under design at JINR. The electron cooler is developed according to the available world practice of similar systems manufacturing. The main peculiarity of the electron cooler for the NICA collider is using of two cooling electron beams (one electron beam per each ring of the collider) that never has been done before. The acceleration and deceleration of the electron beams is produced by common high-voltage generator. The conceptual design of the electron cooling system has been developed. The cooler consist of three tanks. Two of them contain acceleration/deceleration tubes and are immersed in superconducting solenoids. The third one contains HV generator, which design is based on voltage multiplying scheme