Development of power supplies systems for CW negative ion sources at BINP
A series of Surface-Plasma negative ion Sources (SPSs) were developed and produced at BINP in the last 30 years. The energy of H- beams, delivered by SPS is varied in the region 10 - 120keV, the beam current – in the range from several mA CW up to several Amps in the long-pulsed operation .
A typical Power Supply system (PS) of the ion source provides the powering and controlling of SPS circuits voltage, current and timing. The high-current SPS uses a cesium deposition for H- yied enhancing and for the co-extracted electrons flux decrease. As a result of cesium deposition the specific of SPS is the occasional HV breakdowns in ion optical system and an increased level of electric noise in the discharge and ion optical system circuits. This noise is inherent for the discharges in magnetic field. An adequate PS and control systems were designed and manufactured in BINP workshop for the SPS reliable operation under these conditions . The report describes the principles, schematic and design solutions of PS, produced at BINP for SPSs.
. Yu.I. Belchenko, V.I. Davydenko,P.P. Deichuli et al. Studies of ion and neutral beam physics and technology at the Budker Institute of Nuclear Physics SB RAS. Physics - Uspekhi, 61, #6, (2018); doi: 10.3367/UFNe.2018.02.038305
. P. V. Zubarev, A. D. Khilchenko, A. N. Kvashnin, D. V. Moiseev, E. A. Puriga A.L.Sanin and V.Ya.Savkin. Computer System for Unattended Control of Negative Ion Source. AIP Conf. Proc. 1390, 634 (2011); doi: 10.1063/1.3637435