Author: Ramsdorf, A.Yu.
Paper Title Page
FRYOR02 Status Report on Physics Research and Technology Developments of Electron String Ion Sources of Multicharged Ions 208
 
  • E.E. Donets, D.E. Donets, E.D. Donets, S.V. Gudkov, A.Yu. Ramsdorf, V.V. Salnikov, V.B. Shutov
    JINR, Dubna, Moscow Region, Russia
  
  Electron String Ion Source (ESIS) "Krion-2" (JINR) is the first and now only ion source of such type in the world. ESIS is a sophisticated modification of Electron Beam Ion Source (EBIS) working in a reflex mode of operation under very specific conditions. The main results, which were achieved during recent years are: Au54+ ion beams with intensity 5x107 particle per pulse were first produced, ion-ion cooling technology was demonstrated to prove its efficiency for a thermal ion loss reduction and Krion-2 was used for production and injection of Xe42+ ion beam into LINAC injector of JINR synchrotron Nuclotron, where the beam was first accelerated to relativistic energy in March 2010 [1-3]. At the present time an essential progress was achieved in construction of the new 6 Tesla ESIS, which is expected to be the full scale prototype of a highly charged ion source for NICA - the new JINR accelerator complex. It is foreseen in the NICA project that new ESIS will provide Au32+ beams with ion yield about 2x109 ppp. However, a project parameters of new Krion-6T ion source allow to expect production of even more highly charged states of heavy elements, up to Au69+ in terms of gold. In this case new Krion-6T ESIS is planned to be used on operating JINR "Nuclotron" facility in near future for experiments with an extracted accelerated gold ion beams on a fixed target.
*[1] D.E. Donets, et all, 2010 JINST 5 C09001;
http://iopscience.iop.org/1748-0221/5/09/C09001.
**[2] D.E. Donets, et all, RSI 80, 063304 (2009).
***[3] D.E. Donets, et all, RSI 83, 02A512 (2012).