Author: Fedin, P.A.
Paper Title Page
TUPSA41 Effect of Tin Ion Implantation on the Properties of Amorphous Ge2Sb2Te5 Thin Films 230
 
  • A. Sitnikov, P.A. Fedin, A.V. Kozlov, T. Kulevoy, D.N. Selesnev
    ITEP, Moscow, Russia
  • D.A. Dronova, P. I. Lazarenko, A. Sherchenkov, A.O. Yakubov
    National Research University of Electronic Technology, Moscow, Russia
  • S. A. Kozyukhin
    Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
  
  Funding: This study was supported by RFBR (project 17-03-00450).
Alloys along the quasi-binary line between Sb2Te3 and GeTe with compositions (GeTe)m(Sb2Te3)n, in particular Ge2Sb2Te5, have been intensely studied and are used in the state-of-the-art PCM devices. However, properties of this thin film materials are not optimal and should be improved. In this work, we investigated the effect of tin ion implantation on the properties of amorphous Ge2Sb2Te5 thin films. The Sn ion implantation was done on Multipurpose Test Bench (MTB)* at NRC "Kurchatov Institute"-ITEP. The MTB consists of MEVVA type ion source, electrostatic focusing system, the system of current and beam profile measurements. The charge spectrum of the Sn beam was measured by the time-of-flight method, the beam profile as well as beam current were also measured. The beam's accelerating voltage was calculated by SRIM code in order to implant ions on the required film‘s depth. Tin ions were implanted into GST films at 40 kV accelerating voltage. Effect of Sn ion implantation (1 at. %) on the electrical properties of magnetron GST thin films was investigated.
*S.Barabin, V.Batalin, A.Kozlov, T.Kulevoy, et.al., Multifunctional Test-Bench for Heavy Ion Sources, Proceedings DIPAC 2003, Mainz, Germany, p.158. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA41  
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TUPSA54 Multichannel Injection Complex for the BELA Project 259
 
  • A.V. Ziiatdinova, P.A. Fedin, T. Kulevoy, A.A. Nikitin, S.V. Rogozhkin
    ITEP, Moscow, Russia
  • P.A. Fedin, T. Kulevoy, A.V. Ziiatdinova
    NRC, Moscow, Russia
  • T. Kulevoy
    MEPhI, Moscow, Russia
  
  BELA (Based on ECR ion source Linear Accelerator) project is under development in NRC "Kurchatov Institute" - ITEP. Injection complex of the accelerator based on two ion sources is intended for different tasks and has a multichannel transport system. One of the tasks is double irradiation simulation experiments for reactor materials. Heavy ion beam and light ion beam from different ion sources and with different energy will irradiate a target simultaneously. Beam dynamics simulations were carried out for both iron beam Fe10+ and H1+ and He1+ beams. The paper includes injection complex layout and results of beam dynamic simulation in transport system as well as SIMS simulation of ions interaction with a target material.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA54  
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TUPSA61 Development of the Ion Beams HIPR-1 Transport Channel for Ion Energy Losses Measurement in Plasma Target 276
 
  • E. Khabibullina, P.A. Fedin, R. Gavrilin, A. Golubev, A.V. Kantsyrev, T. Kulevoy, S.A. Visotski
    ITEP, Moscow, Russia
  • P.A. Fedin, T. Kulevoy
    NRC, Moscow, Russia
  • T. Kulevoy
    MEPhI, Moscow, Russia
  
  The research of the processes occurring during interaction of heavy ions with plasma is carried out on the Heavy Ion RFQ HIP-1 (heavy Ion Prototype) in the ITEP. The HIPr-1 is a heavy ion RFQ linac which accelerates ion beams generated by either MEVVA ion source or duoplasmatron. It provides accelerated beam of ions from C+ to U4+ with energy of 101keV/n and several mA of current. Gas-discharge plasma target which was produced in ITEP is used for the measurement of ion energy losses in the ionized matter. The diaphragms at the entrance and exit of the plasma target provide the necessary pressure into the transport channel (which is 10-6 mbar), while the gas pressure in the target equals to several mbar. The design of the beam transport channel for performing experiments to determine the energy losses in plasma was developed based on the beam dynamics simulation. According to the obtained results the first successful tests on the HIPr-1 were held.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA61  
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