Author: Kantsyrev, A.V.
Paper Title Page
TUPSA30
 Analysis of the Magnetic Field Distribution of PMQ Lenses for PRIOR Setup  
 
  • V.A. Panyushkin, A.V. Bogdanov, A. Golubev, A.V. Kantsyrev, V. Skachkov
    ITEP, Moscow, Russia
  • A. Golubev
    MEPhI, Moscow, Russia
  • P.M. Lang, M.E. Rodionova, L. Shestov, D. Varentsov, K. Weyrich
    GSI, Darmstadt, Germany
  
  Funding: Joint Helmholtz-ROSATOM FAIR-Russia Research Centre (HGF-IVF-IK-Ru-002)
As part of the FAIR project, HEDgeHOB collaboration involves developments of PRIOR* proton-radiographic facilities, one of the purposes of which is to study the state of matter in extreme conditions. In the currently in GSI (Darmstadt, Germany), prototype of PRIOR proton microscope setup is developing, this setup designed for the use of proton beam with energy of 4.5 GeV. Magnetic optics of PRIOR proton microscope forming section consists of four quadrupole lenses created on the basis of permanent magnets (PMQ). For best quality (linearity, magnetic axis position, angle of median plane) of the magnetic field of quadrupole lenses and a full-scale setup simulation is necessary to measure the magnetic field inside the lenses. For the measurement of the magnetic field (radial component of the magnetic field) of quadrupole lenses are designed and developed magnetic field scanner. Scanning of the magnetic field is performed on cylindrical surface near the inner surface of PMQ lenses. Based on the results of scanning the radial component of the magnetic field will be carried out calculations of the mathematical model (developed in ITEP)**, which describes the distribution of the magnetic field at any point within the aperture of the lens. In this work presents the results of the calculation of all components of the magnetic field, determining the position of the magnetic axis,harmonic analysis and the analysis of non-linearity of the magnetic field for PRIOR PMQ lenses.
*D. Varenstov et.al.; PRIOR for GSI and for FAIR; 4th International Workshop on HEPM, 2013
**V.S. Skachkov et.al.; REPM Quadrupole for Proton Microscopy; 2th International Workshop on HEPM, 2010
 		 
 
WEX02
 Activities on Proton Radiography at ITEP  
 
  • A. Golubev, A.V. Kantsyrev
    ITEP, Moscow, Russia
  • A. Golubev
    MEPhI, Moscow, Russia
  
  The first activity on proton beam application to radiography was started about 45 years ago. Success of proton radiography was based on main characteristics the thickness of transmitted object, a spatial resolution which were significantly better then for X-ray. The possibility of the experiments executed according to the scheme "proton-object-detector" are limited with proton multiple scattering in object. In the end of 90-s in the USA it was shown that negative effects of multiple scattering could be suppressed by placing a system of magnetic lenses between an object and detector. Area of application for radiographic setup with protons becomes wider in comparison with traditional X-ray system. Use of proton radiography it becomes possible to study dynamic objects as protons could be removed from the accelerator by short pulses. In Russia first experiments on radiography with accelerated charged hadrons were carried out on the TWAC-ITEP accelerator facility in 2003. In those experiments a beam of carbon ions with energy of 200MeV/u without a magneto-optical system was used for radiographic purpose. From 2005 at ITEP operated the proton radiography facility using the magneto-optical system with different parameter of magnification "-1", "-4" and "-8". The review of the experimental activity on proton radiography аt ITEP is presented.  
slides icon Slides WEX02 [5.201 MB]  
 
WECA02 Radiobiological Research with Charged Particles Beams in ITEP 128
 
  • N.V. Markov, A. Golubev, A.V. Kantsyrev, I. Roudskoy
    ITEP, Moscow, Russia
  • A. Golubev
    MEPhI, Moscow, Russia
  
  Radiobiological researches with heavy ions have been started at ITEP in 2006 on unique heavy ion accelerating facility ITEP-TWAC. The main purpose of these researches is study of the biological efficiency of carbon ions for different types of biological objects, such as tumor and normal cells, in the framework of the development of heavy ion therapy for cancer treatment in Russia. Another possible area of application of this research is the space radiobiology, studying stochastic and deterministic effects of ionizing radiation in the space environment on human. In this work the experimental setup for radiobiological research with heavy ions in ITEP, the dosimetry system for dose measurements and the results of the radiobiological researches with carbon ions are presented.  
slides icon Slides WECA02 [16.246 MB]  
 
WEPSB25 PRIOR Proton Microscope 214
 
  • D. Varentsov, P.M. Lang, M.E. Rodionova, L. Shestov, K. Weyrich
    GSI, Darmstadt, Germany
  • A.V. Bakhmutova, A.V. Bogdanov, A. Golubev, A.V. Kantsyrev, N.V. Markov, V.A. Panyushkin, A.I. Semennikov, V. Skachkov
    ITEP, Moscow, Russia
  • C.W. Barnes, F.G. Mariam, F.E. Merrill, C. Wilde
    LANL, Los Alamos, New Mexico, USA
  • S.V. Efimov, Y. Krasik, O. Oleg
    Technion, Haifa, Israel
  • A. Golubev
    MEPhI, Moscow, Russia
  • S. Udrea
    TU Darmstadt, Darmstadt, Germany
  • A.N. Zubareva
    IPCP, Chernogolovka, Moscow region, Russia
  
  Funding: Joint Helmholtz-ROSATOM FAIR-Russia Research Centre (HGF-IVF-IK-Ru-002)
The new proton radiography facility PRIOR* (Proton microscope for FAIR) was developed at SIS-18 accelerator at GSI (Darmstadt, Germany). PRIOR setup is designed for measurement, with high spatial resolution up to 10 mkm, of density distribution of static and dynamic objects by using a proton beam with energy up to 4.5 GeV. The magnetic system of the PRIOR beam-line consists of two sections. The first, matching section, contains electromagnetic-quadruple lenses and provides formation of a proton beam for the objects imaging task (beam size, angular distribution). The second section is a magnification (K ~4) section that consists of four Permanent Magnet Quadruples (PMQ) lenses. Tungsten collimators, installed at central plane of magnification section, provides regulation of contrast of the proton-radiographic images. Investigated object installed between first and second section. The registration system for static experiments consists of CsI scintillator and plastic scintillator (Bicron BC-412) for dynamic one with two types of intensified CCD cameras: PCO DiMAX and PCO DicamPro. In the first experiments with static objects with 3.6 Gev proton, was demonstrated a spatial resolution of 30 mkm. Dynamic commissioning was performed with target based on underwater electrical wires explosion with electrical pulse with current amplitude of ~200 kA and time duration of few microseconds.
* Merrill F.E. et al., Proton microscopy at FAIR, AIP Conf. Proc. 1195, 2009, p.667