Journal of Korean Vacuum Science & Technology

The Korean Vacuum Society (한국진공학회)
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Simulation of a Polarimeter for a Spin-Polarized Positron Beam

  • Kim, J.H. (School of Chemical Engineering, Seoul National University) ;
  • Saito, F. (The institute of Physical and Chemical Research(RIKEN)) ;
  • Suzuki, N. (The institute of Physical and Chemical Research(RIKEN)) ;
  • Wei, L. (The institute of Physical and Chemical Research(RIKEN)) ;
  • Nagashima, Y. (Institute of Physics, Graduate School Arts and Sciences, University of Tokyo) ;
  • Kurihara, T. (Institute of Materials Structure Science(IMMS), High Energy Accelerator Research Organization(KEK)) ;
  • Goto, A. (The institute of Physical and Chemical Research(RIKEN)) ;
  • Itoh, Y. (The institute of Physical and Chemical Research(RIKEN)) ;
  • Lee, Y.S.Hyodo, T. (Center for Science in Nanometer Scale(CSNS), Seoul National UniversityInstitute of Physics, Graduate School Arts and Sciences, University of Tokyo)
  • Published : 2002.09.01
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Abstract

A performance of a new positron polarimeter is investigated by simulation using a charged-particle trajectory program. The results of the ray tracing are presented along with the details of the design parameters and projected system performance. A ray tracing analysis indicates that this design is capable of effectively transmitting positrons at beam energies varying from 0.1 to 30 keV within the beam diameter of 2-6mm. However, the observed reflection of the positrons(lower than 2 keV) at 12 kGauss indicated that further refinement of beam design is needed to produce a better positron polarimeter.

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