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Howell, D.F.

Paper Title Page
MOPEA052 Sub-micrometer Resolution Transverse Electron Beam Size Measurement System based on Optical Transition Radiation 193
 
  • A.S. Aryshev, N. Terunuma, J. Urakawa
    KEK, Ibaraki
  • S.T. Boogert, V. Karataev
    JAI, Egham, Surrey
  • D.F. Howell
    OXFORDphysics, Oxford, Oxon
 
 

Optical Transition Radiation (OTR) appearing when a charged particle crosses a boundary between two media with different dielectric properties has widely been used as a tool for transverse profile measurements of charged particle beams in various facilities worldwide. The resolution of the conventional monitors is defined by so-called Point Spread Function (PSF) dimension - the source distribution generated by a single electron and projected by an optical system onto a screen. In our experiment we managed to create a system which can practically measure the PSF distribution. We demonstrated that is it is non-uniform. In this paper we represent the development of a novel sub-micrometer electron beam profile monitor based on the measurements of the PSF structure. The visibility of the structure is sensitive to micrometer electron beam dimensions. In this report we shall represent the recent experimental results. The future plans on the optimization of the monitor will also be presented.