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      https://www.ias.ac.in/article/fulltext/pram/063/01/0175-0181

    • Keywords

       

      Neutron diffractometer; bent crystal monochromator; monochromatic focusing

    • Abstract

       

      In a conventional diffractometer having single monochromator, only one position, parallel position, is used for the diffraction experiment (i.e. detection) because the resolution property of the other one, anti-parallel position, is very poor. However, a bent perfect crystal (BPC) monochromator at monochromatic focusing condition can provide a quite flat and equal resolution property at both parallel and anti-parallel positions and thus one can have a chance to use both sides for the diffraction experiment. From the data of the FWHM and the Δd/d measured on three diffraction geometries (symmetric, asymmetric compression and asymmetric expansion), we can conclude that the simultaneous diffraction measurement in both parallel and anti-parallel positions can be achieved.

    • Author Affiliations

       

      Yong Nam Choi1 Shin Ae Kim1 Sung Kyu Kim1 Sung Baek Kim1 Chang-Hee Lee1 Pavel Mikula2

      1. HANARO Center, Korea Atomic Energy Research Institute, Yuseong, Daejeon - 305-600, Korea
      2. Nuclear Physics Institute, Rez - 25068, Czech Republic
    • Dates

       
  • Pramana – Journal of Physics | News

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