• Ray tracing studies of a complete plane grating monochromator beam line

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      https://www.ias.ac.in/article/fulltext/pram/042/01/0065-0077

    • Keywords

       

      Synchrotron radiation; ray tracing; image characteristics

    • Abstract

       

      Optical design of a plane grating monochromator beam line for X-ray spectroscopic studies to be installed on INDUS-1 is studied using ray tracing technique. The main components of the beam line are pre- and post-elliptical mirrors and the plane mirror-grating dispersing system. The ideal positions of the optical components are decided by using our analytical formulation of the Riemer’s kinetic principle for reflecting synchrotron radiation onto the same spot of the dispersing grating. The program is developed indigenously and can be used on a PC. The tangent error and microroughness of the mirrors is explicitly accounted for in the program. The wavelength dependent absorption of radiation at the different reflecting surfaces is also included for calculations of the optical throughput. The dependence of the final image line shape and resolution on various beam line parameters is calculated. The results are useful in deciding the tolerances of the various beam line components and their positions.

    • Author Affiliations

       

      V S Edlabadkar1 2 Ashok Pimpale1

      1. Inter University Consortium for DAE Facilities, University Campus, Indore - 452 001, India
      2. G. N. College of Science, Ballarpur - 442 701, India
    • Dates

       
  • Pramana – Journal of Physics | News

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