بهینه‌سازی بازتابش آینه‌های نانو - چند لایه‌ای متناوب پرتو ایکس در سه انرژی لبه جذبTi-Kα و Co-Kα و Cr-Kα

Authors

  • اتوکش, محمد دانشکده مهندسی انرژی دانشگاه صنعتی شریف، تهران
  • خسروآبادی, حسین دانشکده فیزیک دانشگاه صنعتی شریف، تهران . شتاب‌دهنده سزامی، الان، اردن
  • قویدل, حسن دانشکده مهندسی انرژی دانشگاه صنعتی شریف، تهران
Abstract:

In this paper, a practical simulation method for optimizing of x-ray reflection of nano-multilayer mirrors in three different edge energies: Cr-Kα, Co-Kα, and Ti-Kα is discussed in order to obtain the most reflection based on quarter-wave thickness method (QW). In this method, the reflected x-ray will have a constructive interference, and a peak, called Brag peak, will appear in reflection curve when the tickness of the layer is an odd multiple of the quarter-wave thickness. The quarter-wave thickness is dependent to on the angle and energy of the entrance photon beam. In the mentioned edge energies, for different nano-multilayer mirrors, and for incident angle ranges from  0.5 to 8 degrees, the QW thikness for each layer is estimated and the Brag peak reflected intensity was simulated for each angle by the IMD computational code. The details shows that the optimal reflection is accessible by plotting Brag peak reflection curves based on the related angles.

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Journal title

volume 17  issue 2

pages  331- 336

publication date 2017-08

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