Analytical Sciences

Numerical Simulation of C/C/C Planar X-ray Waveguides

Pavel KARIMOV,*^,** Jun KAWAI,* and Ernst Z. KURMAEV**

*Department of Materials Science and Engineering, Kyoto University, Kyoto 606-8501, Japan
**Institute of Metal Physics, Russian Academy of Sciences, Urals Division, S. Kovalevskaya Str. 18, Yekaterinburg 620219, Russia

A numerical simulation was done to check the possibility of using planar C/C/C multilayers with density contrast 0.2 and 0.7 g/cm³ as an X-ray waveguide. After an optimization procedure, suitable waveguide layer thicknesses were found which provide a high degree of resonant standing wave field intensity enhancement in the core layer at incident beam energy of 13 keV. The obtained results were compared with those of the Mo/Be/Mo waveguide, whose high waveguiding capability at the same energy value was reported in the 1990s. The comparison shows that standing wave field intensity resonant enhancement provided by C/C/C planar multilayers is very high and, consequently, a guided beam can be well detected.

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