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Kolchevsky Nikolay Nikolaevich

Associate Professor of the Department

Candidate of Physical and Mathematical Sciences, Associate Professor

In 1992, he entered Belarusian State University at the Faculty of Radiophysics and Electronics. During his studies at the university, he obtained specialities in radiophysics and electronics (BSU), economic cybernetics (BSU), and translator (international courses “Continent”). From 1997 to 2000, he was a postgraduate student at the Department of Physical Electronics, and in 2000 he successfully completed postgraduate studies, defending his Candidate’s dissertation on the topic “Formation of microbeams of X-ray radiation by a multi-element refractive lens” and was awarded the degree of Candidate of Physical and Mathematical Sciences. In 2005, he was awarded the academic title of Associate Professor. His main scientific achievements are related to the development of X-ray waveguides based on glass microcapillaries and refractive X-ray lenses. A unique design of a refractive X-ray lens capable of forming images of objects with submicron resolution has been developed. Research in the field of refractive X-ray optics, conducted jointly with the SPring-8 scientific centre (Japan), led to the creation of the world’s first X-ray microscope.

Research interests:

  • X-ray optics and X-ray methods of material research;
  • methods of analysis of micro- and nanostructures and properties of solids;
  • digital methods of recording and processing measurement results;
  • computerised teaching aids.

Main publications:

  1. Kolchevsky N. N., Petrov P. V. Investigation of the spectral properties of an adiabatic microcapillary lens // Proceedings of the National Academy of Sciences of Belarus. Series of Physical and Mathematical Sciences, 2010, No. 2, pp. 83-88.
  2. Kolchevsky N. N., Novikov D. V., Petrov P. V. 3-D array of X-ray lenses // Proceedings of the VIII International Scientific and Technical Conference “Quantum Electronics,” Minsk, November 22-25, 2010, p. 150.
  3. N., Petrov P.V. Three-dimensional array of refractive X-ray lenses // International Conference on the Application of X-ray, Synchrotron Radiation, Neutrons and Electrons for Materials Research, 2009, Moscow.
  4. Petrov P.V., Bolshakov A.A., Kolchevsky N.N. Calculation of the profile of an adiabatic microcapillary lens // Bulletin of BSU. Series 1: Physics. Mathematics. Informatics. 2009, No. 1.
  5. Kolchevsky N.N., Petrov P.V. Spectral properties of an X-ray refractive lens // XIX All-Russian School-Seminar “X-ray and Electronic Spectra and Chemical Bonding,” Izhevsk, 2007 – p. 122.
  6. Kolchevsky N.N. Optical system of two refractive X-ray lenses // Proceedings of the symposium “Nanophysics and Nanoelectronics,” Nizhny Novgorod, 2006.
  7. I. Dudchik, N. N. Kolchevsky, F. F. Komarov, M. A. Piestrup, J. T. Cremer, C. K. Gary, H. Park, and A. M. Khounsary Microscope using an X-ray tube and a bubble compound refractive lens // Appl. Phys. Lett. 86, 2005.
  8. Application of a refractive bubbles-in-capillary X-ray lens to X pinch experiments / S.A. Pikuz, V.E. Asadchikov, K.M. Chandler, D.A. Hammer, Yu.I. Dudchik, N.N. Kolchevsky, F.F. Komarov, M.D. Mitchell, A.V. Popov, T.A. Shelkovenko, R.A. Senin, I.A. Suloev, A.V. Vinogradov // Rev. Sci. Instrum. Vol 74(3), 2003.
  9. Yu.I. Dudchik, N.N. Kolchevsky, F.F. Komarov “Refractive optics for X-rays” // Selected scientific works of BSU: In 7 vols., Vol. 4 Physics, Minsk: BSU, 2001, pp. 73-89.
  10. Kohmura, K. Okada, A. Takeuchi, H. Takano, Y. Suzuki, T. Ishikawa, T. Ohigashi, and H. Yokosuka, “High spatial resolution hard X-ray microscope using X-ray refractive lens and phase contrast imaging experiments” // Nucl. Instrum. Meth. Phys. Res, A, 467-468(2001) 881.
  11. Glass capillary X-ray lens: fabrication technique and ray tracing calculations / Yu.I. Dudchik, N.N. Kolchevsky, F.F. Komarov et al. // Nucl. Instrum. Meth. A. – 2000. – Vol. 454. – P. 514-521.
  12. X-ray focusing test and X-ray imaging test by a microcapillary X-ray lens at an undulator beamline / Y. Kohmura, M. Awaji, Y. Suzuki, T. Ishikawa, Yu.I. Dudchik, N.N. Kolchevsky, F.F. Komarov // Rev. Sci. Instrum. – 1999. – Vol. 70, No. 11. – P. 4161-4167.
  13. Dudchik Yu.I., Kolchevsky N.N. A microcapillary lens for X-rays // Nucl. Instrum. Meth. A. – 1999. – Vol. 421. – P. 361-364.

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