PROBLEMS WITH SYNCHROTRON RADIATION PHASE CONTRAST IMAGING OF MICRO-OBJECTS IN CRYSTALS

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Abstract

Problems in experimental study of real crystal structures using phase-contrast imaging with synchrotron radiation (SR) are discussed and methods for their solution are proposed. The experiment was conducted at the Pohang Light Source, in Pohang City, Republic of Korea. A diamond crystal was examined. The capabilities of the method in studying weak changes in crystal density under conditions of spatially non-uniform beam intensity, beam statistical noise and detector imperfections are analyzed. Images of various shapes and sizes were obtained, showing the presence of defects. However, a more detailed analysis is required to identify the defects.

About the authors

T. S Argunova

Ioffe Institute, Russian Academy of Sciences

Email: argunovat@mail.ioffe.ru
St. Petersburg, Russia

V. G Kohn

National Research Centre "Kurchatov Institute"

Moscow, Russia

J. -H Lim

Pohang Light Source

Pohang, South Korea

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