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X-ray inclined lens.
1Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 18040 Praha 8, Czech Republic.
Journal of Synchrotron Radiation
|May 12, 2006
Summary
This study introduces the inclined lens, a simple crystal monochromator groove for horizontal X-ray beam focusing. While efficiency is limited, its design offers a straightforward approach to sagittal focusing.
Area of Science:
- Optics
- Crystallography
- X-ray physics
Background:
- Crystal monochromators are essential for X-ray experiments.
- Existing focusing methods can be complex.
- A need exists for simpler X-ray focusing solutions.
Purpose of the Study:
- To define and analyze the 'inclined lens' concept for X-ray beam focusing.
- To explore the principles of sagittal focusing using inclined diffraction.
- To propose design considerations for an inclined lens monochromator.
Main Methods:
- Theoretical analysis based on the dynamical theory of inclined diffraction.
- Calculation of the precise groove shape for focusing.
- Proposal of methods to control beam vertical dimensions.
Main Results:
- The inclined lens, a parabolic groove in a crystal, provides horizontal (sagittal) X-ray beam focusing.
- Focusing is achieved through sagittal deviation of diffracted X-rays.
- The design's primary advantage is its simplicity.
Conclusions:
- The inclined lens offers a simple method for sagittal focusing of X-ray beams.
- Design calculations for the groove shape are presented.
- Techniques to minimize the beam's vertical dimension are proposed.