Related Experiment Video
Updated: May 20, 2026
10:12
Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples
Published on: June 19, 2018
Toward the diffraction limit with transmissive x-ray lenses in astronomy
Christoph Braig1, Peter Predehl
1Friedrich-Schiller-Universität, Institut für Angewandte Physik, Jena, Germany. christoph.braig@uni‐jena.de
Applied Optics
|July 12, 2012
Summary
We present an analytical method for designing scalable x-ray lenses, optimizing their wideband imaging for energies between 1 to 20 keV. Hybrid lens designs offer enhanced efficiency for high-energy astronomy applications.
Area of Science:
- Optics and Photonics
- Astrophysics Instrumentation
Background:
- X-ray optics are crucial for high-energy astronomy.
- Scalable lens designs are needed for advanced telescopes.
- Wideband imaging properties require careful optimization.
Purpose of the Study:
- To develop an analytical approach for designing x-ray lenses.
- To compare and optimize wideband imaging properties.
- To investigate materials for diffraction-limited high-energy astronomy.
Main Methods:
- Analytical approach based on the parabolic wave equation.
- Comparison and optimization of refractive, diffractive, and achromatic lenses.
- Investigation of low-Z materials (e.g., polycarbonate, Si) for lens cores and Fresnel components.
Main Results:
- Demonstrated an analytical method for scalable x-ray lenses (1-20 keV).
- Identified optimal wideband imaging properties for specific spectral ranges.
- Evaluated material suitability for diffraction-limited astronomy.
Conclusions:
- Properly designed hybrid x-ray lens combinations enhance telescope efficiency across a broad band.
- Hybrid designs minimize the impact of material absorption.
- This approach is suitable for developing advanced x-ray telescopes.
Related Concept Videos
02:18X-ray Crystallography
The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
01:29Determination of Crystal Structures
In the late 1800s, the revelation that light extended beyond visible wavelengths led to the discovery of X-rays by Wilhelm Roentgen. Recognized as high-energy electromagnetic radiation with short wavelengths, X-rays prompted exploration into their interaction with crystals. Max von Laue proposed in 1912 that the periodic arrangement of atoms, ions, or molecules in crystals would cause them to diffract X-rays, a hypothesis confirmed through experiments with copper sulfate and zinc sulfide...
01:18Imaging Biological Samples with Optical Microscopy
Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
01:10X-ray Diffraction of Biological Samples
X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are scattered by the electron clouds around the sample atoms. The X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal crystal...
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are scattered by the electron clouds around the sample atoms. The X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal crystal...
01:24X-ray Imaging
German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with X-rays, and by 1900, X-ray was widely...
01:37Super-resolution Fluorescence Microscopy
Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been developed.