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X-ray Imaging Optics Lab
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The lab develops X-ray microscopes using optical elements that form images with X-rays.
AboutAbout the lab
Seeing phase differences with X-ray microscopes.
The X-ray Imaging Optics Lab (Watanabe Lab) conducts research on developing X-ray microscopes.
It uses optical elements for forming images with X-rays, such as zone plates and Wolter mirrors.
The lab also works on imaging the state of a sample by phase contrast and observing it in three dimensions.
In the graduate school, the lab is listed under the field of Bio-Medical Engineering in the Electronic and Physical Engineering Subprogram of the Degree Program in Applied Physics and Engineering.
Key terms
- Zone plate
- An optical element that focuses X-rays with concentric stripes to form an image. It serves as the lens of an X-ray microscope.
- Wolter mirror
- A mirror that reflects X-rays to form an image. It is used for imaging in X-ray microscopes.
- Phase contrast
- A method that converts the shift in the wave (phase) of X-rays passing through a sample into differences in image brightness.
ResearchResearch themes
The lab is developing X-ray microscopes that use zone plates and Wolter mirrors. As methods of observation with X-rays, it works on imaging by phase contrast and on spectroscopic observation using soft X-rays.
*Illustrative imagePhase imaging with a zone plate X-ray microscope
Using an X-ray microscope with a zone plate, the lab images phase differences in a sample from schlieren images. It also works on phase tomography, which reconstructs the phase in three dimensions from these images.
*Illustrative imageDeveloping a soft X-ray spectroscopic microscope
Using a Wolter mirror, the lab is developing a microscope that can perform spectroscopy while observing a sample with soft X-rays.
MembersFaculty
- LecturerNorio Watanabe
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Lab based Soft X-ray Microscope- SiriusXT” Ananya Vatsa / CC BY-SA 4.0 (cropped)
- Phase imaging with a zone plate X-ray microscope: “U.S. Department of Energy - Science - )” U.S. Department of Energy from United States / Public domain (cropped)
- Developing a soft X-ray spectroscopic microscope: “FOXSI main x-ray optics” NASA/S. Christe / Public domain (cropped)
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