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製品とサービス

X線レンズ

Meet us at:
SRI 2018 (International Conference on Synchrotron Radiation Instrumentation)
11-13.6.2018, Taipei International Convention Center

Recent updates:
X-ray optic products posters (For SRI 2018, 6.2018, coming soon))
X-ray optic products brochure (For XNPIG 2017, 9.2017)

The X-ray Compound Refractive Lens, CRL, developed by Karlsruhe Institute of Technology (KIT) is a refractive lens focusing monochromatic hard X-rays to line or point focus.

1. Compound refractive lens (CRL)


As the refractive index of X-ray in materials is slightly smaller than 1, the X-ray lens has a biconcave lens element and each focusing element has a very small focal length. By aligning many pieces of the elements linearly, the focal length can significantly reduced down to a several cm range.


With more lens elements, the focal length becomes shorter

2. X-ray lens standard design



Lens type VHVH focusing (designs #1357, #1405)
Point focusing is achieved by arranging a pair of one-directional focusing lens rows crossed under 90°.
Suitable for energy > 5 keV (monochromatic), focal length > several cm. Lens physical aperture up to 1,500 µm and focal point size down to 1 µm x 1 µm. 0° lens holder optional. Fresnel lens type also available.

3. Focusing example


Focusing example at BL10XU, SPring-8, Japan.


Lens type: former standard design #1092, point focusing. Courtesy of Dr Yasuo Ohishi, JASRI/SPring-8
Shigehiko Tateno, Kei Hirose, Yasuo Ohishi, Yoshiyuki Tatsumi
Science 330, 359 (2010) DOI: 10.1126/science.1194662
The Structure of Iron in Earth‘s Inner Core

4. Comparison with other focusing elements


In principal, you can expect to reduce the cost and set-up time compared to other X-ray optical elements.

Comparison with FZP

- Using refractive effect, no diffraction different order light is expected (even in Fresnel type lenses).

- Large aperture lenses available (up to 2,000 µm, depending on the design)

Comparison with KB Mirrors

- Optic axis does not change with the lens

- You can expect a far shorter set-up time. See the X-ray optic products brochure for the required alignment precision of the lens stage.

- You only need to prepare one location for the lens plate to make a point focus.

Unique strengths of CRL

- Multiple lens rows with different arrangements for different optical set-ups on single substrate.

- The lens is delivered after the optimisation for your set-up, depending on e.g. source distance, photon energy, requested focal length and incident beam size.

5. Manufacturer


Karlsruhe Institute of Technology (KIT) / IMT has a long experience in the LIGA micro fabrication technology and has applied it to manufacture X-ray optic products. ASICON Tokyo Ltd. serves as its local distributor in Japan, South Korea and Taiwan.

X-ray optic products brochure

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