Application of a combined system of polycapillary x-ray lens and toroidal mirror in micro-x-ray-absorption fine-structure facility
- Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Beijing Normal University, Beijing 100875 (China)
A micro-x-ray-absorption fine-structure facility based on a monolithic half focusing polycapillary x-ray lens (MHFPXRL), a toroidal mirror, and synchrotron radiation is proposed. The synchrotron radiation is focused by using a combined system of a MHFPXRL and a toroidal mirror. At 8.0 keV, the synchrotron radiation beam with a 2.3x26-mm{sup 2} area is first focused into a beam spot with a 0.9x0.3-mm{sup 2} area by a toroidal mirror. This focused beam is then focused into a focal spot with a 21.4-{mu}m diameter by using a MHFPXRL. The gain of power flux density in the focal spot of the combined system is 47 473. The focal distance of the MHFPXRL is 13.3 mm. The transmitting extended x-ray-absorption fine-structure (EXAFS) spectrum of Ni foil and the fluorescent EXAFS spectrum of zinc in the zinc hyperaccumulator are measured.
- OSTI ID:
- 20795806
- Journal Information:
- Journal of Applied Physics, Vol. 99, Issue 9; Other Information: DOI: 10.1063/1.2193050; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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