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| XANES× | X線小角散乱法（SAXS）× | |
|---|---|---|
| 分野 | 分光学 | 分光学 |
| 系統 | Process / pipeline | Process / pipeline |
| 提唱年≠ | 1975 | 1954 |
| 提唱者≠ | Peter Lee | Otto Kratky |
| 種類≠ | Synchrotron technique | Synchrotron/X-ray technique |
| 原典≠ | Lee, P. A., & Pendry, J. B. (1975). Theory of extended x-ray absorption fine structure. Physical Review B, 11(8), 2795-2811. DOI ↗ | Glatter, O., & Kratky, O. (1982). Small Angle X-ray Scattering. Academic Press. link ↗ |
| 別名 | XANES spectroscopy, near-edge X-ray absorption | SAXS, small-angle scattering |
| 関連 | 3 | 3 |
| 概要≠ | X-ray Absorption Near Edge Structure (XANES) is a synchrotron X-ray spectroscopy technique that measures the electronic and geometric structure around a specific atom by analyzing the X-ray absorption spectrum within about 50 eV of an absorption edge. Developed by Lee and Pendry in 1975, XANES is complementary to EXAFS and reveals valence state, local symmetry, and unoccupied orbital structure through near-threshold features and resonances. | Small-Angle X-ray Scattering (SAXS) is a solution-phase X-ray scattering technique that measures the overall shape and size of macromolecules and nanoparticles by analyzing scattering intensity at low angles (0.1-10 degrees). Developed by Kratky and colleagues in the 1950s, SAXS provides information about molecular radius, aggregation state, and overall shape without requiring crystallization or fixing, making it ideal for studying native protein conformations and dynamics. |
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