| Autor: |
Yang, B. X., Middleton, F. H., Olsson, B. G., Bancroft, G. M., Chen, J. M., Sham, T. K., Tan, K., Wallace, D. J. |
| Předmět: |
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| Zdroj: |
Review of Scientific Instruments; Jan1992, Vol. 63 Issue 1, p1355, 4p |
| Abstrakt: |
We report the design, construction, and performance of a soft x-ray beam line with accessible photon energy 0.8–4.0 keV at the Synchrotron Radiation Center, University of Wisconsin–Madison. The beam line features an ultrahigh-vacuum (UHV) compatible high-precision double-crystal monochromator (DCM) covering Bragg angles 12°–72°, which was designed and built at the Physical Science Laboratory (PSL), University of Wisconsin–Madison. The monochromatic x rays are focused by a bent cylindrical mirror (Ni-coated fused silica, located 7.5 m from the source) into the experimental chamber (located 5.5 m from the mirror) down to a spot less than 1 mm(h)×3 mm(v). During the initial runs, the DCM used a pair of InSb(111) crystals and covered photon energy 1.75–3.7 keV. At the silicon K edge (1840 eV), the beam line delivered about 4×1011 photons/s with stored electron beam at 100 mA at 1 Gev, among the most intense and stable sources currently available at this energy. The energy resolution is about 0.9 eV at the Si K edge. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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