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Träfflista för sökning "WFRF:(Sorensen L) srt2:(1990-1994)"

Sökning: WFRF:(Sorensen L) > (1990-1994)

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1.
  • Andersen, J. N., et al. (författare)
  • Surface core-level shifts as a probe of the local overlayer structure : CO on Pd(100)
  • 1991
  • Ingår i: Physical Review Letters. - 0031-9007. ; 67:20, s. 2822-2825
  • Tidskriftsartikel (refereegranskat)abstract
    • The bonding energies of the Pd 3d and the C 1s core levels have been studied for the p(2 S 2 × 2) R45°, p(3 s2 × S2) R45°, and p(4 S 2 × S 2) R45°structures of CO on Pd(100). Adsorption of CO shifts the Pd 3d surface emission to higher binding energies with the magnitude of the shift depending almost linearly on the number of Pd to CO bonds; the measured shift per bond is close to 0.5 eV. A direct relation is established between the detailed geometry of the CO overlayer and the changes in the Pd 3d spectra.
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5.
  • Sorensen, S.L., et al. (författare)
  • A normal-incidence beam line at the MAX storage ring
  • 1990
  • Ingår i: Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. - 0168-9002. ; 297:1-2, s. 296-300
  • Tidskriftsartikel (refereegranskat)abstract
    • A 1-m normal-incidence monochromator has been designed and installed on a bending-magnet beam line at the MAX storage ring in Lund. The optical properties of the beam line have been investigated via ray-tracing studies and with flux measurements of the beam line-monochromator combination. A resolution of 0.9 Å at 919.8 Å was measured in first-order diffraction with an argon hollow-cathode lamp for slit openings of 100 μm. A photon flux of 2.0 × 1010 at 550 Å with 250 μm slits was measured with a calibrated GaAs photodiode through a 1.5-mm diameter aperture in an aluminum mask on the photodiode. The new instrument has a microcomputer controlled mechanism which optimizes focussing requirements for a scanning monochromator with the requirement of fixed slits and fixed exit beam.
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