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  • 1995-1999  (3)
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Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    X-ray Monochromator with 2 × 108 Energy Resolution (1996)
    Chester : International Union of Crystallography (IUCr)
    Journal of synchrotron radiation 3 (1996), S. 62-64 
    Details
    ISSN: 1600-5775
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: An X-ray beam of 3 × 107 photons s−1 with 2 × 108 relative energy resolution has been obtained at a third-generation synchrotron undulator X-ray source using the (13 13 13) Bragg reflection from a silicon perfect crystal. The production of these 25.70 keV X-rays with 450 ± 50 μeV bandpass opens up new possibilities in X-ray optics and spectroscopies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0909049595015883
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Equivalence of the sound velocity in water and ice at mesoscopic wavelengths (1996)
    [s.l.] : Nature Publishing Group
    Nature 379 (1996), S. 521-523 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The liquid and solid states are thermodynamical concepts related to the time evolution of the relative positions of the constituents of a condensed material. Whereas in the solid there are no changes over a long timescale, the liquid has characteristic diffusive motions. These two concepts are at ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/379521a0
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Polarization effects in resonant nuclear scattering (1999)
    Springer
    Hyperfine interactions 123-124 (1999), S. 681-719 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Polarization phenomena are present in every radiative transition, whether it is of atomic or nuclear origin. Nuclear resonant scattering of synchrotron radiation is an ideal technique for their study because (a) the probing radiation is in a well characterized polarization state, in most cases linear, (b) the scattered radiation can be efficiently analyzed with polarization filters, and (c) synchrotron pulses are very short compared to the lifetime of a nuclear resonance, resulting in a clean signal. In the following article we describe experimental and theoretical studies of the 14.4 keV Mössbauer resonance of 57Fe and its transitions with linear and circular polarization. After introducing the required instrumentation a formalism to calculate time dependent polarization phenomena is derived. With the help of different scattering geometries we illustrate various aspects, such as polarization mixing and selective excitation of subsets of the resonance. Perhaps the most fascinating example is the Faraday geometry where the E-vector rotates several 360ο turns during the lifetime of the resonant scattering. A comparison of this phenomenon with the optical Faraday effect is given. New powerful synchrotron radiation sources will enable researchers to exploit polarization phenomena in nuclear resonant scattering to detect subtle changes in physically and chemically relevant systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1017096512347
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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