Coherence-matched microfocusing of hard x rays

Nöhammer, B.; David, C.; Burghammer, M.; Riekel, C.
April 2005
Applied Physics Letters;4/18/2005, Vol. 86 Issue 16, p163104
Academic Journal
An efficient, high-resolution microfocusing device for hard x rays is presented. A combination of two linear zone plates mounted with orthogonal orientation is used to provide two-dimensional focusing. Choosing appropriate lens parameters, the device can be matched to the quasielliptical shape of most synchrotron x-ray sources to obtain a symmetric, circular-shaped focal spot. A rectangular device aperture allows the maximization of the light-collecting area and to simultaneously achieve a highly coherent illumination of the device. Such a setup was tested at the European Synchrotron Radiation Facility and test gratings with minimal line widths of 140 nm could be resolved. The gain in flux density was found to be 105 for 12.7 keV photons.


Related Articles

  • Applications of Laminar Weak-Link Mechanisms for Ultraprecision Synchrotron Radiation Instruments. Shu, D.; Toellner, T. S.; Alp, E. E.; Maser, J.; Ilavsky, J.; Shastri, S. D.; Lee, P. L.; Narayanan, S.; Long, G. G. // AIP Conference Proceedings;2007, Vol. 879 Issue 1, p1073 

    Unlike traditional kinematic flexure mechanisms, laminar overconstrained weak-link mechanisms provide much higher structure stiffness and stability. Using a laminar structure configured and manufactured by chemical etching and lithography techniques, we are able to design and build linear and...

  • Cross-Fertilization between Spallation Neutron Source and Third Generation Synchrotron Radiation Detectors. Gebauer, B.; Schulz, Ch.; Levchanovsky, F. V.; Litvinenko, E. I.; Nikiforov, A. S.; Alimov, S. S.; Wilpert, Th.; Warwick, T. // AIP Conference Proceedings;2004, Vol. 705 Issue 1, p1013 

    Suffering presently from relatively low source strengths compared to synchrotron radiation investigations, neutron scattering methods will greatly benefit from the increase of instantaneous flux attained at the next generation of pulsed spallation neutron sources. In particular at ESS, the...

  • Properties of Wide-dose-range GafChromic Films for Synchrotron Radiation Facility. Nariyama, Nobuteru // AIP Conference Proceedings;2007, Vol. 879 Issue 1, p1133 

    GafChromic films have been used at SPring-8 to detect the intensively irradiated parts and protect them from damage by being covered with shield or moved. To extend the usable dose range more widely, a new type of sensitive film EBT was investigated for the introduction. Calibration curves were...

  • The New Materials Science Beamline HARWI-II at DESY. Beckmann, Felix; Dose, Thomas; Lippmann, Thomas; Lottermoser, Lars; Martins, Rene-V.; Schreyer, Andreas // AIP Conference Proceedings;2007, Vol. 879 Issue 1, p746 

    In autumn 2005, the GKSS-Research Center Geesthacht in cooperation with Deutsches Elektronen-Synchrotron DESY, Hamburg, started operation of the new synchrotron radiation beamline HARWI-II. The beamline is specialized for performing materials science experiments using hard X-rays. First...

  • Lay-out of ultrahigh-vacuum DC-monochromator. Zhogin, I.; Gavrilov, N.; Tolochko, B.; Ancharov, A.; Sharafutdinov, M.; Kondrat'ev, V.; Sheromov, M.; Tsukanov, V.; Shmakov, A.; Warwick, T. // AIP Conference Proceedings;2004, Vol. 705 Issue 1, p691 

    Features and design advantages of the ultra-high vacuum double-crystal monochromator with (practically) fixed exit and the opportunity of sagittal focussing are discussed. Monochromator is projected and is under construction for 6-th synchrotron radiation beamline at VEPP-3 storage ring of...

  • Fundamentals of Coherent Synchrotron Radiation in Storage Rings. Sannibale, F.; Byrd, J. M.; Loftsdottir, A.; Martin, M. C.; Venturini, M.; Warwick, T. // AIP Conference Proceedings;2004, Vol. 705 Issue 1, p141 

    We present the fundamental concepts for producing stable broadband coherent synchrotron radiation (CSR) in the terahertz frequency region in an electron storage ring. The analysis includes distortion of bunch shape from the synchrotron radiation (SR), enhancing higher frequency coherent emission...

  • Volume-variable sample holder for small-angle x-ray scattering measurements of supercritical solutions and its application to the CHF3–CO2 mixture. Morita, Takeshi; Masakawa, Tomoko; Arai, Asako Ayusawa; Nakagawa, Masato; Nishikawa, Keiko // Review of Scientific Instruments;Mar2005, Vol. 76 Issue 3, p033902 

    A sample holder for small-angle x-ray scattering (SAXS) experiments was designed for a volume-variable operation by using a metal bellows. The key point of our design is such that no backup pressure is required. This made the sample cell and peripherals compact so that it can be placed in a...

  • A detector for imaging of explosions on a synchrotron radiation beam. Aulchenko, V. M.; Evdokov, O. V.; Zhogin, I. L.; Zhulanov, V. V.; Pruuel, E. R.; Tolochko, B. P.; Ten, K. A.; Shekhtman, L. I. // Instruments & Experimental Techniques;May2010, Vol. 53 Issue 3, p334 

    Synchrotron radiation (SR) offers a unique chance to study the structure of a substance in fast processes. Since SR is emitted by electron bunches in a storage ring, the SR burst corresponding to a single bunch may be very short. Should a detector capable of detecting SR from a single bunch...

  • Archaeometrical studies using X-ray fluorescence methods. Pauna, Catalina; Constantinescu, B.; Constantin, F.; Bugoi, R.; Stan, D.; Vasilescu, A. // AIP Conference Proceedings;4/26/2010, Vol. 1231 Issue 1, p187 

    Elemental analysis contributes to authentication (knowing the elemental composition and considering the information about the usual composition of the objects in different historical periods it can be established if the item is original or fake), provenance studies (minor and trace elements...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics