The Experts below are selected from a list of 14448 Experts worldwide ranked by ideXlab platform

Helmut Dosch - One of the best experts on this subject based on the ideXlab platform.

  • X-Ray Optics for liquid surface/interface spectrometers.
    Journal of Synchrotron Radiation, 2006
    Co-Authors: Veijo Honkimäki, Harald Reichert, John Okasinski, Helmut Dosch
    Abstract:

    A new X-Ray Optics which enables precise structural investigations of liquid surfaces/interfaces is introduced. The new device is based on the use of high-energy microbeams and gives access to large momentum transfer values perpendicular to the liquid surface/interface. The performance of a prototype of this new Optics, which has been constructed and implemented at the high-energy diffraction beamline ID15A at the European Synchrotron Radiation Source, is demonstrated.

  • X Ray Optics for liquid surface interface spectrometers
    Journal of Synchrotron Radiation, 2006
    Co-Authors: Veijo Honkimäki, Harald Reichert, John Okasinski, Helmut Dosch
    Abstract:

    A new X-Ray Optics which enables precise structural investigations of liquid surfaces/interfaces is introduced. The new device is based on the use of high-energy microbeams and gives access to large momentum transfer values perpendicular to the liquid surface/interface. The performance of a prototype of this new Optics, which has been constructed and implemented at the high-energy diffraction beamline ID15A at the European Synchrotron Radiation Source, is demonstrated.

Veijo Honkimäki - One of the best experts on this subject based on the ideXlab platform.

  • X-Ray Optics for liquid surface/interface spectrometers.
    Journal of Synchrotron Radiation, 2006
    Co-Authors: Veijo Honkimäki, Harald Reichert, John Okasinski, Helmut Dosch
    Abstract:

    A new X-Ray Optics which enables precise structural investigations of liquid surfaces/interfaces is introduced. The new device is based on the use of high-energy microbeams and gives access to large momentum transfer values perpendicular to the liquid surface/interface. The performance of a prototype of this new Optics, which has been constructed and implemented at the high-energy diffraction beamline ID15A at the European Synchrotron Radiation Source, is demonstrated.

  • X Ray Optics for liquid surface interface spectrometers
    Journal of Synchrotron Radiation, 2006
    Co-Authors: Veijo Honkimäki, Harald Reichert, John Okasinski, Helmut Dosch
    Abstract:

    A new X-Ray Optics which enables precise structural investigations of liquid surfaces/interfaces is introduced. The new device is based on the use of high-energy microbeams and gives access to large momentum transfer values perpendicular to the liquid surface/interface. The performance of a prototype of this new Optics, which has been constructed and implemented at the high-energy diffraction beamline ID15A at the European Synchrotron Radiation Source, is demonstrated.

John Okasinski - One of the best experts on this subject based on the ideXlab platform.

  • X-Ray Optics for liquid surface/interface spectrometers.
    Journal of Synchrotron Radiation, 2006
    Co-Authors: Veijo Honkimäki, Harald Reichert, John Okasinski, Helmut Dosch
    Abstract:

    A new X-Ray Optics which enables precise structural investigations of liquid surfaces/interfaces is introduced. The new device is based on the use of high-energy microbeams and gives access to large momentum transfer values perpendicular to the liquid surface/interface. The performance of a prototype of this new Optics, which has been constructed and implemented at the high-energy diffraction beamline ID15A at the European Synchrotron Radiation Source, is demonstrated.

  • X Ray Optics for liquid surface interface spectrometers
    Journal of Synchrotron Radiation, 2006
    Co-Authors: Veijo Honkimäki, Harald Reichert, John Okasinski, Helmut Dosch
    Abstract:

    A new X-Ray Optics which enables precise structural investigations of liquid surfaces/interfaces is introduced. The new device is based on the use of high-energy microbeams and gives access to large momentum transfer values perpendicular to the liquid surface/interface. The performance of a prototype of this new Optics, which has been constructed and implemented at the high-energy diffraction beamline ID15A at the European Synchrotron Radiation Source, is demonstrated.

Harald Reichert - One of the best experts on this subject based on the ideXlab platform.

  • X-Ray Optics for liquid surface/interface spectrometers.
    Journal of Synchrotron Radiation, 2006
    Co-Authors: Veijo Honkimäki, Harald Reichert, John Okasinski, Helmut Dosch
    Abstract:

    A new X-Ray Optics which enables precise structural investigations of liquid surfaces/interfaces is introduced. The new device is based on the use of high-energy microbeams and gives access to large momentum transfer values perpendicular to the liquid surface/interface. The performance of a prototype of this new Optics, which has been constructed and implemented at the high-energy diffraction beamline ID15A at the European Synchrotron Radiation Source, is demonstrated.

  • X Ray Optics for liquid surface interface spectrometers
    Journal of Synchrotron Radiation, 2006
    Co-Authors: Veijo Honkimäki, Harald Reichert, John Okasinski, Helmut Dosch
    Abstract:

    A new X-Ray Optics which enables precise structural investigations of liquid surfaces/interfaces is introduced. The new device is based on the use of high-energy microbeams and gives access to large momentum transfer values perpendicular to the liquid surface/interface. The performance of a prototype of this new Optics, which has been constructed and implemented at the high-energy diffraction beamline ID15A at the European Synchrotron Radiation Source, is demonstrated.

René Hudec - One of the best experts on this subject based on the ideXlab platform.

  • Replicated X-Ray Optics for space applications
    International Conference on Space Optics — ICSO 2000, 2017
    Co-Authors: René Hudec, Ladislav Pina, Adolf Inneman
    Abstract:

    We report on the program of design and development of X-Ray Optics for space applications in the Czech Republic. Having more than 30 years background in X-Ray Optics development for space applications (for use in astronomical X-Ray telescopes onboard spacecrafts, before 1989 mostly for Soviet and East European INTERKOSMOS program), we focus nowadays on novel technologies and approaches, thin shell replicated mirrors, as well as studies of light-weight mirrors based on innovative materials such as ceramics. The collaboration includes teams from the Academy of Sciences, Universities, and industry. We will describe and discuss both the history of the development of XRay Optics in the Czech Republic and the developed technologies and approaches (with focus on replication technology) as well as recent activities and developments including our participation on the ESA XEUS mirror technology development based on the Agreement between ESA and Czech Government.

  • Novel wide-field X-Ray Optics for space
    International Conference on Space Optics — ICSO 2000, 2017
    Co-Authors: René Hudec, Ladislav Pina, Adolf Inneman
    Abstract:

    We report on the program of design and development of innovative very wide field X-Ray Optics for space applications. We describe the idea of wide field X-Ray Optics of the lobster-eye type of both Angel and Schmidt arrangements. This Optics was suggested in 70ies but not yet used in space eXperiment due to severe manufacturing problems. The lobster-eye X-Ray Optics may achieve up to 180 degrees (diameter) field of view at angular resolution of order of 1 arcmin. We report on various prototypes of lobster-eye X-Ray lenses based on alternative technologies (replicated double sided X-Ray reflecting flats, float glass, replicated square channels etc.) as well as on their optical and X-Ray tests. We also discuss the importance and performance of lobster-eye X-Ray telescopes in future X-Ray astronomy projects.

  • New trends in space X-Ray Optics
    International Conference on Space Optics — ICSO 2010, 2017
    Co-Authors: René Hudec, Ladislav Pina, Adolf Inneman, V. Marsikova, M. Skulinova
    Abstract:

    The X-Ray Optics is a key element of various X-Ray telescopes, X-Ray microscopes, as well as other X-Ray imaging instruments. The grazing incidence X-Ray lenses represent the important class of X-Ray Optics. Most of grazing incidence (reflective) X-Ray imaging systems used in astronomy but also in other (laboratory) applications are based on the Wolter 1 (or modified) arrangement. But there are also other designs and configurations proposed, used and considered for future applications both in space and in laboratory. The Kirkpatrick-Baez (K-B) lenses as well as various types of Lobster-Eye Optics and MCP/Micropore Optics serve as an eXample. Analogously to Wolter lenses, the X-Rays are mostly reflected twice in these systems to create focal images. Various future projects in X-Ray astronomy and astrophysics will require large segments with multiple thin shells or foils. The large Kirkpatrick-Baez modules, as well as the large Lobster-Eye X-Ray telescope modules in Schmidt arrangement may serve as eXamples. All these space projects will require high quality and light segmented shells (bent or flat foils) with high X-Ray reflectivity and eXcellent mechanical stability. The Multi Foil Optics (MFO) approach represent a promising alternative for both LE and K-B X-Ray optical modules. Several types of reflecting substrates may be considered for these applications, with emphasis on thin float glass sheets and, more recently, high quality silicon wafers. This confirms the importance of non- Wolter X-Ray Optics designs for the future. Future large space X-Ray telescopes (such as IXO) require precise and light-weight X-Ray Optics based on numerous thin reflecting shells. Novel approaches and advanced technologies are to be eXploited and developed. In this contribution, we refer on results of tested X-Ray mirror shells produced by glass thermal forming (GTF) and by shaping Si wafers. Both glass foils and Si wafers are commercially available, have eXcellent surface microroughness of a few 0.1 nm, and low weight (the volume density is 2.5 g cm-3 for glass and 2.3 g cm-3 for Si). Technologies are needed to be eXploited; how to shape these substrates to achieve the required precise XRay Optics geometries without degradations of the fine surface microroughness. Although glass and recently silicon wafers are considered to represent most promising materials for future advanced large aperture space XRay telescopes, there also eXist other alternative materials worth further study such as amorphous metals and glassy carbon [1]. In order to achieve sub-arsec angular resolutions, principles of active Optics have to be adopted.

  • Application of biomimetics in X-Ray Optics
    EUV and X-ray Optics: Synergy between Laboratory and Space V, 2017
    Co-Authors: René Hudec, K. Remisova
    Abstract:

    The principles of biomimetics were successfully applied in X Ray Optics in the past and recently, e.g. in Lobster-Eye optical systems. However, the recent growing knowledge of sea vision, especially of peculiar mirror eyes of scallops, crustaceans, and deep sea fishes, makes it possible to consider other such applications. One of the most important discoveries is finding of mirror eyes in deep sea fish DolichopteryX longipes based on large large numbers of very small mirror plates organized in specific positions. This arrangement may even include principles of active Optics. We report on ongoing study with focus on understanding of very specific mirror eyes of sea animals and how they may help us to design and develop special Optics for scientific applications. We study the ways these mirror eyes work, what are the advantages of these peculiar eye arrangements, and whether these Optics can be used in advanced devices, e. g. X-Ray Optics. We will briefly present and discuss the preliminary results.

  • Active X-Ray Optics
    Damage to VUV EUV and X-ray Optics IV; and EUV and X-ray Optics: Synergy between Laboratory and Space III, 2013
    Co-Authors: René Hudec, Martin Hromcik, Martin Elvis, O. Gedeon
    Abstract:

    The future of X-Ray astronomy requires heavily nested large area X-Ray mirrors with arcsecond angular resolution in future X-Ray astrophysics eXperiments. Despite of promising results of several eXploited technologies during the past decade, it is not demonstrated yet that these technologies will provide the angular resolutions better than few arcsec. The alternative approach is the method of active X-Ray Optics. In addition, active approaches based on computer control may be applied directly during manufacturing of advanced X-Ray Optics elements, such as substrate slumping. In this report, we present and discuss preliminary results of X-Ray tests of various modules in active X-Ray Optics arrangements.