Synchrotron Radiation

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R. Rüffer - One of the best experts on this subject based on the ideXlab platform.

  • Properties of Synchrotron Radiation
    Hyperfine Interactions, 1999
    Co-Authors: G. Mülhaupt, R. Rüffer
    Abstract:

    This article describes the basic mechanisms for the generation of Synchrotron Radiation. It gives the basic equations for the emission characteristics of a single transversally accelerated relativistic particle as well as the modifications to these equations due to the multi-particle behaviour of real accelerator beams. It also introduces the boundary conditions for emission of coherent Radiation and at the end gives an overview of the parameters of Synchrotron Radiation sources presently used for nuclear resonance scattering.

Katharina Christine Cramer - One of the best experts on this subject based on the ideXlab platform.

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

  • Synchrotron Radiation facilities
    Nature Structural Biology, 1998
    Co-Authors: John R. Helliwell
    Abstract:

    Synchrotron Radiation facilities — with their increasingly high source brilliance, wide tunability and time resolution capabilities — have revolutionized X-ray diffraction, spectroscopy and imaging research.

  • Fifty Years of Synchrotron Radiation
    Journal of Synchrotron Radiation, 1997
    Co-Authors: S. Samar Hasnain, John R. Helliwell, Hiromichi Kamitsubo
    Abstract:

    This issue marks the 50th anniversary of the first observation of Synchrotron Radiation light from the General Electric 70 MeV Synchrotron and coincides with the third anniversary of the Journal of Synchrotron Radiation (JSR). The issue brings together review articles from some of the pioneers of the field and in our view forms a unique historical record. The interdisciplinary nature of Synchrotron Radiation research has been apparent from the early 1970's and the planners of the secondand third-generation sources have paid particular attention to the requirements of such an interdisciplinary community. It is clear that Synchrotron Radiation has removed the boundaries in otherwise somewhat isolated research areas. Indeed, JSR is playing an important part in furthering such interdisciplinary interactions. Over the last three years we have brought together the broad Synchrotron Radiation community by offering rapid communication of scientific and technical developments in the journal. We have not compromised on the quality of the contributions and have managed to combine this with a speed and high standard of production. In this period, more than half a dozen third-generation Synchrotron Radiation sources have come into operation and several more are now at an advanced state of planning or construction (e.g. SLS, DIAMOND and SOLEIL). Worldwide this is still a rapidly expanding field. It is now just over 40 years since the first Synchrotron Radiation experiments were performed by Tomboulin and Hartman at Cornell in the soft X-ray region. These experiments were immediately followed by those of Madden and Codling in 1961 at the National Bureau of Standards in the UV/VUV region. This early utilization demonstrated the wealth of physics that needed to be explored by these new continuum light sources. Initiatives in Europe (Frascati, DESY, NINA), the former Soviet Union (VEPP) and Japan (INS-SOR) began in the mid-1960's along with expanding scientific opportunities. The first biological experiments were performed at DESY by Holmes, Rosenbaum and Witz in 1970, opening Synchrotron Radiation to the biological community. We again reiterate the main objectives of JSR; namely, to provide a focus for the whole of the Synchrotron Radiation community, and to accept papers only of a high standard covering sources, instrumentation, methods and applications. Through 1997 our main aim has been to increase the size of each issue. We are grateful to the many authors who have responded enthusiastically to our call. We continue to urge you to always consider JSR as the first choice when you have new results, methods or instrumental facilities. It is only through your high-quality contributions that our community will be able to sustain a high-quality journal. We accompany this editorial with a photograph (Fig. 1) taken in August 1997 at the Synchrotron Radiation Instrumentation Conference in Himeji, Japan, featuring some of the pioneers of the Synchrotron Radiation field (papers from the conference will be published in the May 1998 issue of the journal).

  • Macromolecular Crystallography with Synchrotron Radiation
    1992
    Co-Authors: John R. Helliwell
    Abstract:

    Preface Introduction 1. Fundamentals of macromolecular crystallography 2. Fundamentals of macromolecular structure 3. Sources and properties of Synchrotron Radiation 4. Synchrotron Radiation instrumentation 5. Monochromatic data collection 6. The Laue method 7. Diffuse X-ray scattering from macromolecular crystals 8. Variable wavelength anomalous dispersion methods and applications More applications Conclusions and future possibilities Appendixes Bibliography References Index.

Qin Shan - One of the best experts on this subject based on the ideXlab platform.

  • Synchrotron Radiation and high-pressure mineralogy
    Earth Science Frontiers, 2005
    Co-Authors: Qin Shan
    Abstract:

    Synchrotron Radiation is an important scientific devices, from which the electromagnetic waves can be created. By using Synchrotron Radiation and diamond anvil cell (DAC), the crystal structures and physical properties of natural minerals under high-pressure can be investigated. This article briefly introduces the characteristics of the light source from Synchrotron Radiation, and explains the high-pressure experiments in terms of DAC and related techniques. Based on the high-pressure station at the Beijing Synchrotron Radiation Facility (BSRF), the method of energy dispersive X-ray diffraction (EDXD) and in situ high-pressure structures and p-V equations of state for some natural minerals, such as CaTiO_3 perovskite, jadeite, kaersutite, tourmaline and epidote, are reviewed.

A Olivo - One of the best experts on this subject based on the ideXlab platform.

  • mammography with Synchrotron Radiation phase detection techniques
    Radiology, 2000
    Co-Authors: Fulvia Arfelli, A Bravin, G Cantatore, E Castelli, Dalla L Palma, M Di Michiel, M Fabrizioli, R Longo, Ralfhendrik Menk, A Olivo
    Abstract:

    The authors evaluated the effect on mammographic examinations of the use of Synchrotron Radiation to detect phase-perturbation effects, which are higher than absorption effects for soft tissue in the energy range of 15-25 keV. Detection of phase-perturbation effects was possible because of the high degree of coherence of Synchrotron Radiation sources. Synchrotron Radiation images were obtained of a mammographic phantom and in vitro breast tissue specimens and compared with conventional mammographic studies. On the basis of grades assigned by three reviewers, image quality of the former was considerably higher, and the delivered dose was fully compatible.