Auflistung Geochemie, Mineralogie, Petrologie nach Titel

Anzeige der Dokumente 557-565 von 565

    • X-ray diffraction from strongly bent crystals and spectroscopy of X-ray free-electron laser pulses 

      Kaganer, Vladimir M.; Petrov, Ilia; Samoylova, Liubov (Acta Crystallographica Section A, 2019)
      The use of strongly bent crystals in spectrometers for pulses of a hard X-ray free-electron laser is explored theoretically. Diffraction is calculated in both dynamical and kinematical theories. It is shown that diffraction ...

    • X-ray diffraction using focused-ion-beam-prepared single crystals 

      Weigel, Tina; Funke, Claudia; Zschornak, Matthias; Behm, Thomas; Stöcker, Hartmut; Leisegang, Tilmann; Meyer, Dirk C. (Journal of Applied Crystallography, 2020)
      High-quality single-crystal X-ray diffraction measurements are a prerequisite for obtaining precise and reliable structure data and electron densities. The single crystal should therefore fulfill several conditions, of ...

    • XDSGUI: a graphical user interface for XDS, SHELX and ARCIMBOLDO 

      Brehm, Wolfgang; Triviño, Josep; Krahn, Juno M.; Usón, Isabel; Diederichs, Kay (Journal of Applied Crystallography, 2023-09-05)

      XDSGUI is a lightweight graphical user interface (GUI) for the XDS, SHELX and ARCIMBOLDO ...

    • XGANDALF – extended gradient descent algorithm for lattice finding 

      Gevorkov, Yaroslav; Yefanov, Oleksandr; Barty, Anton; White, Thomas A.; Mariani, Valerio; Brehm, Wolfgang; Tolstikova, Aleksandra; Grigat, Rolf-Rainer; Chapman, Henry N. (Acta Crystallographica Section A, 2019-08-30)
      Serial crystallography records still diffraction patterns from single, randomly oriented crystals, then merges data from hundreds or thousands of them to form a complete data set. To process the data, the diffraction ...

    • X‐ray dichroism in polyimide caused by non‐resonant scattering 

      Schulze, K. S.; Loetzsch, R.; Rüffer, R.; Uschmann, I.; Röhlsberger, R.; Paulus, G. G. (Journal of Synchrotron Radiation, 2020-12-22)
      Dichroism is one of the most important optical effects in both the visible and the X‐ray range. Besides absorption, scattering can also contribute to dichroism. This paper demonstrates that, based on the example of polyimide, ...

    • X‐ray diffraction with micrometre spatial resolution for highly absorbing samples 

      Chakrabarti, Prerana; Wildeis, Anna; Hartmann, Markus; Brandt, Robert; Döhrmann, Ralph; Fevola, Giovanni; Ossig, Christina; Stuckelberger, Michael Elias; Garrevoet, Jan; Falch, Ken Vidar; Galbierz, Vanessa; Falkenberg, Gerald; Modregger, Peter (Journal of Synchrotron Radiation, 2022-10-05)
      X‐ray diffraction with high spatial resolution is commonly used to characterize (poly)crystalline samples with, for example, respect to local strain, residual stress, grain boundaries and texture. However, the investigation ...

    • X‐SPEC: a 70 eV to 15 keV undulator beamline for X‐ray and electron spectroscopies 

      Weinhardt, Lothar; Steininger, Ralph; Kreikemeyer-Lorenzo, Dagmar; Mangold, Stefan; Hauschild, Dirk; Batchelor, David; Spangenberg, Thomas; Heske, Clemens (Journal of Synchrotron Radiation, 2021-02-10)
      X‐SPEC is a high‐flux spectroscopy beamline at the KIT (Karlsruhe Institute of Technology) Synchrotron for electron and X‐ray spectroscopy featuring a wide photon energy range. The beamline is equipped with a permanent ...

    • Young magmatism and Si‐rich melts on Mars as documented in the enriched gabbroic shergottite NWA 6963 

      Lindner, MilesORCIDiD; Hezel, Dominik C.ORCIDiD; Gerdes, AxelORCIDiD; Marschall, Horst R.ORCIDiD; Brenker, Frank E.ORCIDiD (Meteoritics & Planetary Science, 2022-10-17)
      Enriched shergottites contain interstitial Si‐rich mesostasis; however, it is unclear whether such mesostasis is formed by impact or magmatic processes. We use laser ablation multicollector inductively coupled plasma mass ...

    • Zircon and Melt Extraction From a Long‐Lived and Vertically Extensive Magma System Underneath Ilopango Caldera (El Salvador) 

      Cisneros de León, A.ORCIDiD; Schmitt, A. K.ORCIDiD; Kutterolf, S.ORCIDiD; Schindlbeck‐Belo, J. C.; Hernández, W.; Sims, K. W. W.; Garrison, J.ORCIDiD; Kant, L. B.ORCIDiD; Weber, B.ORCIDiD; Wang, K.‐L.ORCIDiD; Lee, H.‐Y.; Trumbull, R. B. (Geochemistry, Geophysics, Geosystems, 2021-05-12)
      The Tierra Blanca (TB) eruptive suite comprises the last four major eruptions of Ilopango caldera in El Salvador (≤45 ka), including the youngest Tierra Blanca Joven eruption (TBJ; ∼106 km3): the most voluminous event ...