Blar i UiS Brage på forfatter "Thorkildsen, Gunnar"

Viser treff 1-5 av 5

    • Aspects of X-Ray Diffraction Using Mathematica 

      Ramsnes, Stian (Masteroppgave/UIS-TN-IMN/2016;, Master thesis, 2016-06-15)
      A specialised Mathematica package has been launched, which is intended to become a valuable tool in our line of work. Old and new code has been compiled to a single, organised and flexible package, featuring a neat ...

    • Atomic scattering factors and atomic cross-sections in x-ray crystallography 

      Nes, Ioana Andreea (Masteroppgave/UIS-TN-IMF/2018;, Master thesis, 2018-06-15)
      Crystallographers as well as other scientists and engineers need reliable sets of physical data. Focus is here set upon the x-ray attenuation coefficients (the atomic photoeffect cross-section, and the incoherent (Compton) ...

    • The experimental and theoretical investigation of single-crystal diamond compound refractive lenses (CRLs) 

      Zhang, Qiuyuan (PhD theses (TN-IMF);527, Doctoral thesis, 2020-06)
      In the field of X-ray optics, compound refractive lenses (usually termed CRLs) function as a focusing device for hard X-rays and they are believed to possess a lot of prominent advantages over other focusing devices, such ...

    • Investigation of glitches induced by single-crystal diamond compound refractive lenses based on crystal orientation 

      Zhang, Qiuyuan; Polikarpov, Maxim; Nataliya, Klimova; Larsen, Helge Bøvik; Mathiesen, Ragnvald; Emerich, Hermann; Thorkildsen, Gunnar; Snigireva, Irina; Snigirev, Anatoly (Peer reviewed; Journal article, 2019)
      Single-crystal diamond is considered as an ideal material for compound refractive lenses (usually abbreviated to “CRLs”) mainly due to its stability when bathed in strong X-ray radiation. Since CRLs come into operation by ...

    • New benchmarks in the modelling of X-ray atomic form factors 

      Thorkildsen, Gunnar (Peer reviewed; Journal article, 2023)
      Analytical representations of X-ray atomic form factor data have been determined. The original data, f0(s;Z), are reproduced to a high degree of accuracy. The mean absolute errors calculated for all s = sin θ/λ and Z values ...