Heiney, Paul A.

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Now showing 1 - 10 of 44
  • Publication
    5.4 - Porod, Guinier, and Kratke Plots
    (2016-08-05) Heiney, Paul A.
    Different ways of representing SAXS data. Porod plots pull out high-Q features on a linear scale. Guinier plots can be used to extract the radiation of gyration. Kratke plots can help distinguish between extended and compact conformations of chains such as proteins. Time 6:44.
  • Publication
    2.2 - Synchrotron Radiation
    (2016-04-14) Heiney, Paul A.
    Synchrotron radiation produced by accelerating charge in a magnetic field. Spectrum and beam shape of synchrotron radiation. Critical comparison of tube and synchrotron sources. Time 6:36.
  • Publication
    7.3 - Introduction to Neutron Scattering
    (2016-08-25) Heiney, Paul A.
    Wave nature of the neutron. Comparison of neutrons, X-rays for diffraction. Neutron scattering cross sections. Coherent and incoherent scattering. Time 6:00.
  • Publication
    2.3 - Synchrotron Radiation Sources
    (2016-04-20) Heiney, Paul A.
    General description of facilities for producing synchrotron radiation. The Advance Photon Source. Wigglers and undulators. Synchrotron sources in the U.S. and worldwide. Time 5:23.
  • Publication
    2.1 - X-ray Tubes
    (2016-04-14) Heiney, Paul A.
    Production of electromagnetic radiation, and description of light as photons. Description of traditional X-ray tubes. Spectrum of X-ray radiation from a tube source. Rotating anodes, microfocus sources. Time 8:08.
  • Publication
    2.4 - Collimation Optics
    (2016-04-20) Heiney, Paul A.
    Approaches to producing collimated, monochromatic beams: pinholes, slits, monochromators, filters, mirrors, confocal optics. Goniometers for orienting samples. Time 7:42.
  • Publication
    3.8 - Limitations to X-ray Crystallography
    (2016-07-25) Heiney, Paul A.
    Limitations of crystallography due to: powder samples, finite angular range, the phase problem. Common solutions to these problems. Time 7:02.
  • Publication
    4.3 - Smectic Liquid Crystals and Lamellar Polymers
    (2016-08-02) Heiney, Paul A.
    General features of layered soft materials such as smectic liquid crystals and lamellar polymers. Identification of lamellar phases. What you can learn from peak intensities. Time 4:53.
  • Publication
    8.5 - Applications of X-ray Attenuation
    (2016-09-01) Heiney, Paul A.
    Effect of beam attenuation going through the sample in an X-ray scattering measurement. Transmission and sample thickness. Design of shielding. Effect of shorter wavelengths ("harmonic contamination.") Time 7:35.
  • Publication
    8.1 - Introduction to Radiation Safety
    (2016-08-29) Heiney, Paul A.
    Units and quality factors for radioactive sources and doses. How serious are different dosages? Time 7:48.