Neutron Phase Imaging and Tomography
نویسندگان
چکیده
منابع مشابه
Phase Tomography in Neutron Interferometry
Perfect crystal neutron interferometry permits the simultaneous investigation of different interactions, like absorption, small angle scattering, and forward scattering. The coherent forward scattering of neutrons in materials or magnetic fields generates phase shifts, which can be detected with high sensitivity. The tomographic reconstruction of phase projections is similar to that of intensit...
متن کاملPhase-sensitive imaging and phase tomography using X-ray interferometers.
X-ray interferometry for imaging applications is discussed with a review of X-ray interferometric imaging activities reported to date. Phase measurement and phase tomography based on X-ray interferometry are also presented. Finally the advantage of X-ray interferometric imaging in comparison with other phase-sensitive X-ray imaging methods is discussed.
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The total scattering cross section of polycrystalline materials in the thermal neutron region contains valuable information about the scattering processes that neutrons undergo as they pass through the sample. In particular, it displays characteristic discontinuities or Bragg edges of selected families of lattice planes. We have developed a pixelated time-of-flight transmission detector able to...
متن کاملThe Simulation of the Coded Neutron Source Phase Contrast Imaging
Neutron phase contrast imaging is a recently developmental technique which is based not only on the amplitude like in the projection imaging but also on the contribution of phase alteration of the neutron beam. With the additional contrast from the difference of neutron refraction index in the sample which mainly leads to edge enhancement, phase contrast imaging can show more details about the ...
متن کاملNeutron Imaging
Neutron interrogation provides unique information valuable for Nonproliferation & Materials Control and other important applications including medicine, airport security, protein crystallography, and corrosion detection. Neutrons probe deep inside massive objects to detect small defects and chemical composition, even through high atomic number materials such as lead. However, current detectors ...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2006
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.96.215505