- School of Physics - Research Publications
School of Physics - Research Publications
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ItemX-ray phase contrast tomography with a bending magnet sourcePeele, AG ; De Carlo, F ; McMahon, PJ ; Dhal, BB ; Nugent, KA (AMER INST PHYSICS, 2005-08)X-ray radiography and x-ray tomography are important tools for noninvasive characterization of materials. Historically, the contrast mechanism used with these techniques has been absorption. However, for any given sample there are x-ray energies for which absorption contrast is poor. Alternatively, when good contrast can be obtained, radiation damage from an excessive dose may become an issue. Consequently, phase-contrast methods have in recent years been implemented at both synchrotron and laboratory facilities. A range of radiographic and tomographic demonstrations have now been made, typically utilizing the coherent flux from an insertion device at a synchrotron or a microfocus laboratory source. In this paper we demonstrate that useful results may be obtained using a bending magnet source at a synchrotron. In particular we show that the same beamline can be used to make and characterize a sample made by x-ray lithographic methods.
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ItemMeasurement of the x-ray mass attenuation coefficient of silver using the x-ray-extended range techniqueTran, CQ ; Chantler, CT ; Barnea, Z ; de Jonge, MD ; Dhal, BB ; Chung, CTY ; Paterson, D ; Wang, J (IOP PUBLISHING LTD, 2005-01-14)
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ItemMeasurement of the x-ray mass attenuation coefficient and determination of the imaginary component of the atomic form factor of molybdenum over the 13.5-41.5-keV energy rangede Jonge, MD ; Tran, CQ ; Chantler, CT ; Barnea, Z ; Dhal, BB ; Cookson, DJ ; Lee, WK ; Mashayekhi, A (AMER PHYSICAL SOC, 2005-03)
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ItemQuantitative determination of major systematics in synchrotron x-ray experiments: seeing through harmonic componentsTran, CQ ; Barnea, Z ; de Jonge, MD ; Dhal, BB ; Paterson, D ; Cookson, DJ ; Chantler, CT (JOHN WILEY & SONS LTD, 2003-01-01)