Search Results - "Chantler, CT"

X-ray mass attenuation coefficient of silicon: theory versus experiment by Tran, C Q, Chantler, C T, Barnea, Z

“…We compare new experimental x-ray total mass attenuation coefficients of silicon obtained with the x-ray extended-range technique (XERT) from 5 to 20 keV with…”
Get full text

Measurement of the spatial coherence function of undulator radiation using a phase mask by Lin, J J A, Paterson, D, Peele, A G, McMahon, P J, Chantler, C T, Nugent, K A, Lai, B, Moldovan, N, Cai, Z, Mancini, D C, McNulty, I

“…A measurement of the horizontal coherence function of 7.9 keV radiation from an undulator beam line at the Advanced Photon Source is reported. X-ray…”
Get full text

CAMOP: Report on the 20th International Conference on X-ray and Inner-Shell Processes, 4–8 July 2005, Melbourne, Australia by Chantler, C T

Get full text

Spatial coherence measurement of X-ray undulator radiation by Paterson, D., Allman, B.E., McMahon, P.J., Lin, J., Moldovan, N., Nugent, K.A., McNulty, I., Chantler, C.T., Retsch, C.C., Irving, T.H.K., Mancini, D.C.

“…We measure the spatial coherence function of a quasi-monochromatic 1.1 keV X-ray beam from an undulator at a third-generation synchrotron. We use a Young's…”
Get full text

X-ray extended-range technique for precision measurement of the X-ray mass attenuation coefficient and Im( f) for copper using synchrotron radiation by Chantler, C.T., Tran, C.Q., Paterson, D., Cookson, D., Barnea, Z.

“…We reconsider the long-standing problem of accurate measurement of atomic form factors for fundamental and applied problems. We discuss the X-ray…”
Get full text

Discrepancies in quantum electro-dynamics by Chantler, C.T.

“…Experimental tests of quantum electro-dynamics (QED) have developed dramatically for simple atomic systems such as hydrogen. However, a range of anomalies has…”
Get full text

Scattering factor calculations and dispersion corrections for heavy atoms by Chantler, C.T.

“…Reliable knowledge of the complex X-ray form factor (Re( f) and Im( f)) is required for crystallography, deformation density bonding studies and refractive…”
Get full text

Atomic cluster-structure calculations of the X-ray near-edge absorption of silver by Cosgriff, E.C., Chantler, C.T., Witte, C., Smale, L.F., Tran, C.Q.

“…A development of the finite difference method is used to compute atomic-cluster absorption spectra. The spectra is compared with recent high-precision…”
Get full text

Polarization measurements on a magnetic quadrupole line in Ne-like barium by Takács, E, Meyer, ES, Gillaspy, JD, Roberts, JR, Chantler, CT, Hudson, LT, Deslattes, RD, Brown, CM, Laming, JM, Dubau, J, Inal, MK

Get full text

New theoretical investigation resolving discrepancies of atomic form factors and attenuation coefficients in the near-edge soft X-ray regime by Chantler, C.T.

“…Reliable knowledge of the complex X-ray form factor and the photoelectric attenuation coefficient is required for crystallography, medical diagnosis, radiation…”
Get full text

Quantitative determination of major systematics in synchrotron x-ray experiments: seeing through harmonic components by Tran, C. Q., Barnea, Z., de Jonge, M. D., Dhal, B. B., Paterson, D., Cookson, D. J., Chantler, C. T.

“…In line with an ongoing programme to determine accurately x‐ray attenuation coefficients, we have developed a method for the quantitative determination of the…”
Get full text

Characterization of K α spectral profiles for vanadium, component redetermination for scandium, titanium, chromium, and manganese, and development of satellite structure for Z = 21 to Z = 25 by Chantler, C. T., Kinnane, M. N., Su, C.-H., Kimpton, J. A.

Get full text

Resolution of discrepancies of atomic form factors and attenuation coefficients in the near-edge soft X-ray regime by Chantler, C.T

“…X-rays interactions with atoms should be well understood quantitatively. Reliable knowledge of the complex X-ray form factor (Re( f) and f″) and the…”
Get full text

Monitoring fluctuations at a synchrotron beamline using matched ion chambers: 2. isolation of component noise sources, and application to attenuation measurements showing increased precision by two orders of magnitude by Chantler, C. T., Tran, C. Q., Paterson, D., Cookson, D. J., Barnea, Z.

“…The significance of statistical fluctuations in a synchrotron beam is often neglected, with a consequent loss of precision or accuracy of up to two orders of…”
Get full text

A curved crystal spectrometer for energy calibration and spectral characterization of mammographic x-ray sources by Hudson, L T, Deslattes, R D, Henins, A, Chantler, C T, Kessler, E G, Schweppe, J E

“…Clinical efficacy of diagnostic radiology for mammographic examinations is critically dependent on source characteristics, detection efficiency, image…”
Get more information

Direct observation of scattering contributions in X-ray attenuation measurements, and evidence for Rayleigh scattering from copper samples rather than thermal-diffuse or Bragg–Laue scattering by Chantler, C.T., Tran, C.Q., Paterson, D., Barnea, Z., Cookson, D.J.

“…High-precision attenuation measurements can now lead to a direct assessment of scattering models in the X-ray regime. This is true not just at high energies…”
Get full text

Measurement of the x-ray mass attenuation coefficient of copper using 8.85–20 keV synchrotron radiation by Chantler, C. T., Tran, C. Q., Barnea, Z., Paterson, D., Cookson, D. J., Balaic, D. X.

Get full text

Measurement 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 range by de Jonge, Martin D., Tran, Chanh Q., Chantler, Christopher T., Barnea, Zwi, Dhal, Bipin B., Cookson, David J., Lee, Wah-Keat, Mashayekhi, Ali

“…We use the x-ray extended-range technique (XERT) [Chantler et al., Phys. Rev. A 64, 062506 (2001)] to measure the mass attenuation coefficients of molybdenum…”
Get full text

Flat and curved crystal spectrography for mammographic X-ray sources by CHANTLER, C. T, DESLATTES, R. D, HENINS, A, HUDSON, L. T

“…The demand for improved spectral understanding of mammographic X-ray sources and non-invasive voltage calibration of such sources has led to research into…”
Get full text

Measurement of the x-ray mass attenuation coefficient and the imaginary part of the form factor of silicon using synchrotron radiation by Tran, C. Q., Chantler, C. T., Barnea, Z., Paterson, D., Cookson, D. J.

“…We used the x-ray extended-range technique to measure the x-ray mass attenuation coefficients of silicon with an accuracy between 0.27% and 0.5% in the 5…”
Get full text