Search Results - "WILLIS, B. T. M"

Neutron Diffraction Studies of U4O9: Comparison with EXAFS Results by Garrido, F, Hannon, A. C, Ibberson, R. M, Nowicki, L, Willis, B. T. M

“…Conradson et al. have analyzed X-ray absorption fine-structure spectra of the UO2−U4O9 system and concluded that oxygen atoms are incorporated in U4O9 as oxo…”
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Refinement of the structure of β-U4O9 by Cooper, R. I., Willis, B. T. M.

“…β‐U4O9 is a superlattice structure based on the fluorite arrangement of UO2. The U atoms occupy positions close to those in UO2 and the additional O atoms are…”
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Glancing-angle x-ray absorption spectroscopy of corroded borosilicate glass surfaces containing uranium by Greaves, G. N, Barrett, N. T, Antonini, G. M, Thornley, F. R, Willis, B. T. M, Steel, A

“…The local atomic structure surrounding uranium in borosilicate glass has been investigated by fluorescence x-ray absorption spectroscopy. By employing angles…”
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U4O9: atoms in general sites giving the hkl extinctions of special sites by Popa, N. C., Willis, B. T. M.

“…In U4O9, most of the atoms are in general 48‐fold [48(e)] sites of the space group I3d and yet the hkl reflections obey the extinction rules for atoms…”
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Micro-macro property correlation in cubic crystals by BUTT, N. M, BASHIR, J, NASIR KHAN, M, WILLIS, B. T. M

“…Properties of materials at the microscopic level are well described by quantum mechanics while classical mechanics deals with macroscopic behaviour. Research…”
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Neutron diffraction studies of the actinide oxides I. Uranium dioxide and thorium dioxide at room temperature by Willis, B. T. M.

“…Three-dimensional neutron structure factors have been measured on single crystals grown from the melt and from solution. The Bragg reflexions divide into three…”
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Thermal Diffuse Scattering in Angular-Dispersive Neutron Diffraction by Popa, N. C., Willis, B. T. M.

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Phonons observed by Laue diffraction on a continuous neutron source by McIntyre, G. J., Kohlmann, H., Willis, B. T. M.

“…Abstract only…”
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Cuboctahedral oxygen clusters in U3O7 by Garrido, F., Ibberson, R.M., Nowicki, L., Willis, B.T.M.

“…When UO2 is oxidised to U3O7, the positions in the crystal lattice of all the uranium atoms and of about 70% of the oxygen atoms are hardly affected. The…”
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Neutron Diffraction Studies of U 4 O 9 : Comparison with EXAFS Results by Garrido, F., Hannon, A. C., Ibberson, R. M., Nowicki, L., Willis, B. T. M.

“…Conradson et al.1 have analyzed X-ray absorption fine-structure spectra of the UO$_2$-U$_4$O$_9$ system and concluded that oxygen atoms are incorporated in…”
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An optical method of studying the diffraction from imperfect crystals III. Layer structures with stacking faults by Willis, B. T. M.

“…The reciprocal lattice intensity distribution has been determined quantitatively using a photomultiplier to measure the optical diffraction intensities. The…”
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An optical method of studying the diffraction from imperfect crystals II. Crystals with dislocations by Willis, B. T. M.

“…Lipson’s optical diffractometer has been used to determine the diffraction patterns of gratings representing crystals with dislocations. The optical method…”
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An optical method of studying the diffraction from imperfect crystals I. Modulated structures by Willis, B. T. M.

“…The correspondence between the X-ray diffraction pattern of a crystal and the optical diffraction pattern of a two-dimensional grating has been used to…”
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Refinement of the structure of β-U 4 O 9 by Cooper, R. I., Willis, B. T. M.

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U 4 O 9 : atoms in general sites giving the hkl extinctions of special sites by Popa, N. C., Willis, B. T. M.

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Anharmonic vibration and forbidden reflexions in silicon and germanium by Dawson, B., Willis, B. T. M.

“…An appraisal is given of antisymmetric features of vibrational anharmonicity in Ge and Si which could be manifested by Bragg reflexions in neutron diffraction…”
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Screw Dislocations in Quartz by WILLIS, B. T. M

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Diffraction from Dislocations by SUZUKI, T, WILLIS, B. T. M

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Some achievements in neutron crystallography: 50 years of Acta Crystallographica and the IUCr: cristallography across the sciences by WILLIS, B. T. M

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Crystal Structure and Magnetic Properties of Cobalt Ferrite at Low Temperatures by ROOKSBY, H. P, WILLIS, B. T. M

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