Journal of Synchrotron Radiation

Volume 15, Part 2 (March 2008)



[Issue Author Index][Volume Author Index]
[Cover illustration] Cover illustration: X-ray fluorescence imaging of tooth sections performed at the APS reveals that mercury from dental amalgams migrates through human teeth to an area with an active bloodstream (see Harris, Vogt, Eastgate, Legnini, Hornberger, Cai, Lai and Lay, pages 123-128). The mercury map (bottom left) also indicates that mercury accumulates in calculus on the right-hand side of the tooth. Hg L3-edge MicroXANES (bottom right) indicates that mercury is chemically altered either during or after the transport process.

research papers


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J. Synchrotron Rad. (2008). 15, 123-128  [ doi:10.1107/S0909049507061468 ]

Migration of mercury from dental amalgam through human teeth

H. H. Harris, S. Vogt, H. Eastgate, D. G. Legnini, B. Hornberger, Z. Cai, B. Lai and P. A. Lay

Synopsis: The distributions of the metals Hg, Zn and Cu in sections of amalgam-filled human teeth have been mapped using an X-ray fluorescence microprobe. The results indicate significant migration of mercury from the restoration through the tooth towards an area with an active bloodstream.

Online 19 February 2008


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J. Synchrotron Rad. (2008). 15, 129-133  [ doi:10.1107/S0909049507064126 ]

Local structure investigation of the active site of the imidazolonepropionase from Bacillus subtilis by XANES spectroscopy and ab initio calculations

F. Yang, W. Chu, M. Yu, Y. Wang, S. Ma, Y. Dong and Z. Wu

Synopsis: The fine structure around the Zn site in imidazolonepropionase from Bacillus subtilis, which supports better the nucleophilic attack catalytic mechanism for this enzyme, has been determined.

PDB reference: 2bb0

Online 19 February 2008


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J. Synchrotron Rad. (2008). 15, 134-139  [ doi:10.1107/S0909049507066083 ]

A Shack-Hartmann measuring head for the two-dimensional characterization of X-ray mirrors

J. Floriot, X. Levecq, S. Bucourt, M. Thomasset, F. Polack, M. Idir, P. Mercère, T. Moreno and S. Brochet

Synopsis: A stitching Shack-Hartmann measuring head for the two-dimensional characterization of X-ray mirrors is presented. Its submicroradian performances are established and experimental results of a toroidal X-ray mirror are given.

Online 19 February 2008


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J. Synchrotron Rad. (2008). 15, 140-143  [ doi:10.1107/S0909049507066368 ]

Evaluation of two methods to minimize the anticlastic curvature of cylindrical bent crystals

L. Feng, L. Kang, Z. Li, F. Zhao and C. Xu

Synopsis: A scanning dynamically focusing sagittal X-ray monochromator accepting 3 mrad × 0.1 mrad from a 6 T wiggler has been designed for XAFS measurements.

Online 19 February 2008


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J. Synchrotron Rad. (2008). 15, 144-150  [ doi:10.1107/S090904950706565X ]

Fatigue life prediction for high-heat-load components made of GlidCop by elastic-plastic analysis

S. Takahashi, M. Sano, T. Mochizuki, A. Watanabe and H. Kitamura

Synopsis: A procedure to predict the fatigue life of high-heat-load components made of GlidCop to within a factor of two has been successfully established.

Online 19 February 2008


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J. Synchrotron Rad. (2008). 15, 151-157  [ doi:10.1107/S0909049508000630 ]

The attachment of amino fragment to purine: inner-shell structures and spectra

S. Saha, F. Wang, J. B. MacNaughton, A. Moewes and D. P. Chong

Synopsis: The impact of the amino fragment attachment on the inner-shell structures and spectra of unsubstituted purine and the purine ring of adenine is studied using density functional theory.

Online 19 February 2008


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J. Synchrotron Rad. (2008). 15, 158-161  [ doi:10.1107/S0909049508002938 ]

An attempt at kidney stone analysis with the application of synchrotron radiation

J. Siritapetawee and W. Pattanasiriwisawa

Synopsis: The feasibility and possibility of XANES for measuring the K-edge spectra of trace elements (sulfur, phosphorus and calcium) contained in human kidney stones are described.

Online 19 February 2008


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J. Synchrotron Rad. (2008). 15, 162-169  [ doi:10.1107/S0909049508001696 ]

An extraction algorithm for core-level excitations in non-resonant inelastic X-ray scattering spectra

H. Sternemann, C. Sternemann, G. T. Seidler, T. T. Fister, A. Sakko and M. Tolan

Synopsis: Presentation and demonstration of an extraction algorithm for core-level excitations in non-resonant inelastic X-ray scattering.

Online 19 February 2008


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J. Synchrotron Rad. (2008). 15, 170-175  [ doi:10.1107/S0909049507063510 ]

Fabrication of high-aspect-ratio Fresnel zone plates by e-beam lithography and electroplating

Y. T. Chen, T. N. Lo, C. W. Chiu, J. Y. Wang, C. L. Wang, C. J. Liu, S. R. Wu, S. T. Jeng, C. C. Yang, J. Shiue, C. H. Chen, Y. Hwu, G. C. Yin, H. M. Lin, J. H. Je and G. Margaritondo

Synopsis: The fabrication of gold Fresnel zone plates, by a combination of e-beam lithography and electrodeposition, with a 30 nm outermost zone width and a 450 nm-thick structure is described.

Online 19 February 2008


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J. Synchrotron Rad. (2008). 15, 176-184  [ doi:10.1107/S090904950800068X ]

Diffraction theory applied to X-ray imaging with clessidra prism array lenses

L. De Caro and W. Jark

Synopsis: It is shown that the diffraction in highly regular prism arrays of the clessidra (hourglass) type in a completely spatially coherent incident X-ray beam is of the Fresnel (near-field) type, which will theoretically allow these lenses to operate with the diffraction-limited spatial resolution expected for their large aperture.

Online 19 February 2008


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J. Synchrotron Rad. (2008). 15, 185-190  [ doi:10.1107/S0909049508002598 ]

Simultaneous birefringence, small- and wide-angle X-ray scattering to detect precursors and characterize morphology development during flow-induced crystallization of polymers

L. Fernandez-Ballester, T. Gough, F. Meneau, W. Bras, F. Ania, F. J. Balta-Calleja and J. A. Kornfield

Synopsis: An experimental set-up is presented which combines simultaneous optical and X-ray scattering measurements with a short-term shearing apparatus for studying polymer flow-induced crystallization. Optical measurements provide sufficient sensitivity to detect the formation of oriented precursors during flow, while their impact on morphology development after flow cessation can be quantified with X-ray scattering.

Online 19 February 2008


short communications


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J. Synchrotron Rad. (2008). 15, 191-194  [ doi:10.1107/S0909049508000587 ]

Science experiments via telepresence at a synchrotron radiation source facility

J. E. Warren, G. Diakun, G. Bushnell-Wye, S. Fisher, A. Thalal, M. Helliwell and J. R. Helliwell

Synopsis: The application of a turnkey communication system for telepresence at station 9.8 of the Synchrotron Radiation Source, Daresbury, is described and demonstrated, including its use for inter-continental classroom instruction and user training.

Online 19 February 2008


current events


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J. Synchrotron Rad. (2008). 15, 195-197  [ doi:10.1107/S090904950800407X ]

Current events

Online 19 February 2008


 

J. Synchrotron Rad. (2008). 15, 198

forthcoming meetings and short courses


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