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828 Newest Publications in journal of synchrotron radiation

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In vivo pink‐beam imaging and fast alignment procedure for rat brain tumor radiation therapy

03-Dec-2015 | Christian Nemoz, Astrid Kibleur, Jean Noël Hyacinthe, Gilles Berruyer, Thierry Brochard, Elke Bräuer‐Krisch, Géraldi ..., Journal of Synchrotron Radiation, 2015

A fast positioning method for brain tumor microbeam irradiations for preclinical studies at third‐generation X‐ray sources is described. The three‐dimensional alignment of the animals relative to the X‐ray beam was based on the X‐ray tomography multi‐slices after iodine infusion. This method ...

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Local structure of Ge quantum dots determined by combined numerical analysis of EXAFS and XANES data

03-Dec-2015 | Yuanpeng Zhang, Osman Ersoy, Ali Karatutlu, William Little, Andrei Sapelkin, Journal of Synchrotron Radiation, 2015

The sensitivity of X‐ray absorption near‐edge structure (XANES) to the local symmetry has been investigated in small (∼4 nm) matrix‐free Ge quantum dots. The FDMNES package was used to calculate the theoretical XANES spectra that were compared with the experimental data of as‐prepared and ...

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A nearly on‐axis spectroscopic system for simultaneously measuring UV–visible absorption and X‐ray diffraction in the SPring‐8 structural genomics beamline

03-Dec-2015 | Miyuki Sakaguchi, Tetsunari Kimura, Takuma Nishida, Takehiko Tosha, Hiroshi Sugimoto, Yoshihiro Yamaguchi, Sachiko Y ..., Journal of Synchrotron Radiation, 2015

UV–visible absorption spectroscopy is useful for probing the electronic and structural changes of protein active sites, and thus the on‐line combination of X‐ray diffraction and spectroscopic analysis is increasingly being applied. Herein, a novel absorption spectrometer was developed at ...

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Measurement of synchrotron‐radiation‐excited Kossel patterns

03-Dec-2015 | G. Bortel, G. Faigel, M. Tegze, A. Chumakov, Journal of Synchrotron Radiation, 2015

Kossel line patterns contain information on the crystalline structure, such as the magnitude and the phase of Bragg reflections. For technical reasons, most of these patterns are obtained using electron beam excitation, which leads to surface sensitivity that limits the spatial extent of the ...

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A Monte Carlo study of high‐energy photon transport in matter: application for multiple scattering investigation in Compton spectroscopy

03-Dec-2015 | Marek Brancewicz, Masayoshi Itou, Yoshiharu Sakurai, Journal of Synchrotron Radiation, 2015

The first results of multiple scattering simulations of polarized high‐energy X‐rays for Compton experiments using a new Monte Carlo program, MUSCAT, are presented. The program is developed to follow the restrictions of real experimental geometries. The new simulation algorithm uses not only ...

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Structural investigation of mM Ni(II) complex isomers using transmission XAFS: the significance of model development

27-Oct-2015 | M. Tauhidul Islam, Christopher T. Chantler, Mun Hon Cheah, Lachlan J. Tantau, Chanh Q. Tran, Stephen P. Best, Journal of Synchrotron Radiation, 2015

High‐accuracy transmission XAFS determined using the hybrid technique has been used to refine the geometries of bis(N‐n‐propyl‐salicylaldiminato) nickel(II) (n‐pr Ni) and bis(N‐i‐propyl‐salicylaldiminato) nickel(II) (i‐pr Ni) complexes which have approximately square planar and tetrahedral metal ...

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A strenuous experimental journey searching for spectroscopic evidence of a bridging nickel–iron–hydride in [NiFe] hydrogenase

23-Oct-2015 | Hongxin Wang, Yoshitaka Yoda, Hideaki Ogata, Yoshihito Tanaka, Wolfgang Lubitz, Journal of Synchrotron Radiation, 2015

Direct spectroscopic evidence for a hydride bridge in the Ni–R form of [NiFe] hydrogenase has been obtained using iron‐specific nuclear resonance vibrational spectroscopy (NRVS). The Ni–H–Fe wag mode at 675 cm−1 is the first spectroscopic evidence for a bridging hydride in Ni–R as well as the ...

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Sorting algorithms for single‐particle imaging experiments at X‐ray free‐electron lasers

22-Oct-2015 | S. A. Bobkov, A. B. Teslyuk, R. P. Kurta, O. Yu. Gorobtsov, O. M. Yefanov, V. A. Ilyin, R. A. Senin, I. A. Vartanyants, Journal of Synchrotron Radiation, 2015

Modern X‐ray free‐electron lasers (XFELs) operating at high repetition rates produce a tremendous amount of data. It is a great challenge to classify this information and reduce the initial data set to a manageable size for further analysis. Here an approach for classification of diffraction ...

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The time‐resolved and extreme conditions XAS (TEXAS) facility at the European Synchrotron Radiation Facility: the general‐purpose EXAFS bending‐magnet beamline BM23

19-Oct-2015 | O. Mathon, A. Beteva, J. Borrel, D. Bugnazet, S. Gatla, R. Hino, I. Kantor, T. Mairs, M. Munoz, S. Pasternak, F. Per ..., Journal of Synchrotron Radiation, 2015

BM23 is the general‐purpose EXAFS bending‐magnet beamline at the ESRF, replacing the former BM29 beamline in the framework of the ESRF upgrade. Its mission is to serve the whole XAS user community by providing access to a basic service in addition to the many specialized instruments available at ...

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Structural characterization and low‐temperature properties of Ru/C multilayer monochromators with different periodic thicknesses

19-Oct-2015 | Hui Jiang, Yan He, Yumei He, Aiguo Li, Hua Wang, Yi Zheng, Zhaohui Dong, Journal of Synchrotron Radiation, 2015

Ru/C multilayer monochromators with different periodic thicknesses were investigated using X‐ray grazing‐incidence reflectivity, diffuse scattering, Bragg imaging, morphology testing, etc. before and after cryogenic cooling. Quantitative analyses enabled the determination of the key multilayer ...

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