forthcoming articles

The following articles are a selection of those recently accepted for publication in Journal of Synchrotron Radiation.

See also Forthcoming articles in all IUCr journals.

Accepted 29 November 2016

The SPECIES beamline at the MAX IV Laboratory: a facility for soft X-ray RIXS and APXPS

SPECIES, the soft X-ray beamline for resonant inelastic scattering and ambient-pressure photoelectron spectroscopy at MAX IV, is described.

Accepted 21 November 2016

Surface science at the PEARL beamline of the Swiss Light Source

The Photo-Emission and Atomic Resolution Laboratory is a new soft X-ray beamline at the Swiss Light Source for the study of surface structure using photoelectron diffraction and scanning tunneling microscopy.

Accepted 20 November 2016

Protein crystallography beamline BL2S1 at the Aichi synchrotron

The protein crystallography beamline BL2S1 has been constructed on the 5 T superbend port of the AichiSR.

Accepted 18 November 2016

Comparison of helical scan and standard rotation methods in single-crystal X-ray data collection strategies

Helical scans are compared with standard rotation methods in single-crystal X-ray diffraction experiments and, for certain cases, the helical scan methods improve the quality of the diffraction data and the electron density maps.

Accepted 17 November 2016

Uridine as a new scavenger for synchrotron-based structural biology techniques

The protective properties of uridine against radiation damage for small-angle X-ray scattering and macromolecular crystallography experiments at room temperature are shown. The scavenging effect of uridine is similar to, or more pronounced than, the most commonly used scavengers.

Accepted 11 November 2016

Bunch-by-bunch position measurement and analysis at PLS-II

Accepted 11 November 2016

AI-BL1.0: a program for automatic on-line beamline optimization using the evolutionary algorithm

An open-source Labview-based program for automatic on-line beamline optimization using an evolutionary algorithm is reported.

Accepted 8 November 2016

Design of a multilayer-based collimated plane-grating monochromator for tender X-ray range

A multilayer-based collimated plane-grating monochromator (cPGM) with efficiency one order of magnitude higher than the traditional cPGM is proposed for the tender X-ray range. The resolving power can also be increased with improved photon flux by using a large blaze angle and working at high diffraction order.

Accepted 7 November 2016

Design of a prototype split-and-delay unit for XFEL pulses, and their evaluation by synchrotron radiation X-rays

A prototype split-and-delay unit (SDU) for XFEL pulses was designed based on the Graeff–Bonse four-Bragg-reflection interferometer by installing 12.5° slopes and evaluated by synchrotron radiation X-rays. The ease of the tunability of the exact delay time across 0 fs by the present SDU was demonstrated.

Accepted 7 November 2016

Automatic processing of multimodal tomography datasets

Multimodal chemical tomography is a technique that has to deal with a variety of big (>100 GB) datasets. Here, a novel method for approaching the analysis of such data using a Python-based big data solution is presented.

Accepted 5 November 2016

Generation of apodized X-ray illumination and its application to scanning and diffraction microscopy

Apodized X-ray illumination generated by a two-stage deformable Kirkpatrick–Baez mirror system was employed to improve the image quality in scanning X-ray fluorescence microscopy. It is also demonstrated that the apodized X-ray illumination enables non-isolated objects to be imaged by coherent X-ray diffractive imaging in a non-scanning mode.

Accepted 4 November 2016

Medium-energy microprobe station at the SXRMB of the CLS

The microprobe station of the SXRMB is described. A set of Kirkpatrick–Baez mirrors is used to focus the beam to a 10 µm × 10 µm spot. The beamline covers a photon energy range of 1.7–10 keV and it is optimized for several not-easily accessible elements such as Si, P and S.

Accepted 2 November 2016

X-ray grating interferometer for in situ and at-wavelength wavefront metrology

An X-ray grating interferometry setup for wavefront metrology measurements at synchrotron and X-ray free-electron laser facilities and exemplary measurements are reported.

Accepted 1 November 2016

Bragg coherent diffraction imaging and metrics for radiation damage in protein micro-crystallography

A combination of Bragg coherent diffractive imaging and reciprocal-space mapping results indicate that the global radiation damage behaviour of micro-crystals is different compared with macroscale crystals.

Accepted 1 November 2016

Performance of photoelectron spin polarimeters with continuous and pulsed sources: from storage rings to free electron lasers

The experimental uncertainties concerning electron spin polarization under various realistic measurement conditionse are theoretically derived. Supported by numerical simulations, these results define new mathematical instruments for handling the correct statistics of spin polarization measurements in the presence of source intensity fluctuations and are applied to the characteristics of a wide set of state-of-the-art facilities.

Accepted 28 October 2016

Conformational variation of proteins at room temperature is not dominated by radiation damage

The conformational variation of three different proteins as a function of dose is examined at 278 and 100 K.

Accepted 26 October 2016

Analytic expressions for the angular and the spectral fluxes at Compton X-ray sources

Accepted 24 October 2016

Direct tomography imaging for inelastic X-ray scattering experiments at high pressure

Accepted 24 October 2016

Miniature diamond anvils for X-ray Raman scattering spectroscopy experiments at high pressure

Limitations arise for the pressure range where high quality data can be recorded with X-ray Raman scattering spectroscopy. To overcome such issues, miniature diamond anvils of less than 500 µm thickness that can sustain pressure of 70 GPa with large opening enabling high scattering geometry have been developed. On beamline ID20 at the ESRF, data of unprecedented quality were collected on the silicon L-edge and oxygen K-edge in SiO2 glass up to 47 GPa.

Accepted 19 October 2016

OH cleavage from tyrosine: debunking a myth

A systematic macromolecular crystallography investigation into the observed electron density loss around the –OH group of tyrosines, as a function of dose at 100 K, is reported. It is concluded that a probable explanation is aromatic ring disordering as opposed to –OH cleavage; occurrence of the latter mechanism is a misconception perpetuated in radiation damage literature, and is unsupported by any observations in radiation chemistry.

Accepted 17 October 2016

A practical local tomography reconstruction algorithm based on a known sub-region

A method for reducing the cupping effect in local tomography based on a known region is proposed.

Accepted 4 October 2016

Qu­antitative characterization of the X-ray beam at the Australian Synchrotron Imaging and Medical Beamline (IMBL)

A comprehensive model of the Imaging and Medical Beamline at the Australian Synchrotron has been developed, validated against a variety of experimental measurements, and its versatility, reliability and robustness demonstrated. The results presented are of particular relevance in X-ray imaging, tomography, radiotherapy and dosimetry.

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