نتایج جستجو برای: beamline
تعداد نتایج: 2367 فیلتر نتایج به سال:
A high-flux insertion device and beamline for macromolecular crystallography has been built at the National Synchrotron Light Source (NSLS) that employs a mini-gap undulator source developed by the NSLS. The mini-gap undulator at beamline X29 is a hybrid-magnet device of period 12.5 mm operating at proven gaps of 3.3-10 mm. The beamline provides hard X-rays for macromolecular crystallography ex...
The concepts and technical realisation of the high-resolution soft X-ray beamline ADRESS operating in the energy range from 300 to 1600 eV and intended for resonant inelastic X-ray scattering (RIXS) and angle-resolved photoelectron spectroscopy (ARPES) are described. The photon source is an undulator of novel fixed-gap design where longitudinal movement of permanent magnetic arrays controls not...
The 3 m toroidal grating monochromator (TGM) VUV beamline at CAMD/LSU was realigned to achieve better illumination of the monochromator gratings with the goal of substantially increasing the fl ux at the higher photon energies. This is partly accomplished through a tilting of the monochromator (by about of 13.5°), with respect to the plane defi ned by the synchrotron, providing a smaller grazin...
An infrared (IR) beamline, BL43IR, at SPring-8 has been constructed for IR spectroscopies under extreme conditions. The beamline covers a very wide photon energy range in the IR region and offers a brilliant IR photon beam to the experimental end stations. The IR light from SPring-8 is collected by a newly designed optical system including a so-called ‘‘magic mirror’’. The design of the optical...
We discuss a new optical configuration for a hard X-ray imaging beamline that allows one to obtain a secondary source of variable size by using two asymmetrically cut bent silicon crystals in Laue geometry. A feature of this set-up is that radiation from the secondary source propagates parallel to the direction of the incident radiation. Preliminary aspects of the design for the imaging beamlin...
Synchrotron radiation study of the relation between structure and strain in polyurethane elastomers.
This paper describes a system for the study of the relation between structure and applied strain in thermoplastic polyurethane elastomers using the Australian National Beamline Facility at the Photon Factory, KEK, Tsukuba, Japan. The system uses the sagittal focusing monochromator at beamline 20B to provide a high-intensity focused beam which then falls on the specimen mounted in a miniature te...
The successful operation of a Two-Beam accelerator based on extended relativistic klystrons hinges upon decreasing the cumulative dipole BBU growth from an exponential to a more manageable linear growth rate. We describe the theoretical scheme to achieve this, and a new experiment to test this concept. The experiment utilizes a 1-MeV, 600-Amp, 200-ns electron beam and a short beamline of period...
Beamline I22 at Diamond Light Source is dedicated to the study of soft-matter systems from both biological and materials science. The beamline can operate in range 3.7 keV 22 for transmission SAXS 14 20 microfocus with beam sizes 240 µm × 60 [full width half-maximum (FWHM) horizontal (H) vertical (V)] sample main beamline, approximately 10 microfocusing platform. There a versatile platform acco...
Three-dimensional structures derived from X-ray diffraction of protein crystals provide a wealth of information. Features and interactions important for the function of macromolecules can be deduced and catalytic mechanisms postulated. Still, many questions can remain, for example regarding metal oxidation states and the interpretation of `mystery density', i.e. ambiguous or unknown features wi...
NW14A is a newly constructed undulator beamline for 100 ps time-resolved X-ray experiments at the Photon Factory Advanced Ring. This beamline was designed to conduct a wide variety of time-resolved X-ray measurements, such as time-resolved diffraction, scattering and X-ray absorption fine structure. Its versatility is allowed by various instruments, including two undulators, three diffractomete...
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