New mounting method of diamond monochromator for high brilliance synchrotron radiation

Takiya, Toshio; Sugiyama, Hiroshi; Zhang, Xiaowei; Shimada, Shoichi; Yamazato, Kunihiko; Komura, Akio; Ando, Masami

doi:10.1063/1.1149954

Cited by 6 publications

(3 citation statements)

References 9 publications

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“…Among the tetrahedrally bonded solids, diamond, with its high X-ray transparency, high thermal conductivity and low coefficient, is attracting particular attention for use as an optical element for beamlines of synchrotron radiation and the forthcoming fourth-generation sources. Applications range from X-ray monochromators for high-brilliance synchrotron sources (Freund et al, 2001;Pal'yanov et al, 2000;Takiya et al, 1999), filters and vacuum windows for coherence preservation, phase plates for polarization transformation (Giles et al, 1994(Giles et al, , 1995, anvil cells for high-pressure experiments, and recent developments are pointing towards solidstate radiation detectors (Tanaka et al, 2001). The present and future needs of synthetic diamond samples were discussed in connection with X-ray source requirements in a recent workshop at the European Synchrotron Radiation Facility (ESRF) in Grenoble (Hä rtwig, 2004).…”

Section: Introductionmentioning

confidence: 99%

Diamond thermal expansion measurement using transmitted X-ray back-diffraction

et al. 2005

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The linear thermal expansion coefficient of diamond has been measured using forward-diffracted profiles in X-ray backscattering. This experimental technique is presented as an alternative way of measuring thermal expansion coefficients of solids in the high-resolution Bragg backscattering geometry without the intrinsic difficulty of detecting the reflected beam. The temperature dependence of the lattice parameter is obtained from the high sensitivity of the transmitted profiles to the Bragg angle variation with temperature. The large angular width of the backscattering profiles allows the application of this technique to mosaic crystals with high resolution. As an application of this technique the thermal expansion coefficient of a synthetic type-Ib diamond (110) single crystal was measured from 10 to 300 K. Extremely low values (of the order of 1 x 10(-7) +/- 5 x 10(-7)) for the linear thermal expansion coefficient in the temperature range from 30 to 90 K are in good agreement with other reported measurements.

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Section: Introductionmentioning

confidence: 99%

Diamond thermal expansion measurement using transmitted X-ray back-diffraction

et al. 2005

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“…Theoretical estimates of efficiency of the diamond monochromators are presented in [21], the first practical application of diamonds for monochromatization of SR beam was performed at the ESRF European Synchrotron Radiation Facility (Grenoble, France) [22][23][24]. Later, diamond monochromators were mounted on high-brilliance undulator channels at the APS (USA) [25] and Spring-8 (Japan) sources [26,27]. Diamond has a high heat capacity and a good thermal conductivity, it is stable to X-ray radiation; thus, diamond monochromators are ideal for the application on high intensity SR beams.…”

Section: Equipment Of Experimental Stations For High Precision Powdermentioning

confidence: 99%

High precision X-ray diffraction studies of polycrystalline materials on synchrotron radiation

Shmakov

2012

J Struct Chem

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The review is devoted to application of synchrotron radiation (SR) for studying the structure of polycrystalline materials. The main emphasis is made on the equipment and techniques for acquiring high precision structural information -high angular resolution powder diffractometry and the use of anomalous scattering effect in structural studies. Various schemes of recording the high resolution X-ray patterns are presented, diffractometers operating in the world's leading synchrotron radiation centers are described, and examples of particular applications are reported. S134 space, simplicity and reliability of such X-ray radiation source provided its wide use. X-ray tubes with Ti, Cr, Fe, Co, Ni, Cu, Mo and Ag anodes are intensively employed in modern lab-scale diffractometers.The radiation intensity of X-ray tube is limited by the efficiency of heat removal from the anode. At the average anode current of 100 mA and voltage of 100 kV, a 10 kW power is released at the ∼1 mm 2 anode area. In the process, no more than 3% of the power is re-emitted in the X-ray range. Such mode of operation can be provided only by the tubes with a rotating anode, where the released power is distributed over a large surface area of the anode. At the same time, intensity of the radiation source determines numerous parameters of an X-ray diffractometer -the acquisition time of X-ray pattern, angular resolution, sensitivity of X-ray diffraction analysis, accuracy of experimental data, etc. Improvement of the source would open a way to radically new possibilities of X-ray diffraction studies.In the middle of the last century, the development of elementary particle physics resulted in creating the cyclic accelerators and then the storage rings, where charged high-energy particles follow the closed trajectories and collide at a site where beams meet to generate fluxes of particles -products of the interaction. Such experimental scheme provides a double gain in energy as compared to the case when accelerated particles are directed to a stationary heavy target. The particle flux density in counter beams is much lower than density of the target, so the probability of particles collision is also much lower. Nevertheless, the multiple -several million times a second -repetition of beam collisions gives an acceptable statistics for reasonable times. If the colliding particles have equal weights and opposite charges, counter beams can be stored in a single ring chamber, dimensions of the setup being halved at the retained energy of the particles. Cyclic colliders are very productive devices for elementary particle physics; however, a serious problem arose at the early stage of their applicationlosses of particle energy for radiation [4].Motion of a charged particle along a curved trajectory is accompanied by emission of electromagnetic radiation, the so-called magnetodeceleration or synchrotron radiation. Designers of cyclic accelerators tried to minimize the radiation losses, which resulted mainly in an increased size of setups; these losses were c...

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“…5,6) On the other hand, diamond and diamond-like carbon (DLC), which have high thermal conductivity and high specific stiffness, are more suitable than silicon as materials for micromechanical parts such as styluses, probes, springs, cantilevers, and dies. [9][10][11][12] FIB milling generates ripples on the substrate surface in some cases of inclined beam incidence. [13][14][15] This will become a problem in three-dimensional fabrication using an FIB, because ripples are formed on the surface of a threedimensional object when it is inclined at approximately 60 with respect to the ion beam.…”

Section: Introductionmentioning

confidence: 99%

Surface Morphology of Diamond-Like Carbon Film and Si Wafer Milled with 30 keV Gallium Focused Ion Beam

Kaito¹,

Yasutake²,

Yasaka³

et al. 2010

Jpn. J. Appl. Phys.

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According to the controversial results of recent experiments for fifth force, we present a classification of all possible types of theories leading to non-Newtonian forces. The theoretical analysis shows that if the interaction potential differs from the Newton's law the interactions of macro-and micro-bodies are in gen-eral distinguishable. The calculation as0 shows that Long's result can be improved by several orders if the new method proposed ie used. PACS: 04.90.+e, 12.25.+e

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New mounting method of diamond monochromator for high brilliance synchrotron radiation

Cited by 6 publications

References 9 publications

Diamond thermal expansion measurement using transmitted X-ray back-diffraction

Diamond thermal expansion measurement using transmitted X-ray back-diffraction

High precision X-ray diffraction studies of polycrystalline materials on synchrotron radiation

Surface Morphology of Diamond-Like Carbon Film and Si Wafer Milled with 30 keV Gallium Focused Ion Beam

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