Journal•ISSN: 0895-7959
High Pressure Research
Taylor & Francis
About: High Pressure Research is an academic journal published by Taylor & Francis. The journal publishes majorly in the area(s): Diamond anvil cell & Hydrostatic pressure. It has an ISSN identifier of 0895-7959. Over the lifetime, 2417 publications have been published receiving 29921 citations. The journal is also known as: High pressure research (Online).
Topics: Diamond anvil cell, Hydrostatic pressure, Phase transition, Raman spectroscopy, Phase (matter)
Papers published on a yearly basis
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TL;DR: Calibration methods and software have been developed for single crystal diffraction experiments, using both approaches for calibrate, and apply corrections, to obtain accurate angle and intensity information.
Abstract: Detector systems introduce distortions into acquired data. To obtain accurate angle and intensity information, it is necessary to calibrate, and apply corrections. Intensity non-linearity, spatial distortion, and non-uniformity of intensity response, are the primary considerations. It is better to account for the distortions within scientific analysis software, but often it is more practical to correct the distortions to produce ‘idealised’ data. Calibration methods and software have been developed for single crystal diffraction experiments, using both approaches. For powder diffraction experiments the additional task of converting a two-dimensional image to a one-dimensional spectrum is used to allow Rietveld analysis. This task may be combined with distortion correction to produce intensity information and error estimates. High-pressure experiments can introduce additional complications and place new demands on software. Flexibility is needed to be able to integrate different angular regions se...
4,426 citations
TL;DR: Dioptas is a Python-based program for on-the-fly data processing and exploration of two-dimensional X-ray diffraction area detector data, specifically designed for the large amount of data collected at XRD beamlines at synchrotrons.
Abstract: The amount of data collected during synchrotron X-ray diffraction (XRD) experiments is constantly increasing. Most of the time, the data are collected with image detectors, which necessitates the use of image reduction/integration routines to extract structural information from measured XRD patterns. This step turns out to be a bottleneck in the data processing procedure due to a lack of suitable software packages. In particular, fast-running synchrotron experiments require online data reduction and analysis in real time so that experimental parameters can be adjusted interactively. Dioptas is a Python-based program for on-the-fly data processing and exploration of two-dimensional X-ray diffraction area detector data, specifically designed for the large amount of data collected at XRD beamlines at synchrotrons. Its fast data reduction algorithm and graphical data exploration capabilities make it ideal for online data processing during XRD experiments and batch post-processing of large numbers of images.
1,163 citations
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TL;DR: In this article, the ground-state physical properties of corundum (α-Al2O3) with some emphasis on its behavior under high pressure were reviewed, and the effects of temperature and stress on the R-line luminescence of ruby were surveyed.
Abstract: The ruby luminescence method is widely used for pressure measurement in the diamond anvil cell and other optically transparent pressure cells. With this application in mind, we briefly review the ground-state physical properties of corundum (α-Al2O3) with some emphasis on its behavior under high pressure, survey the effects of temperature and stress on the R-line luminescence of ruby (Cr-doped corundum), and address the recent efforts towards an improved calibration of the R-line shift under hydrostatic pressures beyond the 50 GPa mark.
351 citations
TL;DR: In this article, the flat top laser heating (FTLH) technique was used for in-situ high pressure high temperature studies into the physical and chemical properties of materials in the diamond anvil cell (DAC) and minerals at conditions relevant to the Earth's deep interior.
Abstract: Laser heating plays an essential role for in-situ high pressure high temperature studies into the physical and chemical properties of materials in the diamond anvil cell (DAC) and minerals at conditions relevant to the Earth's deep interior. High temperature experiments in the multi-Mbar (over 100 GPa) pressure range require the use of very small samples and consequently the utmost stability and controllability of the laser heating is crucial. To accomplish this, we have modified the laser heating system at GSECARS employing newly developed beam shaping optics combined with two diode-pumped, single mode fiber lasers. Varying the settings of the laser heating system, we were able to shape the beam to almost any desired intensity profile and size on the surface of the sample in the DAC, including tight focus, flat top, trident and doughnut types. The advantages and excellent performance of the flat top laser heating (FTLH) technique were demonstrated in melting experiments on germanium in the DAC at pressur...
284 citations
TL;DR: In this article, a diamond anvil cell is described, where the force on the piston is generated by pressurized helium, which pushes an annular membrane and allows fine control and adjustment of the force applied to the anvils, spatial stability of the sample under varying pressure, axial thrust and large optical aperture on both sides of the cell.
Abstract: A new design for a diamond anvil cell is described. Its main originality is that the force on the piston is generated by pressurized helium, which pushes an annular membrane. It specially permits fine control and adjustment of the force Applied to the anvils, spatial stability of the sample under varying pressure, axial thrust and large optical aperture on both sides of the cell. Selected applications are presented.
276 citations