Results 11 to 20 of about 601,668 (305)

X-ray absorption spectroscopy [PDF]

Photosynthesis Research, 2009
This review gives a brief description of the theory and application of X-ray absorption spectroscopy, both X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS), especially, pertaining to photosynthesis. The advantages and limitations of the methods are discussed.
Yano, Junko, Yachandra, Vittal K.
openaire   +4 more sources

Modern x-ray spectral methods in the study of the electronic structure of actinide compounds: Uranium oxide UO2 as an example [PDF]

Nuclear Technology and Radiation Protection, 2004
Fine X-ray photo electron spectral (XPS) structure of uranium dioxide UO2 in the binding energy (BE) range 0-~č40 eV was associated mostly with the electrons of the outer (OVMO) (0-15 eV BE) and inner (IVMO) (15-40 eV BE) valence molecular orbitals ...
Teterin Yury A., Teterin Anton Yu.
doaj   +1 more source

InGaAs x-ray photodiode for spectroscopy

Materials Research Express, 2020
A prototype In _0.53 Ga _0.47 As p ^+ -i-n ^+ x-ray photodiode, fabricated from material grown by metalorganic vapour phase epitaxy, was investigated as a novel detector of x-rays.
M D C Whitaker, G Lioliou, A B Krysa, A M Barnett   +3 more
doaj   +1 more source

X-ray absorption spectroscopy and X-ray diffraction data for molybdenum minerals and compounds

Data in Brief, 2022
We report Mo K- and LIII-edge X-ray absorption spectroscopy (XAS) and X-ray diffraction (XRD) data collected for 15 molybdenum minerals and compounds sourced from museum collections, mineral dealers, and chemical suppliers. The samples were finely ground
Valerie A. Schoepfer, Matthew B.J. Lindsay   +1 more
doaj   +1 more source

Microcalorimeters for X-Ray Spectroscopy

International Astronomical Union Colloquium, 1988
The merits of microcalorimetry below 1°K for high resolution spectroscopy has become widely recognized on theoretical grounds. By combining the high efficiency, broadband spectral sensitivity of traditional photoelectric detectors with the high resolution capabilities characteristic of dispersive spectrometers, the microcalorimeter could potentially ...
Silver, E., Hailey, C., Labov, S., Madden, N., Landis, D., Goulding, F., Chanan, B., Rutledge, J., Bernstein, G., Richards, P., Kahn, S., Becker, R.   +11 more
openaire   +2 more sources

Development of an experimental apparatus to observe ultrafast phenomena by tender X-ray absorption spectroscopy at PAL-XFEL

Journal of Synchrotron Radiation, 2022
Understanding the ultrafast dynamics of molecules is of fundamental importance. Time-resolved X-ray absorption spectroscopy (TR-XAS) is a powerful spectroscopic technique for unveiling the time-dependent structural and electronic information of molecules
Yujin Kim, Daewoong Nam, Rory Ma, Sangsoo Kim, Myung-jin Kim, Jinhong Kim, Intae Eom, Jae Hyuk Lee, Tae Kyu Kim   +8 more
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A von Hámos spectrometer for diamond anvil cell experiments at the High Energy Density Instrument of the European X-ray Free-Electron Laser

Journal of Synchrotron Radiation, 2023
A von Hámos spectrometer has been implemented in the vacuum interaction chamber 1 of the High Energy Density instrument at the European X-ray Free-Electron Laser facility.
Johannes M. Kaa, Zuzana Konôpková, Thomas R. Preston, Valerio Cerantola, Christoph J. Sahle, Mirko Förster, Christian Albers, Lélia Libon, Robin Sakrowski, Lennart Wollenweber, Khachiwan Buakor, Anand Dwivedi, Mikhail Mishchenko, Motoaki Nakatsutsumi, Christian Plückthun, Jan-Patrick Schwinkendorf, Georg Spiekermann, Nicola Thiering, Sylvain Petitgirard, Metin Tolan, Max Wilke, Ulf Zastrau, Karen Appel, Christian Sternemann   +23 more
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X-RAY ASTRONOMICAL SPECTROSCOPY [PDF]

Exploring the Universe, 1980
The current status of the X-ray spectroscopy of celestial X-ray sources, ranging from nearby stars to distant quasars, is reviewed. Particular emphasis is placed on the role of such spectroscopy as a useful and unique tool in the elucidation of the physical parameters of the sources.
openaire   +1 more source

Three-dimensional electronic spectroscopy of excitons in asymmetric double quantum wells

New Journal of Physics, 2013
We utilize a three-dimensional (3D) visible spectroscopy to reveal and explore coherent coupling between excitons localized to GaAs quantum wells separated by barriers 4 and 6 nm wide. The coupled excitons were energetically separated by 43 meV, close to
C R Hall, J O Tollerud, H M Quiney, J A Davis   +3 more
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Resonant X-ray emission spectroscopy using self-seeded hard X-ray pulses at PAL-XFEL

Journal of Synchrotron Radiation, 2023
Self-seeded hard X-ray pulses at PAL-XFEL were used to commission a resonant X-ray emission spectroscopy experiment with a von Hamos spectrometer. The self-seeded beam, generated through forward Bragg diffraction of the [202] peak in a 100 µm-thick ...
Tae-Kyu Choi, Jaeku Park, Gyujin Kim, Hoyoung Jang, Sang-Youn Park, Jang Hyeob Sohn, Byoung Ick Cho, Hyunjung Kim, Kyung Sook Kim, Inhyuk Nam, Sae Hwan Chun   +10 more
doaj   +1 more source