Results 221 to 230 of about 187,880 (262)
HERMES: a soft X-ray beamline dedicated to X-ray microscopy
Journal of Synchrotron Radiation, 2015 The HERMES beamline (High Efficiency and Resolution beamline dedicated to X-ray Microscopy and Electron Spectroscopy), built at Synchrotron SOLEIL (Saint-Auban, France), is dedicated to soft X-ray microscopy. The beamline combines two complementary microscopy methods: XPEEM (X-ray Photo Emitted Electron Microscopy) and STXM (Scanning Transmission X-ray
Sufal Swaraj +2 more
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Science, 2017
Consecutive attosecond pulses reveal the dynamics of excitons ensuing from core-electron excitation in silica.
A. Moulet +5 more
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Consecutive attosecond pulses reveal the dynamics of excitons ensuing from core-electron excitation in silica.
A. Moulet +5 more
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X-Ray Spectrometry, 2009
Abstract In this work we report on the characterization of pulsed soft x‐rays emitted from laser‐produced plasma. The plasma was generated by a pulsed KrF excimer laser focused on pure Si, Cu and Ta targets by 40, 80 and 120 mJ laser energies.
SICILIANO, MARIA VITTORIA +3 more
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Abstract In this work we report on the characterization of pulsed soft x‐rays emitted from laser‐produced plasma. The plasma was generated by a pulsed KrF excimer laser focused on pure Si, Cu and Ta targets by 40, 80 and 120 mJ laser energies.
SICILIANO, MARIA VITTORIA +3 more
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Soft X-ray interferometry and holography
AIP Conference Proceedings, 1986Developments in the fundamental optics for soft X-ray interferometry and holography are reviewed. To improve the quality of interference fringes it is essential to develop the soft X-ray sources, optical components and recording films. In this study soft X-ray radiation emitted from the undulator arranged in the 2.5 GeV Photon Factory ring was used, as
Seishi Kikuta, Sadao Aoki
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Review of Scientific Instruments, 1974
A novel collimator is described which makes use of eight identical plates having holes located randomly. A holder aligns the plates so that on-axis x rays pass through the same hole in each successive plate. Off-axis x rays are attenuated by a factor of T8(=2×10−4), where T is the transmission of a single plate.
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A novel collimator is described which makes use of eight identical plates having holes located randomly. A holder aligns the plates so that on-axis x rays pass through the same hole in each successive plate. Off-axis x rays are attenuated by a factor of T8(=2×10−4), where T is the transmission of a single plate.
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A Soft X-Ray Experimental Facility
Advances in X-ray Analysis, 1984AbstractA high vacuum soft x-ray source has been coupled to a large volume experimental chamber to provide a versatile facility for x-ray investigations in the energy range of 0.1 to 10 kev. The source chamber presently contains a modified Herike tube, but can employ any of a variety of source designs.
John V. Gilfrich +4 more
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Soft X-ray photoabsorption of the NO dimer
Molecular Physics, 1995X-ray absorption spectra are reported for the first time for the (NO)(2) dimer at both the nitrogen and oxygen K edges, the data being obtained from (NO)(2) multilayers formed on Ag{111}. The spectra display distinctive features which suggest an electronic structure for excited states of this species.
Jigato, M P +6 more
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Soft X-ray microscopy at the NSLS
Proceedings IEEE International Symposium on Biomedical Imaging, 2003Scanning Transmission X-ray Microscopes are used to image 0.1-10 micron thick specimens at 20-50 nm resolution using zone plate focusing. Many of the applications of these instruments make use of the elemental and chemical sensitivity of XANES spectroscopy combined with microscopy.
Tobias Beetz +8 more
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Demonstration of a Soft X-Ray Amplifier
Physical Review Letters, 1985We report observations of amplified spontaneous emission at soft x-ray wavelengths. An optical laser ionized thin foils of selenium to produce a population inversion of the $2{p}^{5}3p$ and $2{p}^{5}3s$ levels of the neonlike ion. Using three time-resolved, spectroscopic measurements we demonstrated gain-length products up to 6.5 and gain coefficients ...
, Matthews +18 more
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Physical Review, 1919
Method.---Soft X-rays were produced by the impact of electrons from a hot-lime cathode against a platinum anode. Potentials of 20 to 1,000 volts were used to give the electrons the desired velocity of impact. The properties of the rays were studied by observing the velocity and number of electrons produced on a brass plate by a narrow beam of soft X ...
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Method.---Soft X-rays were produced by the impact of electrons from a hot-lime cathode against a platinum anode. Potentials of 20 to 1,000 volts were used to give the electrons the desired velocity of impact. The properties of the rays were studied by observing the velocity and number of electrons produced on a brass plate by a narrow beam of soft X ...
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