Topic
Synchrotron radiation
About: Synchrotron radiation is a research topic. Over the lifetime, 14639 publications have been published within this topic receiving 244775 citations. The topic is also known as: magnetobremsstrahlung radiation & Synchrotron Radiation.
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TL;DR: In this paper, the authors performed an in situ X-ray diffraction study on a Li 1−xCoO2 cathode in a Li|Li1−xCOO2 cell, which was charged at a C/10 rate from 3.5 to 5.2 V.
74 citations
TL;DR: In this paper, the authors describe a modular computer system which can be used to control the operation of and collect and process spectral data from this spectrometer system, which is suitable for use to wavelengths less than 130 nm.
74 citations
21 Jul 2005-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: In this article, the authors realized hard X-ray (HX) photoelectron spectroscopy (PES) with highthroughput and high-energy resolution for core level and valence band studies using high energy and highbrilliance synchrotron radiation at BL29XU in SPring-8.
Abstract: We have realized hard X-ray (HX) photoelectron spectroscopy (PES) with high-throughput and high-energy-resolution for core level and valence band studies using high-energy and high-brilliance synchrotron radiation at BL29XU in SPring-8. Large escape depth of high-energy photoelectrons enables us to probe intrinsic bulk states almost free from surface condition. By use of a newly developed electron energy analyzer and well-focused X-rays, high-energy resolution of 75 meV ( E / Δ E = 79 , 000 ) was realized for 5.95 keV photoelectrons.
74 citations
TL;DR: In this article, a discussion is given of principles and applications of surface extended X-ray absorption fine structure (SEXAFS) measurements of chemisorbed atoms on surfaces.
74 citations
TL;DR: In this paper, the authors used high-resolution simulations of a sample of galaxy clusters spanning a mass range of almost two orders of magnitudes, and followed self-consistent cosmic ray physics on top of the radiative hydrodynamics.
Abstract: Complementary views of galaxy clusters in the radio synchrotron, hard X-ray inverse Compton and high-energy γ-ray regimes are critical in calibrating them as high-precision cosmological probes. We present predictions for scaling relations between cluster mass and these non-thermal observables. To this end, we use high-resolution simulations of a sample of galaxy clusters spanning a mass range of almost two orders of magnitudes, and follow self-consistent cosmic ray physics on top of the radiative hydrodynamics. We model relativistic electrons that are accelerated at cosmological structure formation shocks and those that are produced in hadronic interactions of cosmic rays with ambient gas protons. Calibrating the magnetic fields of our model with Faraday rotation measurements, the synchrotron emission of our relativistic electron populations matches the radio synchrotron luminosities and morphologies of observed giant radio haloes and minihaloes surprisingly well. Using the complete sample of the brightest X-ray clusters observed by ROSAT in combination with our γ-ray scaling relation, we predict GLAST to detect about ten clusters allowing for Eddington bias due to the scatter in the scaling relation. The expected brightest γ-ray clusters are Ophiuchus, Fornax, Coma, A3627, Perseus and Centaurus. The high-energy γ-ray emission above 100 MeV is dominated by pion decays resulting from hadronic cosmic ray interactions. We provide an absolute lower flux limit for the γ-ray emission of Coma in the hadronic model which can be made tighter for magnetic field values derived from rotation measurements to match the GLAST sensitivity, providing thus a unique test for the possible hadronic origin of radio haloes. Our predicted hard X-ray emission, due to inverse Compton emission of shock accelerated and hadronically produced relativistic electrons, falls short of the detections in Coma and Perseus by a factor of 50. This casts doubts on inverse Compton interpretation and reinforces the known discrepancy of magnetic field estimates from Faraday rotation measurements and those obtained by combining synchrotron and inverse Compton emission.
74 citations