A Sealed, Uhv Compatible, Soft X-Ray Detector Utilizing Gas Electron Multipliers
Nuclear Science Symposium Conference Record（2009）
摘要
An advanced soft X-ray detector has been designed and fabricated for use in synchrotron experiments that utilize Xray absorption spectroscopy in the study a wide range of materials properties. Fluorescence X-rays, in particular C-K at 277eV, are converted in a low pressure gas medium, and charge multiplication occurs in two gas electron multipliers, fabricated in-house from glass reinforced laminate, to enable single photon counting. The detector satisfies a number of demanding characteristics often required in synchrotron environments, such as UHV compatibility, compactness, long-term stability, and energy resolving capability.
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关键词
x-ray fluorescence analysis,xanes,electron multiplier detectors,ionisation chambers,nexafs,x-ray absorption spectroscopy,fluorescence x-rays,gas electron multipliers,near-edge extended x-ray absorption fine structure,photon counting,soft x-ray detector,synchrotron environments,synchrotron experiments,x ray absorption spectroscopy,gas electron multiplier,nist,titanium,particle acceleration,fluorescence,satisfiability,photonics,detectors,carbon,anodes,low pressure,material properties
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