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Low X-ray energy fluorescence Gas Electron Multiplier (GEM) for XAS studies
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Mir, J. A., Sole, D., Lipp, J. D., Stephenson, R., Purton, J. A., Savin, S. L. P., Chadwick, A. V. and O'Dell, L. (2007) Low X-ray energy fluorescence Gas Electron Multiplier (GEM) for XAS studies. IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 54 (6 Part 2). pp. 2637-2641. doi:10.1109/TNS.2007.908699 ISSN 0018-9499.
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Official URL: http://dx.doi.org/10.1109/TNS.2007.908699
Abstract
X-ray absorption spectroscopy at sub-keV energies dictates the use of detectors that can attain a good signal-to-noise ratio. We report a recent study undertaken at Science and Technology Facilities Council, Daresbury Laboratory to evaluate the performance of a Gas Electron Multiplier (GEM) for this purpose. The main impetus of this study was to investigate the relevant parameters such as the effective gain and energy resolution in the X-ray energy range of 270-930 eV. This study demonstrated that a single stage GEM can sustain effective gains up to 60 000 in a helium-isobutane counter gas mixture at atmospheric pressure. Consequently, high signal-to-noise ratios were achieved (electronic noise similar to 500 electrons r.m.s) thereby permitting adequate X-ray energy resolution.
Item Type: | Journal Article | ||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering Q Science > QC Physics |
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Journal or Publication Title: | IEEE TRANSACTIONS ON NUCLEAR SCIENCE | ||||
Publisher: | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | ||||
ISSN: | 0018-9499 | ||||
Official Date: | December 2007 | ||||
Dates: |
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Volume: | 54 | ||||
Number: | 6 Part 2 | ||||
Number of Pages: | 5 | ||||
Page Range: | pp. 2637-2641 | ||||
DOI: | 10.1109/TNS.2007.908699 | ||||
Publication Status: | Published |
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