Low X-ray energy fluorescence Gas Electron Multiplier (GEM) for XAS studies
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. ISSN 0018-9499Full text not available from this repository.
Official URL: http://dx.doi.org/10.1109/TNS.2007.908699
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|
|Subjects:||T Technology > TK Electrical engineering. Electronics Nuclear engineering
Q Science > QC Physics
|Journal or Publication Title:||IEEE TRANSACTIONS ON NUCLEAR SCIENCE|
|Publisher:||IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC|
|Official Date:||December 2007|
|Number:||6 Part 2|
|Number of Pages:||5|
|Page Range:||pp. 2637-2641|
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