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Soft-x-ray Kossel structures from W/C multilayers under various electron ionization conditions
The intensity of the W M{alpha} line emitted by tungsten present in W/C multilayer interferential mirrors (MIM) under electron excitation is studied as a function of the detection angle of the photons. The measurements are performed for various incident-electron energies and several numbers of bilay...
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Published in: | Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2003-09, Vol.68 (3), Article 032505 |
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container_title | Physical review. A, Atomic, molecular, and optical physics |
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creator | Jonnard, P. André, J.-M. Bonnelle, C. Bridou, F. Pardo, B. |
description | The intensity of the W M{alpha} line emitted by tungsten present in W/C multilayer interferential mirrors (MIM) under electron excitation is studied as a function of the detection angle of the photons. The measurements are performed for various incident-electron energies and several numbers of bilayers constituting the MIM. A spatial modulation of the x-ray intensity is observed in a domain of detection angle around the Bragg angle of the W/C multilayer for the W M{alpha} emission. The experimental results are compared to a model based on the reciprocity theorem using nonuniform ionization distributions. We suggest that the intensity modulation is due to the interferences between the forward and backward traveling waves inside the MIM. |
doi_str_mv | 10.1103/PhysRevA.68.032505 |
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subjects | ATOMIC AND MOLECULAR PHYSICS BRAGG REFLECTION CARBON DETECTION DISTRIBUTION ELECTRONS EMISSION EMISSION SPECTRA EXCITATION INTERFERENCE IONIZATION MODULATION PHOTONS SOFT X RADIATION TRAVELLING WAVES TUNGSTEN X-RAY SPECTRA |
title | Soft-x-ray Kossel structures from W/C multilayers under various electron ionization conditions |
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