Abstract
The VKα X-rays induced by the electron capture decay of51Cr-labeled compounds and the fluorescent X-rays of the vanadium compounds have been measured with a Bragg spectrometer. The evident chemical shifts of the Kα1 and Kα2 lines were observed for the oxidation state both by electron capture and photoionization. The differences of the Kα peak energy (Kα1 and Kα2 peaks) with the modes of the excitation were also obtained. The Kα peaks of51Cr shift to lower energy by ca. 0.5 eV than those of vanadium at the same oxidation state. This is because the probability of the electron shake up (and shake off) during the electron capture decay is extremely small, as compared to photoionization.
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Tamaki, Y. Energy shift of vanadium Kα X-rays accompanying EC decay in51Cr-labeled compounds. Journal of Radioanalytical and Nuclear Chemistry, Articles 196, 161–164 (1995). https://doi.org/10.1007/BF02036300
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DOI: https://doi.org/10.1007/BF02036300