Interaction of positronium with Co2+ and Cu2+ ions in aqueous solutions |
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| Authors: | B Nandi Ganguly V S Subrahmanyam P K Sarkar |
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| Institution: | (1) Saha Institute of Nuclear Physics, 1/AF Bidhannagar, 700064 Calcutta, (India);(2) Variable Energy Cyclotron Centre, 1/AF Bidhannagar, 700064 Calcutta, (India) |
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| Abstract: | Interactions of positronium in aqueous solutions of Co2+ and Cu2+ ions have been investigated at room temperature (297 K) at varying concentrations using both lifetime and Doppler broadening of annihilation radiation techniques. In the case of Co2+, the results indicate spin conversion reaction alone. However, in the case of Cu2+, oxidation is predominant with a small contribution of spin conversion reaction. The corresponding rate constants have been evaluated. |
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