Abstract
Muonium atoms produced in water react with thioacetamide (CH3CSNH2) to form a sulphur-centred (thiyl) free radical whose level-crossing-resonance from the CH3-protons has been detected and analysed. Its amplitude increases with concentration below ∼10−2 M but decreases at higher concentrations with a concommitant increase in linewidth. This is interpreted as indicating overlap with paramagnetic species from the muon track. It starts when the track is a few nanoseconds old.
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Barnabas, M.V., Venkateswaran, K. & Walker, D.C. Relaxation of thiyl radicals as a measure of the probable timescale over which the missing fraction of muonium in water is lost. Hyperfine Interact 65, 953–958 (1991). https://doi.org/10.1007/BF02397748
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DOI: https://doi.org/10.1007/BF02397748