Abstract
In polar solvents (water, methanol and DMSO), HgCl 2 inhibits positronium formation by quasi-free electron scavenging. In methanol, this inhibition possibly leads to fast detachment of Cl - followed by positron capture to form a bound-state, [Cl -e +]. In the other solvents, the positron appears to react with the newly formed radical anion, HgCl - 2, before Cl - detachment can occur. The sequence of electron scavenging by HgCl 2 followed by positron capture by the newly formed anion is confirmed by examining the effect of adding competing electron scavengers to the solutions.
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Schedule a callMore From: International Journal of Radiation Applications & Instrumentation. Part C, Radiation Physics & Chemistry
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