Regular Article

Ion-impact-induced multifragmentation of liquid droplets^★

¹ Department of Physics, Oakland University, Rochester, MI 48309, USA
² Instituto de Física Fundamental, CSIC, Serrano 113-bis, 28006 Madrid, Spain
³ MBN Research Center, 60438 Frankfurt am Main, Germany

^a e-mail: surdutov@oakland.edu

Received: 22 February 2017
Received in final form: 24 August 2017
Published online: 14 November 2015

Abstract

An instability of a liquid droplet traversed by an energetic ion is explored theoretically. This instability is brought about by the predicted shock wave induced by the ion. An observation of multifragmentation of small droplets traversed by ions with high linear energy transfer is suggested to demonstrate the existence of shock waves. A number of effects are analysed in effort to find the conditions for such an experiment to be signifying. The presence of shock waves crucially affects the scenario of radiation damage with ions since the shock waves significantly contribute to the thermomechanical damage of biomolecules as well as the transport of reactive species. While the scenario has been upheld by analyses of biological experiments, the shock waves have not yet been observed directly, regardless of a number of ideas of experiments to detect them were exchanged at conferences.