Ejecta particle size measurements from the break-up of micro-jets in vacuum and helium gas using ultraviolet in-line Fraunhofer holography

An ultraviolet (UV) in-line Fraunhofer holography diagnostic has been developed for making high-resolution spatial measurements of ejecta particles traveling at many mm/μs. The diagnostic will be described and results from high-explosive shock-driven tin ejecta experiments will be presented.