mixed irradiation study multiple ion irradiation study multiple ion mixed irradiation study https://orcid.org/0000-0001-9227-0670 http://orcid.org/0000-0002-5111-7263 A multiple ion irradiation study typically involves exposing a sample or system to a combination of different types of charged particle radiation. Exposure might be simultaneous or sequential and from anthropogenic or natural sources of radiation. The goal is to understand how the different types of radiation interact with each other and their combined effects on the material or biological system under investigation.