radiation sensitisation

synonym: radiosensitisation
https://doi.org/10.1351/goldbook.14073
Chemical change or physical process occurring in one entity (e.g., biological molecules, cells, and living organisms) as a result of initial absorption of high-energy radiation by the medium in the presence of another entity called the radiation sensitiser.
Note: High-energy radiation is absorbed usually nonspecifically in the medium (e.g., solvent) and all chemical reactions arise from the products of this primary energy absorption.
Source:
PAC, 2011, 83, 931. (Glossary of terms used in photocatalysis and radiation catalysis (IUPAC Recommendations 2011)) on page 982 [Terms] [Paper]