Patent ID: 8569703

Claim:
A system for detection of doses of ionizing radiation, said system comprising: (a) a matrix comprising photoluminescent semiconductor nanocrystals; (b) an illumination interface for exposing said matrix to non-ionizing radiation; (c) a response characterization interface for measuring photoluminescence, scatter, or optical density of said matrix and identifying changes in said photoluminescence, scatter, or optical density caused by exposure to ionizing radiation; and (d) a readout interface to quantify said changes in said photoluminescence, scatter, or optical density as a dose of radiation, wherein said changes in said photoluminescence, scatter, or optical density are selected from the group consisting of an increase or decrease in photoluminescence, scatter, or optical density, respectively, of any feature of a respective photoluminescence, scatter, or optical density spectrum and a frequency shift of any spectral feature of a respective photoluminescence, scatter or optical density spectrum.