A radiation dosage indicator with a colored laminate layer

Abstract

This present disclosure provides a radiation dosage indicator comprising: a first ply comprising at least one radiochromic film having a substrate covering with an active layer; optionally, a second ply having at least one visible indicium is configured to underlay the first ply; optionally, a third ply overlying the first ply comprising at least a one viewing zone and the visible indicium; and a fourth ply having a colored lamination layer overlying the active layer of the radiochromic film, optionally a fifth ply having a complementary colored lamination layer overlying the forth colored ply, wherein the active layer is configured to change opacity in response to exposure to a certain radiation dosage exceeding an independently predetermined threshold of each radiochromic film; and wherein the visible indicium of the second ply is configured to be exposed to view through the viewing zone and providing a visual indication as to whether the indicator has been exposed to a radiation dosage exceeding the predetermined threshold. The present disclosure also provides a semi quantitative radiation dosage indicator. The present disclosure also provides a radiation dosage indicator used in the field of insect sterilization, phytosanitary, food sterilization, medical device sterilization, and cannabis irradiation.