A low cost, rapid, flexible radiation detector uses inorganic metal halide precursors and dyes that respond to self-quenching hybrid scintillation. Remote, high-contrast, laser sensing can be used to determine when exposure of the detector to radiation occurs (even temporally).

A low cost, rapid, flexible radiation detector uses inorganic metal halide precursors and dyes that respond to self-quenching hybrid scintillation. Remote, high-contrast, laser sensing can be used to determine when exposure of the detector to radiation occurs (even temporally).

In the technical field of power generation, a method and system for directly and rapidly detecting .sup.14C of carbon dioxide, which can quickly complete a .sup.14C activity measurement of carbon dioxide, while further improving uniformity and accuracy for directly and rapidly detecting .sup.14C of carbon dioxide. The method includes: pressurizing and liquefying gaseous carbon dioxide to obtain liquid carbon dioxide; mixing the liquid carbon dioxide with a cosolvent and a scintillator in a pressure vessel to obtain a mixed solution; and placing the pressure vessel in a liquid scintillation counter for carrying out radiocarbon activity detection.