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Is thermoluminescence dating

Target lesions were According to final outcome data provided by Provectus, a Complete Response (CR: complete disappearance of the tumor) of PV-10 injected lesions was achieved in 26 percent of subjects, Partial Response (PR: at least a 30 percent reduction in tumor volume) was seen in 25 percent of subjects, and Stable Disease (SD: less than 20 percent increase in tumor volume) was seen in 18 percent of subjects.

In some materials, these states are trapped, or arrested, for extended periods of time by localized defects, or imperfections, in the lattice interrupting the normal intermolecular or inter-atomic interactions in the crystal lattice.

lattice vibrations, to rapidly decay into lower-energy states, causing the emission of photons in the process.

The amount of luminescence is proportional to the original dose of radiation received.

The intensity of the emission can be correlated to the length of time that a given substance was exposed to radiation; the longer the time allowed for the radiation to build up an inventory of trapped electrons, the greater the energy released.

Because of this feature, thermoluminescence has been exploited as a means of dating various minerals and archaeological artifacts.

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