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Radiation sources have been applied in more diverse fields than those people know generally.
For example, the sterilization of medical devices or the manufacture of heat-resisting coating materials for electric wires and bottles by inducing cross-linking reactions in high molecular compounds like polyethylene are executed by irradiation.
Furthermore, the sources are indispensable for the quality control such as the thickness measurement of steel plates or papers, the investigation of cracks and damage, or faulty part welded.
They are also applied in various fields including the cancer therapy, environmental measurement; etc. Hence, what is most important now is that the sources are stably supplied for avoiding troubles in the application fields.
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