Development of dismantling in nuclear reactor with chemical oxygen iodine laser

The dismantling work of nuclear facilities for decommissioning requires the safe operation at the narrow space under highly radioactive condition. Therefore, the dismantling system is required to reduce the size of cutting devices and control remotely for safe operation. A remote cutting system with laser transmitted through optical fiber is promising the dismantling of nuclear facilities. The cutting system has been developed, and experimental study has been performed. Good results were obtained in the remote cutting test. (author)