| 摘要 |
PROBLEM TO BE SOLVED: To provide a decontamination method for a plant using a radioactive material capable of carrying out decontamination work and measurement for radioactive intensity of a radioactive material concurrently, superior in working efficiency, and high in reliability. SOLUTION: This decontamination method for the plant contaminated with the radioactive material consists of (a) a process for conveyance-blasting dry ice particles by pressurized air to separate a surface in a portion contaminated with the radioactive material, (b) a process for sucking the mixed air mixed with a separated material and the dry ice particles to collect and recover dust, (c) a process for regulating a process time in the process (a) while measuring the intensity of radioactivity of the radioactive material in a dust collection- recovery filter, on the surface of the potion contaminated with the radioactive material. |
