Study on the strip away layer and cleaning technology based on double layered principle

This paper is mainly about the radioactive measurement and pollution treated on the radioactive waste field. By using grid of disk source measurement analysis, then, to strip away layer and cleaning technology were carried out on radioactive waste field. Firstly, the function of Φ (ℎ) between the detection efficiency and attenuation thickness was fixed by ²⁴¹Am disk source layered experiment, which was validated the correct of the calculation model; Secondly, the peak count rate was obtained at different thickness of source and different attenuation thickness, according to the activity concentration given by the classification standard of radioactive a waste solid. Finally, the best thickness of the strip away layer was implemented based on the count rate. The workload and the produce of waste were strictly reduced by this elaborate task, meanwhile, the radioactive waste was cleaned completeness once, insured the progress of the engineering. (authors)