CHEMICAL DECONTAMINATION USING IF_7 GAS

摘要

The uranium enrichment facilities, located at Ningyo-toge in Japan, are contaminated by uranium fluorides. There is the risk of exposing the HF gas when the equipments will be dismantled. Therefore, we performed the systematic chemical decontamination by using IF7 gas. This paper reports the actual results of the decontamination by using IF7 gas. The result shows that the decontamination factor is approximately 100. In addition, we performed the simulation of the reactions with IF7 gas and uranium fluorides.