순수한 우라늄 금속은 칩이나 분말로 존재할 경우 반응면적이 넓어 자연 발화할 정 도의 산화력을 지니며 산화열이 높기 때문에 운반 및 처리시 화재의 위험성이 있다. 따라서 이들을 장기보관하거나 영구처분시 안정한 형태의 전환이 우선되어야 한다. 외 국의 경우 감손우라늄 폐기물을 자연에서 가장 안전한 상태인 산화우라늄의 형태로 산화 처리 후 영구처분하고 있으며, 이를 위하여 우라늄 칩의 산화거동에 관한 연구가 수행 되었다. 우라늄 칩을 안전하게 보관하려면 불활성 분위기를 형성해 주든가 또는 우라늄 칩의 표면에 부동태층을 형성시켜야 한다. 또는 우라늄 칩을 광유속에 넣어 공 기나 물이 우라늄 칩에 접촉되지 않는 방법으로 보관하는 것이 바람직하다.

Safety in the nuclear facility has been a growing interest due to recent recurrences of the fatal accidents such as Fukushima accident and Chernobyl accident. It is not easy to determine the extent to what technical requirements of nuclear facility such as nuclear power plant are be likely applicable to the laboratory for use of nuclear material. All of workers in nuclear shall be recognized for the generic features of safety according to the related laws. This study surveys a status of safety control laws to enhance safety in laboratory for use of nuclear material.

A life cycle assessment(LCA) is increasing its applicability as a powerful tool for an environmental burdens analysis. In this study, some cases are compared in terms of analysis procedures and results obtained with LCAs for evaluating power generation technologies in Korea. For the comparison, 3 power generation technologies are selected because they produces almost 90% of 2003 total electricity generation in Korea. It is shown that the range of evaluation values amounts to maximally the order of about 105, which is rather large discrepancy than the level of 101 in comparison with foreign studies. The difference seems to be due to the simplicity of modeling used in each case study. It is proposed that this large discrepancy should be obviously clarified to improve their reliability in that electricity is a essentialness for all industries and the capacity of LCA of national-level electricity affects the results of LCA for the other sectors.

Safety in the laboratory has been a growing interest due to recent recurrences of the fatal accidents such as physical or chemical explosions. It is not easy to determine the extent to what the industrial safety and health law should be applicable to the laboratory. Most laboratory workers are not sufficiently trained and recognized for the generic features of safety and health. The actual conditions of safety and health in the laboratory are not familar with laboratory workers. Safety and health in the laboratory is unfortunately in the dead ground. Therefore, it is most imperative to secure safety in the laboratory. This study proposes a method to improve safety in the laboratory.

Safety in the laboratory has been a growing interest due to recent recurrences of the fatal accidents such as physical or chemical explosions. It is not easy to determine, to what extents the industrial safety and health law should apply the laboratory. Most laboratory workers are not sufficiently trained and recognized for the generic features of safety and health. The actual conditions of safety and health in the laboratory are not appropriate for laboratory workers. Safety and health in the laboratory is unfortunately in the dead ground. Therefore, it is most imperative to secure safety in the laboratory. This study proposes a method to improve safety in the laboratory.

This study presents a method of quality category classification by safety, maturity, complexity, and what types and extent of controls and verifications are applied to specific products and services during the various stages of a nuclear facility life cycle. All products, services and processes have various controls and verifications built in to ensure they perform their functions satisfactorily. The highest grade should require the most stringent application of the quality assurance requirements ; while, the lowest grade should require the least stringent. When products or services are modified, the assigned grade of quality assurance requirements could become more stringent or less stringent depending on the significance in nuclear safety. Applying QA program always costs money, and they should be applied and focused to the extent where necessary and not applied or applied to a lesser degree for less important activities. An efficient QA program should be developed to satisfy the necessary requirements and to ensure the required confidence in quality, but without unnecessary stipulations. Not all the requirements of QA standard must be applied identically to all products and services which are to be provided.