Teaching Materials for Nuclear Education using Natural Radioactivities.

通过使用伽马射线光谱学，我们迄今为止开发的教育实验已经重新评估。我们的实验中的放射性物质的数量进行了确认，并明确了池田和Ena的矿泉水是适合这些实验。我们还研究了在某些化学品和/或食品中使用钾40作为教学材料的可能性，并开发了几个可供高中生进行的简明实验。

By using gamma ray spectroscopy, the educational experiments that we have so far developed have been reevaluated. The quantity of radioactive species in our experiments was confirmed and it was made clear that mineral spring water of Ikeda and Ena were appropriate for these experiments. We have also investigated the possibility to use potasium40 in some chemicals and/or food as teaching materials and developed a couple of concise experiments that can be conducted for high school students.