Study on beta-decay control by weak interaction

这项工作中的实验研究最初计划使用日本原子能机构的研究反应堆JRR-3进行。由于东日本地震灾害，反应堆停止运行。起初，该项目宣布将于2012年2月重启。然而，由于意外情况，重启被推迟。最后，反应堆一直停到现在。这些情况迫使我们开展了以下研究：(1)利用密封放射性同位素建立精确的β衰变速率；(2)通过自然中微子弱相互作用的反应机理的公式

The experimental study in this work was initially planed to be carried out by the use of the research reactor JRR-3 at Japan Atomic Energy Agency. The reactor stopped due to the East Japan Earth-quack Disaster. At first, it was announced that the operation would be restarted in February 2012. However, because of unexpected situations, the restart was postponed. Finally, the reactor was continuously being stopped up to now. These circumstances forced us to carry out the researcheson (1) the establishment of precise beta-decay rate by the use of sealed radioisotopes,and (2) the formulation of reaction mechanism in weak interactions through natural neutrinos