【摘要】 在１９ＭｅＶ／ｕ４０Ａｒ＋２０９Ｂｉ反应中，云母片固体径迹探测器记录了几例连续两次衰变径迹．分析表明，这些事件两次衰变的时间间隔约为１０－１３Ｓ．根据位垒穿透的ＷＫＢ理论，这样的裂变是可能的．更多还原

【Abstract】 The tracks of a few successive decay events in the reaction of 19MeV/u 40Ar+209Bi are observed in muscovite sheets as solid track detectors. It is deduced that the time interval between two successive decays of these events is about 10-13s. From calculation based on the WKB approximation for barrier penetration it is believed that such successive fission is possible.更多还原