裂变产额在核工程中(如核测试、核查、WQ储存维护等方面)有着重要的应用,是确定核燃料成分和核装置当量的重要基础数据。240Pu作为核燃料的组成部分,其意义也越来越受到重视,但目前其产额数据非常缺乏,因而迫切需要对其开展研究。除了核工程的需求,目前的裂变理论及模型研究大多数限于中子诱发裂变,对自发裂变目前还没有成熟的理论及计算方法,本工作对 The fission yield has important applications in nuclear engineering (such as nuclear testing, verification, WQ storage and maintenance) and is an important basic data for determining the nuclear fuel composition and nuclear device equivalent. The significance of 240Pu as an integral part of nuclear fuel is getting more and more attention. However, due to the current lack of production data, 240Pu urgently needs to be studied. In addition to the needs of nuclear engineering, most of the current researches on fission theory and model are limited to neutron-induced fission. There are currently no mature theories and calculation methods for spontaneous fission.