先进燃料聚变反应性增强的新机制  

New mechanism of reactivity enhancement for advanced fuel fusion

作　　者：陈志[1] 邓柏权[1] 冯开明[1] 

机构地区：[1]核工业西南物理研究院,成都610041

出　　处：《物理学报》2006年第4期1724-1730,共7页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:10275017)资助的课题.

摘　　要：采用电子回旋波加热D-3He先进燃料聚变等离子体,使它处在高的电子温度下,一些新的物理过程(如聚变产物之间核-核弹性散射、核力与库仑相干散射及核反应的传播)变得相对重要,而高能聚变产物离子与电子的库仑相互作用相对变弱.部分本底燃料离子被高能的聚变反应产物核击出而提升到分布函数尾部成为“超热”燃料离子,从而可能提高D-3He聚变的反应性.还计算了这些机制的能量传递.If electron cyclotron wave is adopted for heating of D-3 He advanced fuel fusion plasma, it makes the latter operate at elevated electron temperature. Under these circumstances, some new physical processes, such as nuclear-nuclear elastic scattering, nuclear plus Coulomb interference scattering, secondary reaction propagation between the fusion products and bulk Maxwellian ions, become relatively more pronounced. However the Coulomb-interactions between fusion produced energetic ions and electrons turn to be weakening, a fraction of bulk Maxwellian fuel ions will be shifted to super-hot tail ions in their distribution functions, hence D-3He fusion reactivity may be enhanced. The energy transfer of these new mechanisms is highlighted in this paper.

关 键 词：核-核弹性散射 核-库仑相干散射 D-^3He聚变 聚变反应性增强 

分 类 号：O571.44[理学—粒子物理与原子核物理]