裂变反应

碳材料反射中子的~（238）U裂变反应率测量和计算

Measurement and Calculation of ~ ( 238 ) U Fission Reaction Rates Induced by Neutrons Reflected by Carbon Material

测量结果与238U裂变反应率测量结果进行了比较。

The results was compared with the ones of 231U the fission reaction - rates .

~（12）C离子引起裂变反应的碎片角分布

Angular distributions of fission fragments in interactions of ~ ( 12 ) c ions with various targets

组合装置上~（235）U裂变反应率测量

Measurement of ~ ( 235 ) U fission reaction-rates in combined device

稍高于库仑位垒的~（238）U束引起跟随裂变反应中的壳效应

The shell effect in sequential fission induced by ~ ( 238 ) u with energy just above Coulomb barrier

用一种简单的模型对~（238）U引起的准裂变反应进行了模拟计算。

The simulation of quasi - fission reactions induced by ~ ( 238 ) U was performed by using a simple model .

对于提供核能源或中子源的核裂变反应系统，需从理论上给出它的临界安全性和中子能谱，通常通过k本征值问题的计算来实现。

The nuclear fissile reaction system , which provides nuclear energy or neutrons , theoretically demands its criticality safety and neutron energy spectrum to be predicated .

Langevin重离子熔合裂变反应动力学

Langevin Fluctuation dissipation Dynamics of Fusion and Fission Reactions Induced by Heavy Ions

25MeV/u~（40）Ar+~（209）Bi裂变反应的断点激发能和裂变时标测量

Measurement of Fission Time Scale and Excitation Energy at Scission for 25MeV / u ~ ( 40 ) Ar + ~ ( 209 ) Bi Fission Reaction

聚变中子源驱动的次临界核能系统（FDS）是根据聚变和裂变反应的各自特点，利用外源中子进入包层的次临界系统，实现增殖燃料、增益能量、产氚和嬗变核废料等功能。

The FDS ( Fusion-Driven Sub-critical System ) can realize the transmutation of HLW ( High Level Waste ), fuel production , energy breeding and tritium production by utilizing the external neutron source to make the reactor operated under the sub-critical state .

重离子裂变反应中的能级密厦参数和裂变几率

Level Density Parameter and Fission Probability Calculations in Heavy-ion-induced Fission Reactions

重离子裂变反应碎片角分布

Measurement of fission fragment angular distribution in heavy-ions induced reaction

由于少用或没用缓和剂而由快速中子引起的裂变反应。

Nuclear fissions are caused by fast neutrons because little or no moderator is used .

为了冷却核心，工程师们灌入掺了硼酸的海水，让核心及安全壳浸没在其内，以起到抑制裂变反应的作用。

Attempting to cool the cores , engineers are flooding cores and their containment vessels with seawater and boric acid , which acts to dampen fission reactions .

核反应堆的工作原理和其他的发电站很相似，不过它们并不是使用煤炭或煤气来生成热量，而是利用核裂变反应。

Nuclear reactors work in a similar way to other power plants , but instead of using coal or gas to generate heat , they use nuclear fission reactions .

在不同实验系统上，测量了铁球壳表面不同位置上中子引起的绝对裂变反应率分布。

In different experiment systems , absolute fission reaction rates , derived from reflection neutrons , at different positions of the surface of an iron spherical shell were measured .

氦-3的电能转化效率为60-70%，高于核裂变反应，而且转化过程中几乎不产生任何放射性废物。

Helium-3 has a higher efficiency of conversion to electricity than fission , at a rate of 60-70 % , and can produce energy with little to no radioactive waste .

对于包括裂变反应在内的中子输运源项反演问题，研究关于源项有效倍增因子的k-特征值问题的求解。

Considering the inversion of the source term for neutron transport in such as fission reaction , the numerical solution of the effective multiplication factor related to k-eigenvalue problem is investigated .

首先在液滴模型、壳修正模型等相关的理论模型的基础上，利用铅、铋这两个重要核材料质子裂变反应截面的实验数据得到了一系列的理论参数。

The fission cross sections in energy regions without experimental data and those of other important nuclear materials have been predicted by making use of the theoretical model such as the liquid drop model and the experimental data of proton fission reaction cross sections of Pb and Bi .

用动力学模型计算10.6MeV/u~（84）Kr（~（27）Al，准裂变）反应的裂变时间

Fission Time of the Reaction of 10.6MeV/u 84 Kr ( 27 Al , Quasi fission ) in Dynamical Model

受控核裂变链式反应

Controlled nuclear fission chain reaction

高浓铀快堆裂变产物的反应性效应及假想裂变产物的等效方法

The Reactivity Effect of Fission Products and Equivalent Methods of Imaginary Fission Products in a Highly Enriched Uranium FTR

在快中子反应堆模型上，用MC方法模拟计算和比较单位质量MA核素和易裂变核素引起的反应性变化。

The reactivity effects were compared between unit mass nuclear waste element MA and uranium element on the fast neutron reactor model by simulating calculation .

文章介绍了我国发展的瞬态核裂变、核聚变反应过程释放的脉冲中子、伽马混合辐射场探测系统和测量技术。

To explore the performances of a prompt fission or fusion reaction , sophisticated diagnostic techniques and equipments have been developed and established in China .

20世纪三四十年代，原子物理学家们发现中子轰击铀原子核的裂变现象并首次实现可控裂变链式反应，把世界带进了原子能时代。

During the 30s and 40s of the last century atomic physicists discovered the fission of uranium nuclei bombarded by neutrons and realized the first self-sustaining controlled fission chain reaction , which ushered in the atomic age .

用浓缩铀裂变室和俘获探测器测量了组合装置上的235U（包镉）裂变反应率。

Fission reaction-rates of 235U ( wrapped with Cd of 0.8mm ) in the combined setup were measured , using the enriched uranium fission chamber and capturing detector .