裂变

丹麦的一些科学家，认识到了这种原子裂变或原子分裂的军事意义。

Some scientists in Denmark realized the military significance of this atomic fission or splitting of the atom .

核裂变释放出巨大的能量。

Nuclear fission releases tremendous amounts of energy .

在反应堆里，大分子裂变为小分子。

Inside the reactor the large molecules are cracked into smaller molecules .

自由中子可以轰击其它的核，导致一系列的裂变，称为链锁反应。

The free neutrons can bombard other nuclei , leading to a series of fissions a chain reaction .

~（12）C离子与各种靶核相互作用的裂变激发函数

Fission excitation function in interactions of ~ ( 12 ) c ions with various targets

~（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

美国等西方国家社会裂变中的认同群体与ethnicgroup

Identity Group and Ethnic Group in the Social Fission of the United States and Other Western Countries

~（221）Ac核裂变及转动态的连续介质模型计算

Calculation of fission and rotating states of ￣( 221 ) Acusing continuous medium model

组合装置上~（235）U裂变反应率测量

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

~（235）U核燃料反应堆内的裂变产物放射性计算

Calculation of the fission-product radioactivity of nuclear reactor with nuclear fuel 235U

~（238）U裂变样品质量的比对

The intercomparison of mass of ~ ( 238 ) U fission deposits

用∧~（238）u超核聚变检验裂变机制的可行性探讨

Probing into mechanism of nuclear fission by hypernuclei _a ~ ( 238 ) u

裂变谱中子诱发~（238）U裂变的质量分布

Mass distribution in fission spectrum neutron induced fission of ~ ( 238 ) u

用U核裂变碎片径迹法研究PET薄膜的高分子聚集态结构

Effect of the state of macromolecular aggregation on the uranium nuclear fission tracks in PET films

~（235）U裂变中子谱的平均（n，p）反应截面的系统研究

Systematics of the ( n , p ) Reaction Cress Sections Averaged over ￣( 235 ) U Thermal Fission Neutron Spectrum

从裂变产物中提取~（135）Cs的研究

Separation of Carrier - free ~ ( 135 ) Cs From Fission Products

结果就是因2种基因无法和谐共振而产生的部分核裂变或说对DNA和分子结构的部分焚烧。

The result was partial fission or a burning up of the DNA and molecular structure wherever the two genetics failed to resonate .

研制了狭缝外延式高灵敏大面积PIN裂变中子探测系统。

A fission neutron detector system with frontward_extended lead slot collimator has been developed and tested .

裂变产物~（134）Cs经完整和损伤皮肤的吸收

Penetration the Fission Product of ~ ( 134 ) Cs-Carbonate through Intact and Abraded Skins

14MeV中子穿过组合材料引发~（238）U绝对裂变率的测量

Absolute Fission Rate Measurement of ~ ( 238 ) U Induced by 14 MeV Neutrons Penetrated Composite Material

用~（252）Cf自发裂变中子源刻度中子探测器效率

Efficiency calibration of neutron detectors with ￣( 252 ) cf spontaneous fission neutrons

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

~（235）U热（慢）中子裂变碎片在水中的射程

Ranges of the fragments from thermal ( slow ) neutron fission of ~ ( 235 ) u in water

从四维Langevin方程的MonteCarlo模拟计算裂变碎片动能分布

Calculation of the kinetic-energy distributions of fission-fragments from Monte-Carlo simulation to the four-dimensional Langevin equation

用类α衰变模型计算了~（235）U热中子诱发裂变碎块的质量、动能分布。

Mass and kinetic energy distribution of fragments in thermal-neutron in-duced fission of U are calculated by a α decay-like model .

对裂变碎片探测器和中子探测器之间空气层及测量室的墙壁上散射的影响，用飞行时间方法进行了测量，也用MonteCarlo方法进行了计算，并对用两种方法得到的结果进行了比较。

The scattering by air and the walls of the measuring room was determined by both experiment and Monte Carlo simulation .

我也有中子的收益率，如果一个裂变发生了在能量E，这是，产生的中子能量的光谱。

We have a yield rate of neutrons , if a fission occurs at energy E this is the spectrum of neutron energies that are produced .

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 .

提出一种快速求解圆柱核裂变材料几何特性（圆柱的高与半径）的方法，并用数值计算得出的精确G因子值验证了该方法的可行性。

One fast way to solve the geometric information , i. e. , height and radius of the cylinder , was verified by numerically calculated G factor .