核素

The sensitivities were examined by exchanging the minior actinides of CENDL-3.0 and JENDL-3.2 one after another.

2库的计算结果作为参考结果，依次用CENDL-3.0库及JENDL-3.2库中相应的锕系核素替换ENDF/B-VI。

A weighting spectrum differing from WIMS 69 group library is used to calculate group constants. The importance of actinides and structure material is consided during the selecting of input parameters according to the above sensitivity analyse.

同时，参考前面灵敏度分析的结果，在研制WIMS82群库时，充分考虑了灵敏度较大的錒系核素和结构材料核在温度、参考σ〓值、Goldstein-Cohen λ〓值等参数的选取时应具有与〓U、〓Pu同样重要的地位。

The nuclear data for minor actinides with high accuracy are playing an important role in nuclear technology applications, including reactor design and operation, spent fuel cycle concepts, estimation of the amount of minor actinides in high burn-up reactors and the minor actinides transmutation.

裂变核全套中子评价数据对反应堆设计和安全运行、乏燃料少钢系核素嬗变率、嬗变系统及高燃耗反应堆设计提供重要的基础数据。

The conditions for measuring nuclide of actinium series with γ spectrometry were discussed.

探讨了γ谱方法测定锕系各个核素的适用条件。

At the same time , carry on detailed calculation to minor actinium , Pu and several kinds of long term fission products finally and make up the prediction data of that nuclide s accumulate quantity .

根据我国能源需求和核电发展状况的研究结果，对未来50年核电总体装机容量和乏燃料增长趋势进行了预测，对乏燃料中次量锕系核素，钚和几种长寿命裂变产物进行了计算，获得了累积量的预测数据。

Ac? 231 Pa? 235 U of actinium series in sediment core collected from eastern Pacific were measured by HPGe γ spectrometry.

用HPGeγ能谱法测定了一个东太平洋沉积物岩心的锕放射系核素2 2 7Ac、2 31Pa、2 35 U 。

Then, which kinds of soil can adsorb the nuclides well?

那么，什么样的土壤对核素的吸附性能较好？

Measurement of gamma ray activities can be transformed to that of alpha ray and beta ray activities. When natural radionuclides are well distributed in materials, there is fixed interrelationship between alpha ray and beta ray activities in any part of a decorative material and alpha ray and beta ray surface activities.

同时，ICRP和IAEA都已明确我国《放射卫生防护基本标准》GB4792-1984对公众的剂量限值不适用于天然放射性，而我们的国家标准仍使用土壤的剂量转换因子和公众的年剂量限值来推导建筑材料的核素限量。

Americium has lots of species in aquatic solution. It is difficult to measure the distribution of americium species while they can be calculated by many geochemical software.

Am在水溶液中的形态分布复杂，直接测量困难，使用相关软件依据热力学常数推算核素的形态分布简单可行。

In square chart of nucleus with parameters S=2Z-N H=N-Z,It makes connection for nine natural nuclei with odd-odd nucleons.

在参量S-H正方形核素图中，建立了有天然丰度的9种奇奇核素的整数联系。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。