查询词典 fast neutrons

It is found that the most important environmental radiation impact component of CSR is the skyshine neutrons.

计算表明，CSR对环境剂量影响最大的是天空返照中子。

The HIRFL (heavy ion research facility in Lanzhou)will be used as the injector. For the shielding design of CSR, the secondary neutrons due to the ion beam loss,their spectra and angular distributions were estimated based on the experimental results. The dose equivalent outside the shielding surface and in the surrounding environment and the neutron skyshine dose equivalent were also estimated in this study.

为了CSR的屏蔽设计，本文利用现有的实验数据计算了由于束流损失产生的中子及其能谱、角分布，同时也估算了屏蔽体外表面的中子剂量、环境中子剂量及天空返照中子剂量。

This paper describes the performance of energy response to neutrons and the calibration method of Cd Cap type thermoluminescent neutron dosemeters for personal neutron dose monitoring.

本文叙述了用作个人中子剂量监测的镉帽型热释光中子剂量计的中子能响特性和刻度方法。

After accreting sufficient matter, the neutron star can convert into a strange star, a star made up entirely of strange quarks (Ordinary matter such as protons and neutrons are made up of only up quarks and down quarks).

奇异星是一颗完全由奇异夸克所组成的恒星，而质子和中子等普通物质都只是由上乘和下乘夸克组成。

The spatial distribution of neutrons inside the concrete shield of KENS were measured by the combined use of activation detectors and an imaging plate.

描述了一种联合使用活化探测器和成像盘技术探测中子注量的方法。

This device is absolute in the sense that it does not require calibration in a known field of neutrons.

从不必要在已知的中子场中进行刻度的这意义上讲，这种装置是绝对的。

This conclusion is consistent with the idea that all atomic nuclear are built wholly of neutrons and protons.

这个结论与如下的思想是一致的：所有的原子核全部由中子和质子组成。

Here we report experimental evidence for gravitational quantum bound states of neutrons.

在这里我们报告的实验证据是中子的引力量子束缚态。

It is known that neutrons act differently from protons.

大家知道，中子的作用与质子不同。

Science tells us that our world is made up of protons, electrons, and neutrons.

科学告诉我们世界是由质子电子和中子构成的，他们忘记了还有傻子。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。