粒子加速器

Accelerators are used to study the structure of atomic nuclei and the nature of subatomic particle s and their fundamental interactions.

加速器用来研究原子核的结构，亚原子粒子的性质及其基本相互作用。

Two methods are presented for calculating the equilibrium orbit of charged particle in an AVF cyclotron.

讨论了AVF回旋加速器中粒子平衡轨道的分析方法。

In addition,we studied the PIN punch-through effect,and obtained the PIN punch-through data with 18cm long Pb WO4 crystal at the electron beam energies higher than 20GeV for the first time,and these data gave valuable information to ALICE/PHOS.

在CERN的SPS加速器上的束流测试，得到比较满意的结果；并对穿透效应做了实验研究，首次获得100GeV μ粒子和20GeV以上电子束的18厘米长PbWO4晶体探测器PIN 硅光管穿透效应实验数据，为ALICE／PHOS提供了有价值的参考资料。

In this dissertation, we will discuss how to increase the time resolution of TOF measurement.

在新一代加速器物理实验中，随着末态粒子能量的提高，对TOF测量的精度要求已经达到80～100ps，传统的TOF测量技术受到了严重的挑战。

Complementary chaos and spin polarization stability in cyclotrons are studied from the nonautonomous SU(2) dynamical system by the algebraic dynamical method.

带自旋离子在加速器中沿回路运行，相对于磁极运动的粒子会感受到一个磁极产生的随时间变化的磁场。

Accelerator mass spectrometry ; Particle identification ; Isobars

加速器质谱；粒子鉴别；同量异位素

The FencePost Error - Some friends and I were talking about the recent Dayton police lawsuit - where people are suing the city because only a small percentage of African America...

寻找Higgs粒子的最新进展-在LHC启动并正式运转之前，美国Fermilab的Tevatron是世界上能量最高的加速器。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。