Na（3P）＋Rb（5P）碰撞能量转移截面

置于同一池中的钠原子和铷原子，分别被连续染料激光器和铷光谱灯激发到Ｎａ（３Ｐ），Ｒｂ（５Ｐ），Ｎａ（３Ｐ）原子密度由吸收等效宽度技术测定，利用调制技术分离出了凡异核碰撞产生的荧光光谱，观察到了Ｎａ（３Ｐ）和Ｒｂ（５Ｐ）间的碰撞能量俣并现象，并测定了其碰撞截面。     

Realization of an 85Rb Atomic Fountain

An atomic fountain with ^85 Rb cold atoms is reported. A series of time-of-flight signals is obtained, and the measured temperature of the cold atomic cloud is about 2.4μK. It will have potential new applications in the precise measurement of fundamental constants and the proof of the Einstein＇s equivalence principle.     

铷激射器频率的光强和温度效应研究

本文从实验上研究铷激射器频率的光强和温度特性,对与光强无关的激射器频率及与此对应的腔频随泡温的变化作了满意的解释。在降低光强影响的同时,提出降低激射器频率的温度效应的可行方案。 关键词：     

强光谱灯抽运87Rb激射器

提出在光谱灯中采用蘑菇形和圆饼形灯泡代替传统的球形灯,运用高功率射频源成功地点燃了这两种灯,并进行了光抽运⁸⁷Rb激射器实验。它们的发射光强分别为球形灯的2.3和2倍,对应激射器最高输出功率的最佳共振泡温度分别升高5和4℃,激射器最高输出功率由-67.5dBm分别提高到-60和-62dBm。实测⁸⁷Rb激射器的短期频率稳定度的改善与输出功率的提高相符合。 关键词：     

高含量铷化探样品中镍的XRF法测定

对于化探样品中 Rb元素含量超高的样品 ,通过拓宽标准样品的含量范围 ,利用 X射线荧光光谱仪 ,选择既有准确分析值 ,又能代表样品元素含量范围的标准样品 ,经回归计算 ,测得校准曲线 ,对 Rb的含量在 2× 10 -6— 132 0× 10 -6的变化范围内 ,准确测定 Ni的含量     

RbBr/CsBr-CH3OH/C2H5OH-H2O三元体系的溶解度

采用自制的相平衡研究装置,测定了RbBr-CH_3OH/C_2H_5OH-H_2O和CsBr-CH_3OH/C_2H_5OH-H_2O四个三元体系在25、35、45℃三个温度下的平衡溶解度;同时得到了四个三元体系饱和溶液中不同盐浓度下的折光率数据.实验结果表明,在所有的体系中,随着甲醇或乙醇质量分数的增加,RbBr和CsBr在水中的溶解度逐渐降低;并且折光率也逐渐减小.用经验关联方程对溶解度进行了拟合,同时给出了CH_3OH和C_2H_5OH分别对RbBr和CsBr的盐析率曲线.     

Rb+跨人红细胞膜的研究

The erythrocyte hemolysis was examined to assure Rb^＋ to have a weak toxicity toward human body. The way of Rb^＋ transporting into human erythrocytes was determined, and the factors to affect this transport process were evaluated. The effects of extracellular concentration of Rb^＋, incubation temperature, incubation time, medium pH, and specific inhibitors were investigated via flame atomic absorption spectrometry. The results indicated that the membrane transport of Rb^＋ through human erythrocytes was controlled mainly by both active transport and simple diffusion. Every mentioned factor took a positive effect on the Rb^＋ uptake by human erythrocytes, however neither DIDS nor nefidpine could inhibit the uptake of Rb^＋.