【摘 要】
：
在北京串列加速器次级束流线上通过~2H(~(12)C,~(13)N)n反应产生了可用于核天体物理研究的~(13)N次级束。经磁刚度选择以及速度选择,准直后的次级束纯度达91%,能量为(70.2±0
【机 构】
：
中国原子能科学研究院核物理研究所,中国原子能科学研究院核物理研究所,中国原子能科学研究院核物理研究所,中国原子能科学研究院核物理研究所,中国原子能科学研究院核物理研究所,中国原子能科学研究院核物理研究
论文部分内容阅读
在北京串列加速器次级束流线上通过~2H(~(12)C,~(13)N)n反应产生了可用于核天体物理研究的~(13)N次级束。经磁刚度选择以及速度选择,准直后的次级束纯度达91%,能量为(70.2±0.7)MeV,强度约为10s~(-1)·pnA~(-1),可用来进行逆几何转移反应的实验测量。
The ~ (13) N secondary beam, which can be used for nuclear astrophysics research, is produced by ~ 2H (~ (12) C, ~ (13) N) n reaction on the secondary beamline of tandem accelerator in Beijing. With the selection of magnetic stiffness and speed, the purity of the secondary beam after collimation is 91%, the energy is 70.2 ± 0.7 MeV and the intensity is about 10s -1 pnA -1, Experimental Measurement of Geometric Transfer Reaction.
其他文献
笔者曾把郭象之学解释为多元有机论,在此基础上,本文着重辨析独化说、天理说、自然即名教说、圣人说和迹本论五个问题,指出其内部存在的理论缺陷,以及引发的问题。笔者认为郭
A new feature selection method is proposed based on the discern matrix in rough set in this paper. The main idea of this method is that the most effective featu
Combined with the phase transformations in rolling, the phase configuration, the tensile strength, and the yield strength with different terminal rolling grain
Two types of soluble organic matter, the free and adsorbed, were obtained and quantified from the brackish to saline lake source rocks. The adsorbed type was ex
Based on the so-called partial continuation model with exact finite measurements, a new stochastic assessment procedure is introduced. For every satellite pair,
A two-dimensional coupling modified cellular automaton (MCA)-transport model has been employed to investigate the asymmetrical dendritic growth behavior in a fl
It is by now a well established fact that the overwhelming hazard from fire is smoke as far as the death of people in the fire is concerned. There are many meth
To evaluate the fault location and the failure prediction models, simulation-based and code-based experiments were conducted to collect the required failure dat
There are many natural convection processes in various fields, and it is still valuable to investigate the fluid dynamics and heat transfer of natural convectio
Study on the whispered tone is important to speech recognition and conversion in whispered Chinese. In this paper, the characteristics of whispered speech are i