^(13)N次级束的产生

Production of ^(13)N Secondary Beam

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。

A ^13N secondary beam to be used in the study of nuclear astrophysics was produced by the ^2H（^12C,^13N）n reaction using the secondary beam line of the HI-13 tandem accelerator in Beijing. The energy of the ^13N secondary beam is （70.2±0. 7） MeV, with a purity of 91% and the intensity of about 10 s a^-1·pnA^-1 after collimation. The beam can be used for the study of transfer reaction in inverse kinematics.