【摘要】 为了开展核物理、粒子物理和凝聚态物理方面的研究 ,在中国原子能科学研究院建成了 1台 β核磁共振及 β核四极共振谱仪。利用该谱仪精确测量了12 B的极化度和12 B基态磁矩 ,所测量的12 B在Cu中的极化度为 1 1 4%± 0 6% ,12 B磁矩 μ =1 0 0 0 2± 0 0 0 2 8nm。实验应用证实该谱仪性能可靠。更多还原

【Abstract】 In order to conduct the study on nuclear physics, particle physics and condensed matter physics, the β-NMR and β-NQR spectrometer was established in China Institute of Atomic Energy. The lifetime, magnetic moment and polarization of 12B were measured with it. The measured magnetic moment of 12B is (1.000 2±0.002 8) nm and the polarization of 12B in Cu is 11.4%±0.6%. The experimental results show the reliability of the established β-NMR and β-NQR spectrometer.更多还原