The tilted-foil method for producing spin-polarized radioactive isotope beams has been studied for the application to nuclear physics and materials science, using the radioactive nucleus ~8Li (I ~π = 2 ~+, g = 0.82678(9), T _(1/2) = 0.838(6)s) produced at the Tokai Radioactive Ion Accelerator Complex (TRIAC). We successfully produced polarization in a ~8Li beam of 7.3 ± 0.5% using 15 thin polystyrene foils (4.2 μg/cm _2) fabricated especially for this purpose. A systematic study of the nuclear polarization as a function of the number of foils, beam energy, tilt angle and foil material has been performed, confirming the features of the tilted-foil technique experimentally. The contributions made to the nuclear polarization of ~8Li nuclei by the atomic states was investigated.
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机译：已经研究了利用自旋核〜8Li（I〜π= 2〜+，g = 0.82678（9），T _来产生自旋极化放射性同位素束的倾斜箔方法，并将其应用于核物理和材料科学。 （1/2）= 0.838（6）s）在东海放射性离子加速器复合体（TRIAC）处产生。我们使用15个为此专门制造的薄聚苯乙烯箔（4.2μg/ cm _2）在7.3±0.5％的〜8Li光束中成功产生了极化。已经对核极化与箔片数量，束能量，倾斜角和箔片材料的关系进行了系统的研究，通过实验证实了倾斜箔技术的特征。研究了原子态对〜8Li原子核极化所作的贡献。
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