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利用能量为８５—１０５ＭｅＶ的１６Ｏ束流，通过１８７Ｒｅ（１６Ｏ，５ｎ）反应研究了１９８Ｂｉ的高自旋态能级结构．用６台ＢＧＯ（ＡＣ）ＨＰＧｅ探测器和一台用于探测低能γ跃迁的平面探测器进行了γ射线的激发函数、γ－γ—ｔ符合及γ射线的角分布测量．基于这些测量，首次建立了包括２６条γ跃迁的１９８Ｂｉ的高自旋能级纲图，确定了一个半寿命为（８．０±３．６）ｎｓ，自旋和宇称为１５＋的同质异能态．基于较重的双奇铋核２００－２０６Ｂｉ能级结构的系统性，定性地对１９８Ｂｉ的能级结构进行了解释．
The high spin state energy structure of 198Bi was studied by 187Re (16O, 5n) reaction using a 16O beam with energy 85-105MeV. Gamma-ray excitation functions, gamma-gamma-t coincidences, and angular distribution of gamma rays were measured using six BGO (AC) HPGe detectors and a planar detector for detecting low-energy gamma transitions. Based on these measurements, the high spin level schema of 198Bi including 26 γ transitions was established for the first time, and a homogeneous energy with a half-life of (8.0 ± 3.6) ns, spin and parity of 15+ was identified state. The energy level structure of 198Bi is explained systematically and qualitatively based on the heavy 200-206Bi energy level structure of the double bismuth core.