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完成了１９Ｆ＋９３Ｎｂ重离子耗散碰撞激发函数的两次独立测量．束流１９Ｆ８＋的入射能量１００—１０８ＭｅＶ，能量步长２５０ｋｅＶ；两次测量中分别使用了厚度为７０和７１μｇ／ｃｍ２的９３Ｎｂ靶，其它宏观实验条件（例如，入射能量及能量步长，探测器及其探测角度，加速器、电子学以及数据获取系统的参数选取等等）则保持完全相同．实验结果表明，两次测量所得到的耗散产物截面的激发函数的不平滑结构具有不可重复性．这一实验结果支持了最近提出的理论预言：“在复杂量子碰撞中存在对初始条件的极端敏感性与混沌运动．”
Two independent measurements of the 19F + 93Nb heavy ion dissipative collision excitation function were completed. Beam 19F8 + has an incident energy of 100-108 MeV and an energy step of 250 keV; 93Nb targets of 70 and 71 μg / cm2 in thickness are used for both measurements. Other macroscopic experimental conditions (eg, incident energy and energy step, detector and / Its detection angle, accelerators, electronics and data acquisition system parameter selection, etc.) remain exactly the same. Experimental results show that the non-smooth structure of the excitation function of the dissipative product cross section obtained by the two measurements is non-repeatability. This experimental result supports the recently proposed theoretical predictions: “There is extreme sensitivity to initial conditions and chaos in complex quantum collisions.”