The refractive scattering of ¹⁷F+¹²C is analyzed systematically by using the optical model with the cluster folding potentials. First of all, the applicability of the cluster folding approach is validated by analyzing the elastic scattering data of ¹³C+¹²C and ¹²C+¹²C at 20 A MeV. To perform the optical model calculations of ¹⁷F+¹²C, the less ambiguous optical potentials of ¹⁶O+¹²C and the global optical potential of p+¹²C are used to give the cluster folding potentials. Apart from the reproduction of the experimental data of the elastic scattering of ¹⁷F+¹²C at 10 A MeV, the Airy patterns are noticeable from about 10 to 40 A MeV. For comparison, the optical model calculations of ¹⁷O+¹²C at the same energies per nucleon are also performed through the cluster folding approach, of which the results are very similar to those of ¹⁷F+¹²C. For both ¹⁷F+¹²C and ¹⁷O+¹²C, the energy dependence of the Airy minima is extracted and compared with that in the case of ¹⁶O+¹²C. It is found that the Airy minima characteristic of ¹⁷F+¹²C is nearly identical with that of ¹⁷O+¹²C and similar to that of ¹⁶O+¹²C, which indicates the strong contributions from the ¹⁶O core to the appearance of the nuclear rainbow effects in ¹⁷F scattering. At last, the calculated total reaction cross sections are compared with the strong absorption model, which verifies the reasonableness of the present optical model calculations.

通过使用具有簇折叠势的光学模型，系统地分析了¹⁷ F + ¹² C的折射散射。首先，通过分析20 A MeV下¹³ C + ¹² C和¹² C + ¹² C的弹性散射数据，验证了簇折叠方法的适用性。要执行¹⁷ F + ¹² C的光学模型计算，¹⁶ O + ¹² C的不太模糊的光学势和p + ¹²的全局光学势C用于给出簇折叠势。除了在10 A MeV下再现¹⁷ F + ¹² C弹性散射的实验数据外，从约10 A MeV到40 A MeV还可以看到艾里图案。为了进行比较，还通过簇折叠方法对每个核子具有相同能量的¹⁷ O + ¹² C进行了光学模型计算，其结果与¹⁷ F + ¹² C的结果非常相似。对于¹⁷ F + ¹² C和¹⁷ F O + ¹²C，提取出艾里极小值的能量依赖性，并与¹⁶ O + ¹² C的情况进行比较。发现¹⁷ F + ¹² C的艾里极小值特性与¹⁷ O + ¹² C几乎相同，并且与那的¹⁶ O + ¹² C，其表示从该强的贡献¹⁶ ø芯在核彩虹外观效果¹⁷ ˚F散射。最后，将计算得到的总反应截面与强吸收模型进行比较，验证了目前光学模型计算的合理性。