Experimental Nuclear Physics Research

9312428 Nadasen密歇根大学迪尔伯恩的核物理研究计划由首席研究员和大约四名本科生进行。 它侧重于核结构和核反应机制的研究，以评估理论预测，并提供更好的理解一般核现象。 210和318 MeV的锂6离子在一系列目标上的弹性散射提供了一个整体宏观描述的锂6核相互作用的能量和目标质量的依赖性。 更重要的是，这些数据用于评估微观折叠模型计算。 将这些研究扩展到Li 7，Li 9和Li 11，将说明额外中子引起的扰动和使用不稳定束的影响。 利用MSU 4pi阵列对核-核碰撞产生的轻离子进行了测量，阐明了重离子反应的许多特征。 布拉格曲线探测器和平行板雪崩计数器的加入方便了对较重碎片的测量，从而拓宽了对核物质和重离子反应动力学的研究。 在100 - 200 MeV区域的（p，pHe 4）反应研究和在580 MeV的（He 4，2 He 4）的测量表明，能量高于100 MeV/核子的射弹提供了可靠的信息α核集群。 这些研究将继续进行，以便研究较重核的α簇结构，并希望确定长寿命核的α衰变率。

9312428 Nadasen The nuclear physics research program of the University of Michigan Dearborn is carried out by the principal investigator and about four undergraduates students. It focuses on studies of nuclear structure and nuclear reaction mechanisms in order to evaluate theoretical predictions and to provide a better understanding of nuclear phenomena in general. Elastic scattering of Li 6 ions at 210 and 318 MeV on a range of targets has provided a global macroscopic description of the Li 6 nucleus interaction in terms of its energy and target mass dependence. More fundamentally, the data were used to evaluate microscopic folding model calculations. Extension of these studies to Li 7, Li 9 and Li 11 will illustrate the perturbation caused by the extra neutrons and the effect of using unstable beams. Measurements of light ions emanating from nucleus nucleus collisions using the MSU 4pi Array have elucidated many features of heavy ion reactions. The addition of Bragg curve detectors and parallel plate avalanche counters facilitate measurement of heavier fragments and thus broadened the studies of nuclear matter and dynamics of heavy ion reactions. (p,pHe 4) reaction studies in the 100 200 MeV region and measurements of (He 4, 2He 4) at 580 MeV indicate that projectiles with energies above 100 MeV/Nucleon provide reliable information of alpha clustering in nuclei. These studies will be continued in order to investigate alpha cluster structures of heavier nuclei with the hope of determining alpha decay rates of long lived nuclei.