Operation of the Nuclear Structure Laboratory (Physics)

该奖项将支持重离子研究计划 核结构实验室，国家 位于斯托尼布鲁克的纽约大学， 助推加速器与FN型串列加速器相结合 加速器 加上实验设备和 由斯托尼布鲁克集团开发的测量技术， 这种能力使一种异常复杂和 各种各样的实验。 继续发展 研究设备，包括超导加速器 技术，将与核 科学计划。 高激发下原子核的集体激发 能量，特别是巨共振，将被研究 通过观察衰变伽马射线 这些研究 探针形状随核温度而变化。 的 具有非常高角动量的核的性质将是 使用康普顿抑制阵列测量，高分辨率 锗探测器。 这项工作探讨了形状的变化， 微观核结构作为角的函数 势头. 激光光谱学将被用于研究原子核远离 稳定 激光光谱学提供了有关核 尺寸和形状通过超精细结构测量。 亚势垒截面的异常增强 将通过测量来研究重核的聚变 使用新的布拉格曲线光谱仪。 测量 粒子-粒子相关性将被制作和分析， 研究核-核反应动力学。 一种特殊的探测器 数组是为此目的而创建的。 这项研究将由五名教员进行， 十五名研究生和五名博士后研究员。

This award will support a program of research in heavy ion nuclear physics at the Nuclear Structure Laboratory, State University of New York at Stony Brook, using a superconducting booster accelerator in conjunction with a model FN tandem accelerator. Together with the experimental equipment and measurement techniques developed by the Stony Brook group, this capability makes possible an unusually sophisticated and diverse range of experiments. Continued development of research equipment, including superconducting accelerator technology, will be carried out in parallel with the nuclear science program. Collective excitations of nuclei at high excitation energies, and giant resonances, in particular, will be studied with observation of the decay gamma radiation. These studies probe shape changes as a function of nuclear temperature. The properties of nuclei having very high angular momenta will be measured using an array of Compton suppressed, high resolution Ge detectors. This work probes changes in shape and microscopic nuclear structure as a function of angular momentum. Laser spectroscopy will be used to study nuclei far from stability. Laser spectroscopy provides information on nuclear sizes and shapes via hyperfine structure measurements. Anomalous enhancements in the cross section for subbarrier fusion of heavy nuclei will be studied through measurements using a new Bragg curve spectrometer. Measurements of particle-particle correlations will be made and analyzed to study nucleus-nucleus reaction dynamics. A special detector array has been assembled for this purpose. The research will be carried out by five faculty members, fifteen graduate students and five post-doctoral fellows.