RUI: Studies of Neutron-Rich Rare Isotopes With the Modular Neutron Array (MoNA) Detector at the National Superconducting Cyclotron Laboratory (NSCL)

康科迪亚学院将在国家超导回旋加速器实验室参与使用模块中子阵列(MONA)进行的快稀有同位素实验中的丰中子研究。穆尔黑德的康科迪亚学院是MONA联盟的成员，并在MONA探测器模块的测试和组装方面发挥了主导作用。康科迪亚大学的本科生将使用MONA探测器参加NSCL的实验，并在康科迪亚学院对实验期间采集的数据进行分析。MONA计划在2003年春季上线。康科迪亚学院将是利用MONA开始研究沿中子滴线的核系统计划的一部分。MONA的高探测效率(70%)和模块化设计将允许通过选定的分裂反应来研究短寿命核的结构。目前正在佛罗里达州立大学建造的扫描磁铁一旦投入使用，MONA将被用来探索非常富含中子的原子核的分裂，这与带电碎片被扫描磁铁偏转的情况相吻合。我们将用顺序粒子衰变光谱研究远离稳定的核的非束缚中子基态。此外，还将探索使用MONA探测器和清扫器研究丰中子系统中的多中子晕和集体激发。

Concordia College will participate in the investigation of neutron-richnuclei using the Modular Neutron Array (MoNA) in experiments with fast rareisotopes at the National Superconducting Cyclotron Laboratory. Concordia College at Moorheadis a member of the MoNA Consortium and has played a leading role in testingand assembling the MoNA detector modules. Concordia undergraduate studentswill participate in experiments at the NSCL using the MoNA detector and perform analysis at Concordia College on the data taken during these experiments. MoNA is planned to come online in the Spring of 2003.Concordia College will be part of the effort to use MoNA to begin a programof study of nuclear systems along the neutron drip-line. The high detectionefficiency (70%) and modular design of MoNA will allow the study of thestructure of short-lived nuclei via selected break-up reactions. Once thesweeper magnet, currently being constructed at Florida State University,becomes operational MoNA will be used to explore the break-up of veryneutron-rich nuclei in coincidence with the charged fragments being deflected by the sweeper magnet. The neutron-unbound ground states of nuclei far from stability will be studied using sequentialparticle decay spectroscopy. In addition studies of multi-neutron halos and collectiveexcitations in neutron-rich systems using the MoNA detector and the sweeper will beexplored.