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

康科迪亚学院将参与使用模中子阵列（MoNA）在国家超导回旋加速器实验室进行快速稀有同位素实验的富中子核研究。穆尔黑德的康考迪亚学院是MoNA联盟的成员之一，在测试和组装MoNA探测器模块方面发挥了主导作用。康考迪亚大学的本科生将在美国国家科学实验室使用MoNA探测器进行实验，并在康考迪亚学院对实验期间获得的数据进行分析。MoNA计划在2003年春天上线。康科迪亚学院将参与利用MoNA开展沿中子滴线的核系统研究项目。MoNA的高检测效率（70%）和模块化设计将允许通过选择的分裂反应来研究短寿命核的结构。一旦“扫荡磁铁”（目前正在佛罗里达州立大学建造）投入使用，MoNA将被用于探索富含中子的原子核的分裂，而这些裂变恰好与“扫荡磁铁”偏转的带电碎片相吻合。远离稳定的原子核的中子非束缚基态将使用序次粒子衰变光谱进行研究。此外，还将利用MoNA探测器和扫频器研究富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.