RUI: Development of a Position Resolving High Count Rate Detector System for Low Energy Nuclear Physics

北佛罗里达大学正在开发一种重离子跟踪系统，以支持佛罗里达州立大学超导加速器实验室的核天体物理研究。该跟踪系统由两个相同的离子探测器组成，仿照阿贡国家实验室碎片质量分析器上实施的焦面探测器系统。在每个探测器中，当重离子通过时，一个薄的塑料箔会发射出德尔塔电子。德尔塔电子从箔片加速到电子“镜面”，它将电子反射到一堆微通道板电子倍增器。探测器系统将提供关于重离子入射的位置和方向信息，入射速度最高可达每秒100万。该系统将用于跟踪FSU的外来(放射性)束流设施RESOLUT产生的离子物种。RESOLUT研究计划的最初目标是研究核反应，这些核反应是恒星新星爆炸的重要模型。本科生将参与这个项目的各个方面。

A heavy-ion tracking system is being developed by the University of North Florida to support nuclear astrophysics research at the Superconducting Accelerator Laboratory of the Florida State University (FSU). The tracking system consists of two identical ion detectors and is modeled after a focal plane detector system implemented at the Fragment Mass Analyzer of the Argonne National Laboratory. In each detector, a thin plastic foil emits delta electrons when a heavy ion passes through it. The delta electrons are accelerated away from the foil toward an electron "mirror" which reflects the electrons toward a stack of micro channel-plate electron multipliers. The detector system will provide position and direction information on heavy ions incident at rates up to approximately one million per second. The system will be used to track ion species generated by the exotic(radioactive) beam facility, RESOLUT, at FSU. The initial goal of the RESOLUT research program is to study nuclear reactions that are important inmodels of stellar nova explosions. Undergraduate students will participate in all aspects of this project.