Assessment of Proton Deflectometry for Exploding Wire Experiments

爆炸线实验的质子偏转测量评估

• 批准号: 0903876
• 负责人: Farhat Beg
• 金额: $ 1.5万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-10-01 至 2012-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0903876&HistoricalAwards=false
• 关键词: Assessment; Proton; Deflectometry; Exploding; Wire

This award is made in response to a proposal submitted to and reviewed under the NSF/DoE Partnership in Basic Plasma Science and Engineering joint solicitation NSF 08-589. The award provides funds to support undergraduate participation in the overall research effort, which is being funded separately by the DoE under contract UCSD (Science report #09ER55038).This research investigates strongly driven MHD systems and the influence of magnetic field topology on plasma evolution in pulsed-power driven plasmas. This will be examined using an advanced diagnostic method, namely proton probing, and involves both experimental and computational work. The experimental campaign to assess and optimize proton deflectometry will be done for various exploding wire configurations on the 1MA ZEBRA generator at the Nevada Terawatt Facility using the 50TW Leopard laser, with data interpretation by use of the 3D resistive MHD GORGON and 3D hybrid-PIC LSP codes. The experimental program involves intense field-matter interaction in the generation of the proton probe, as well as the generation of plasma subjected to MG scale magnetic fields. The computational aspect will apply two well documented plasma simulation codes, one 3D resistive MHD and one 3D Particle-in-Cell (PIC), in combination for the first time to provide accurate interpretation of the experimental results. This research includes 2 graduate students, one at UCSD and one at NTF, who will be involved with both the experimental physics work and the MHD and PIC modeling of the system. Data resulting from the research program will be broadly disseminated by publication in scientific journals, and presentation at international and national conferences and workshops. Graduate and undergraduate students will present results.The NSF support of undergraduate participation adds a broader educational impact through the early-year training of students by introducing them to scientific research as a possible career path.

该奖项是为了响应提交给NSF/DoE基础等离子体科学与工程合作伙伴关系NSF 08-589联合招标的提案。该奖项提供资金，以支持本科生参与整体研究工作，这是由能源部根据合同UCSD单独资助（科学报告#09ER55038）。这项研究调查强驱动磁流体系统和磁场拓扑结构对脉冲功率驱动等离子体中等离子体演化的影响。这将使用先进的诊断方法，即质子探测，并涉及实验和计算工作进行检查。将在内华达州太瓦设施的1 MA ZEBRA发生器上使用50 TW Leopard激光器对各种爆炸丝配置进行评估和优化质子偏转测量的实验活动，并使用3D电阻MHD MIGON和3D混合PIC LSP代码进行数据解释。该实验方案涉及强烈的场物质相互作用的质子探针的产生，以及产生的等离子体受到MG规模的磁场。计算方面将应用两个有据可查的等离子体模拟代码，一个3D电阻MHD和一个3D Particle-in-Cell（PIC），第一次结合起来，以提供准确的解释实验结果。这项研究包括2名研究生，一名在UCSD，一名在NTF，谁将参与实验物理工作和系统的MHD和PIC建模。研究计划产生的数据将通过在科学期刊上发表以及在国际和国家会议和研讨会上发表而广泛传播。研究生和本科生将展示成果。NSF对本科生参与的支持通过向学生介绍科学研究作为可能的职业道路，通过对学生的早期培训增加了更广泛的教育影响。