Collaborative Research: MRI-Consortium for the Development and Construction of a Longitudinally Polarized Proton and Deuteron Target for CLAS12 at Jefferson Lab

合作研究：杰斐逊实验室开发和构建 CLAS12 纵向偏振质子和氘核目标的 MRI 联盟

• 批准号: 1002418
• 负责人: Edward Brash
• 金额: $ 24.54万
• 依托单位: Christopher Newport University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-04-01 至 2013-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1002418&HistoricalAwards=false
• 关键词: Collaborative; Research; MRI; Consortium; Development

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). This award is for a collaborative effort of researchers from Christopher Newport University (CNU), Old Dominion University (ODU), and the University of Virginia (UVA) to develop and construct a longitudinally polarized proton and deuteron target. This target is intended to be used with the CLAS12 detector as an essential part of the high-priority PAC approved electron scattering experiments to study the internal structure of the nucleon as part of the 12 GeV program at Jefferson Lab (JLab). This will expand the spin structure program at JLab and be used to determine the contribution of the valance quarks to the properties of the nucleon. The target will use standard solid materials (15NH3, 15ND3, and possibly LiD) at ~1K and will be dynamically polarized in the 5 T field of the CLAS12 central solenoid. The design and construction of this target will have positive impacts on the training of future scientists because undergraduate and graduate students will be deeply involved in the process. This award will enable the knowledge transfer from experts at UVA to other researchers. A polarized target with the proposed specifications will have a strong impact on the research program at Jefferson Lab.

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。该奖项是为了表彰克里斯托弗纽波特大学（CNU）、老自治领大学（ODU）和弗吉尼亚大学（UVA）的研究人员合作开发和构建纵向极化质子和氘靶。该目标旨在与CLAS 12探测器一起使用，作为高优先级PAC批准的电子散射实验的重要组成部分，以研究核子的内部结构，作为杰斐逊实验室（JLab）12 GeV计划的一部分。这将扩展JLab的自旋结构计划，并用于确定价夸克对核子性质的贡献。目标将使用标准固体材料（15 NH3，15 ND 3，可能还有LiD），温度约为1 K，并将在CLAS 12中心螺线管的5 T磁场中动态极化。该目标的设计和构建将对未来科学家的培养产生积极影响，因为本科生和研究生将深入参与该过程。该奖项将使知识从UVA的专家转移到其他研究人员。具有拟议规格的极化目标将对杰斐逊实验室的研究计划产生重大影响。