RUI: Neutron Physics from 4HE to the Edge of the Dripline
RUI: Neutron Physics from 4HE to the Edge of the Dripline
批准号:
1205537
负责人:
Sharon Stephenson
金额:
$14.48万
依托单位:
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
2012
资助国家:
美国
项目状态:
已结题
起止时间:
2012-08-15 至 2015-12-31
中文摘要
外来核是短命的,几乎不稳定的富含中子的系统——氧-24,锂-12,铍-13。对这种核的研究是国际核物理学长期计划的一个关键组成部分。这些原子核为我们提供了有关原子核结构的新信息。美国对这项工作的承诺可以从国家超导回旋加速器实验室(NSCL)未来稀有同位素束设施(FRIB)的建设中看出。该奖项是为了支持由研究科学家、教师、博士后、研究生和本科生组成的MoNA合作小组的工作。我们利用国家超导回旋加速器实验室(NSCL)的稀有同位素束流和稀有同位素束流设施的未来束流,利用专门为这类工作设计的独特实验系统——模块化中子阵列(MoNA)、新型大面积多机构闪烁体阵列(LISA)和Sweeper带电碎片探测器系统,研究了奇异核的结构。我们致力于更好地理解轻但中子丰富的原子核中的非束缚态。通过敲除动力学和库仑解离,解决了核结构问题,特别是核结构如何作为核稳定性的函数而变化。我们的实验活动通知了天体物理学界,因为我们的工作有助于确定恒星过程中的伽马-中子速率。
英文摘要
Exotic nuclei are short-lived, barely stable systems rich with neutrons - Oxygen-24, Lithium-12, Beryllium-13. Studies of such nuclei are a key component to the international long-range plan for nuclear physics. These nuclei provide us with new information about the structure of the nucleus. The US commitment to this work can be seen in the construction of the future Facility for Rare Isotope Beams (FRIB) at the National Superconducting Cyclotron Laboratory (NSCL). This award is to support the work of the MoNA collaboration, a group comprised of research scientists, faculty, postdocs, graduate students, and undergraduates. We study the structure of exotic nuclei with a unique experimental system designed specifically for this kind of work, the Modular Neutron Array (MoNA), the new Large-area Multi-Institutional Scintillator Array (LISA), and the Sweeper charged-fragment detector system, using the rare isotope beams at the National Superconducting Cyclotron Laboratory (NSCL) and the future beams at the Facility for Rare Isotope Beams. We work to better understand unbound states in light but neutron-rich nuclei. Through both knock-out dynamics and Coulomb dissociation, nuclear structure questions, especially how nuclear structure changes as a function of nuclear stability, are addressed. Our experimental campaign informs the astrophysics community, since our work helps determine the gamma-neutron rates in stellar processes.
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会议论文
RUI: Collaboration to Enhance Participation of Minority and Undergraduate Students in Nuclear Science
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批准号:1713956
-
项目类别:Continuing Grant
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资助金额:$10.5万
-
财政年份:2017
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负责人:Sharon Stephenson
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依托单位:
RUI: Exploring Nuclear Structure through Collaborative Research
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批准号:1613429
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项目类别:Standard Grant
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资助金额:$2.8万
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财政年份:2016
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负责人:Sharon Stephenson
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依托单位:
MRI-Consortium: Development of a Neutron Detector Array by Undergraduate Research Students for Studies of Exotic Nuclei.
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批准号:0922335
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项目类别:Standard Grant
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资助金额:$11.83万
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财政年份:2009
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负责人:Sharon Stephenson
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依托单位:
RUI: United States-Russia Investigation of the Neutron-Neutron Scattering Length
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批准号:0555652
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项目类别:Continuing Grant
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资助金额:$15.0万
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财政年份:2006
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负责人:Sharon Stephenson
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依托单位:
NSF International Research Fellowship Program: A Direct Measurement of the Neutron-Neutron Scattering Length at YAGUAR
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批准号:0107263
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项目类别:Fellowship Award
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资助金额:$1.98万
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财政年份:2002
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负责人:Sharon Stephenson
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依托单位:
国内基金
海外基金
基于新型co-Neutron-Encoding技术对蛋白质精氨酸二甲基化修饰进行质谱精准鉴定研究
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批准号:21675006
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项目类别:面上项目
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资助金额:65.0万元
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批准年份:2016
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负责人:贾辰熙
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依托单位: