MRI: Acquisition of a gamma-ray spectrometer for surface-process and ocean research

MRI:购买伽马射线能谱仪用于表面过程和海洋研究

基本信息

项目摘要

Maintenance of soil is critically important for sustaining the world's growing population. Eroded surface sediment can also be a major pollutant degrading aquatic ecosystems worldwide through light attenuation and heavy-metal contamination. This instrumentation grant will add to sediment mobility research through the measurement of decay products from naturally produced radioactive isotopes adsorbed to sediment. This instrument will help build a foundation for efforts to (1) create new datasets, (2) enhance infrastructure for interdisciplinary, collaborative research, and (3) train a diverse workforce capable of tackling society's environmental challenges through student training. Education impacts of this grant include the incorporation of the instrument into a new course and undergraduate student research projects through the NSF-funded Research Experience for Undergraduates program at Scripps Institution of Oceanography, UC San Diego. Measurement of fallout radionuclides provide a means to measure rates of surficial processes. Specifically, the short-lived beryllium nuclide 7Be can be used to understand the chemically similar 10Be radionuclide commonly used in surface-process research but typically only measured by more expensive accelerator mass spectrometry. Detection of the abundant short-lived beryllium radionuclide (7Be) via acquisition of a Canberra/Mirion U-Style Cryostat Small Anode Germanium (SAGe) Well Detector System will facilitate research into the mobility of cosmogenic 10Be and the adsorption behavior of 9Be, which is a toxic pollutant. The acquisition of this instrument will drive scientific research (some already NSF-funded) and innovation and cultivate interdisciplinary collaborations among researchers studying low-temperature geochemistry, marine geoscience, ecology, archaeology, and Earth-surface dynamics.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
保持土壤对于维持世界不断增长的人口至关重要。 受侵蚀的表层沉积物也可能是一种主要污染物,通过光衰减和重金属污染,使全世界的水生生态系统退化。 这一仪器赠款将通过测量吸附在沉积物上的自然产生的放射性同位素的衰变产物来增加沉积物流动性研究。该工具将有助于为以下工作奠定基础:(1)创建新的数据集,(2)加强跨学科合作研究的基础设施,(3)通过学生培训培养能够应对社会环境挑战的多元化劳动力。该补助金的教育影响包括将仪器纳入新课程和本科生研究项目,通过NSF资助的Scripps海洋学研究所的本科生研究经验计划,加州大学圣地亚哥分校。沉降物放射性核素的测量提供了一种测量地表沉降过程速率的手段。具体来说,短寿命铍核素7 Be可以用来理解化学上类似的10 Be放射性核素,通常用于表面过程研究,但通常只能通过更昂贵的加速器质谱法测量。 通过获得堪培拉/Mirion U型低温恒温器小阳极锗(SAGe)阱探测器系统来探测丰富的短寿命铍放射性核素(7 Be),将有助于研究宇宙成因10 Be的迁移性和有毒污染物9 Be的吸附行为。该仪器的获得将推动科学研究(其中一些已经获得NSF资助)和创新,并培养低温地球化学、海洋地球科学、生态学、考古学和地球表面动力学研究人员之间的跨学科合作。该奖项反映了NSF的法定使命,并通过使用基金会的知识价值和更广泛的影响审查标准进行评估,被认为值得支持。

项目成果

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Jane Willenbring其他文献

Jane Willenbring的其他文献

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{{ truncateString('Jane Willenbring', 18)}}的其他基金

Collaborative Research: From rock to regolith to rivers: weathering, grain size, and controls on soil production and fluvial incision
合作研究:从岩石到风化层再到河流:风化、粒度以及对土壤生产和河流切割的控制
  • 批准号:
    2104111
  • 财政年份:
    2020
  • 资助金额:
    $ 11.89万
  • 项目类别:
    Continuing Grant
EAGER SitS: Soil Soundscapes from Seismic Arrays
EAGER SitS:地震阵列的土壤声景
  • 批准号:
    2102117
  • 财政年份:
    2020
  • 资助金额:
    $ 11.89万
  • 项目类别:
    Standard Grant
CAREER: Retention and Mobility of Beryllium in Soils and Sedimentary Environments
职业:铍在土壤和沉积环境中的保留和移动性
  • 批准号:
    2103501
  • 财政年份:
    2020
  • 资助金额:
    $ 11.89万
  • 项目类别:
    Standard Grant
Collaborative Research: From rock to regolith to rivers: weathering, grain size, and controls on soil production and fluvial incision
合作研究:从岩石到风化层再到河流:风化、粒度以及对土壤生产和河流切割的控制
  • 批准号:
    1848637
  • 财政年份:
    2019
  • 资助金额:
    $ 11.89万
  • 项目类别:
    Continuing Grant
EAGER SitS: Soil Soundscapes from Seismic Arrays
EAGER SitS:地震阵列的土壤声景
  • 批准号:
    1841619
  • 财政年份:
    2018
  • 资助金额:
    $ 11.89万
  • 项目类别:
    Standard Grant
CAREER: Retention and Mobility of Beryllium in Soils and Sedimentary Environments
职业:铍在土壤和沉积环境中的保留和移动性
  • 批准号:
    1554134
  • 财政年份:
    2016
  • 资助金额:
    $ 11.89万
  • 项目类别:
    Standard Grant
COLLABORATIVE RESEARCH: Central Anatolian Tectonics (CD-CAT): Surface to mantle dynamics during collision to escape
合作研究:安纳托利亚中部构造(CD-CAT):碰撞逃逸过程中的地表到地幔动力学
  • 批准号:
    1651237
  • 财政年份:
    2016
  • 资助金额:
    $ 11.89万
  • 项目类别:
    Continuing Grant
CAREER: Retention and Mobility of Beryllium in Soils and Sedimentary Environments
职业:铍在土壤和沉积环境中的保留和移动性
  • 批准号:
    1651243
  • 财政年份:
    2016
  • 资助金额:
    $ 11.89万
  • 项目类别:
    Standard Grant
Collaborative Research: The legacy of transience: Understanding dynamic landscape adjustment following mountain uplift in two CZO field areas
合作研究:短暂的遗产:了解两个 CZO 野外区域山体抬升后的动态景观调整
  • 批准号:
    1651242
  • 财政年份:
    2016
  • 资助金额:
    $ 11.89万
  • 项目类别:
    Standard Grant
Collaborative Research: The legacy of transience: Understanding dynamic landscape adjustment following mountain uplift in two CZO field areas
合作研究:短暂的遗产:了解两个 CZO 野外区域山体抬升后的动态景观调整
  • 批准号:
    1349261
  • 财政年份:
    2014
  • 资助金额:
    $ 11.89万
  • 项目类别:
    Standard Grant

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采购低本底高分辨率伽马能谱仪用于研究和本科生培训
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了解胸腺获取 γ/δ T 细胞效应功能
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多模式数据采集 (MDA) 核心
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获取用于 600 MHz NMR 波谱仪的 CryoProbe
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