Marine Sediment Sampling Facility (MARSSAM) Oceanographic Instrumentation: Acquisition of a Seagoing Sediment CT-Scanning System

该提案寻求为俄勒冈州立大学海洋沉积物取样设施（MARSSAM）购买海上计算机断层扫描（CT）扫描系统的资金，该设施支持美国学术研究舰队（ARF）的NSF取心计划。他们提议购买的系统是GeoTek垂直x射线ct扫描仪（VXCT），占地面积小，可以安装在集装箱实验室中，用于部署在许多ARF平台上。扫描仪可以在垂直方向上以350到30微米的分辨率收集岩心的三维图像，岩心的长度可达150厘米，从而可以保存沉积物的水界面。在64微米的分辨率下，可以在40分钟内扫描完整的岩心部分，允许以符合船舶海上沉积物岩心计算机断层扫描仪岩心处理流程的速度收集数据611,799美元更广泛的影响本提案的主要影响是根据提案指南（NSF 19-602）的优点审查标准2。它为科学家提供基础设施支持，以使用该船及其共享使用的仪器来支持他们的国家科学基金会资助的海洋学研究项目（这些项目单独接受国家科学基金会相关研究计划的单独审查）。共享使用仪器的获取、维护和操作允许来自任何美国大学或实验室的nsf资助的研究人员为他们的研究访问工作、校准仪器，降低研究成本，并扩大潜在研究人员的基础。该奖项反映了美国国家科学基金会的法定使命，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。

This proposal seeks funds for acquisition of a seagoing computed tomography (CT)-scanning system for the Oregon State University Marine Sediment Sampling Facility (MARSSAM), which supports NSF coring programs across the United State Academic Research Fleet (ARF). The system they propose to acquire, a GeoTek Vertical X-ray CT-scanner (VXCT) has a small footprint allowing it to be installed in a containerized lab for deployment aboard many of the ARF platforms. The scanner can collect three-dimensional images at resolutions of between 350 and 30 microns for cores of up to 150 cm in length in a vertical orientation, allowing for preservation of the sediment water interface. Full-length core sections can be scanned in as little as 40 minutes at 64-micron resolution, allowing for data collection at a pace that falls within the flow of core processing aboard the shipSeagoing Sediment Core Computed Tomography Scanner $611,799 Broader ImpactsThe principal impact of the present proposal is under Merit Review Criterion 2 of the Proposal Guidelines (NSF 19-602). It provides infrastructure support for scientists to use the vessel and its shared-use instrumentation in support of their NSF-funded oceanographic research projects (which individually undergo separate review by the relevant research program of NSF). The acquisition, maintenance and operation of shared-use instrumentation allows NSF-funded researchers from any US university or lab access to working, calibrated instruments for their research, reducing the cost of that research, and expanding the base of potential researchers.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.