Acquisition of 14C and 3H counting equipment to support hydrologic, tectonic, and paleoseismic studies at Brigham Young

0111517纳尔逊这笔赠款提供了部分支持的费用，获得两个液体闪烁计数器和苯合成系统[样品制备]的同位素研究在杨百翰大学[杨百翰大学]。 PI，斯蒂芬纳尔逊，是地质系的副教授。 他和他的同事在部门，艾伦马约，罗恩哈里斯和马修Mabey，他们的学生和合作者将使用这个设施，支持水文，古气候和构造研究。 除NSF外，杨百翰大学还分担了该系统40%的成本。 计数器和样品制备设施将设在一个实验室内，该实验室已配备真空管线和Finnigan Deltaplus同位素比质谱仪，用于稳定同位素分析。这些计数器将主要用于测量水中的14C和3H活性以及有机物和碳酸盐物质中的14C活性。 将购置一个低放射性物质计数器和一个超低放射性物质计数器，以便进行常规计数和对低放射性物质进行计数。 必要时，将建造电解池以允许3H富集。 在该设施进行的大部分工作将支持地下水系统的研究，古气候研究，估计构造抬升速率，以及杨百翰大学地质学家及其合作者的断层滑动速率调查。 杨百翰大学的其他部门为该设施提供了大量支持，预计该设施将允许其他部门的教师和学生扩大和增强他们的研究能力。 该设施将是犹他州独有的，预计将支持与犹他州和附近各州的同事进行更多的地球科学合作研究。

0111517NelsonThis grant provides partial support for the cost of acquiring two liquid scintillation counters and a benzene synthesis system [sample preparation] for isotopic studies at Brigham Young University [BYU]. The PI, Stephen Nelson, is an Associate Professor in the Department of Geology. He and his colleagues in the department, Alan Mayo, Ron Harris, and Matthew Mabey, their students and collaborators will use this facility in support of hydrology, paleoclimate, and tectonic studies. In addition to NSF, BYU is sharing 40% of the cost for this system. The counters and sample preparation facilities will be housed in a laboratory that already contains vacuum lines and a Finnigan Deltaplus isotope ratio mass spectrometer for stable isotope analysis. These counters will be used primarily to make measurements of 14C and 3H activity in water and 14C activity in organic matter and carbonate materials. One low level and one ultra low level counter will be acquired to facilitate both routine counting as well as counting of low activity materials. Electrolysis cells will be constructed to permit 3H enrichment where necessary. A majority of the work conducted in this facility will support studies of ground water systems, paleoclimate studies, estimates tectonic uplift rates, and fault slip rate investigations by BYU geologists and their collaborators. Other departments at BYU provided substantial support for the facility, and it is anticipated that this facility will permit faculty and students from other departments to expand and augment their research capabilities. The facility will be unique to Utah and it is expected to support additional collaborative studies in the geosciences with colleagues in Utah and nearby states.***