Acquisition of X-Ray Flourescence Instrumentation for Archaeological, Geological, and Environmental Research and Training

小行星9601715 这笔赠款提供了111，126美元，作为购买X射线显微荧光（XRMF）光谱仪的部分费用。 该仪器与能量色散XRF相当，但具有非常窄的准直X射线束，可以以相对较高的空间分辨率（约30微米）对地质和考古样品进行非破坏性元素分析。 虽然这种仪器在许多功能上也与电子探针（EMP）相当，但XRMF可以处理更大的样品，并且几乎不需要样品制备，使得XRMF分析相对简单易学，因此适合本科生参与。 该仪器将用于美国这个最大的西班牙裔多数机构的各种跨学科研究课题，包括对稀有考古文物（如陶器碎片和骨头）进行非破坏性成分分析，作为源材料位置的指标，从而确定古文明的定居模式和饮食习惯，分析生长中的带状珊瑚中的Sr/Ca比值作为古海面温度的替代物，并分析环境研究中植物组织中的有毒金属。 ***

9601715 Pingitore This grant provides $111,126 as partial support of the costs of acquiring an X-ray microfluorescence (XRMF) spectrometer. This instrument is comparable to an energy dispersive XRF but has a very narrow collimated X-ray beam which allows non- destructive elemental analyses of geological and archaeological samples at relatively high spatial resolutions (~ 30 microns). Although this instrument is also comparable to an electron microprobe (EMP) in many of its capabilities, the XRMF can handle much larger samples and little to no sample preparation is required making XRMF analyses relatively simple to learn and therefore amenable to undergraduate student involvement. This instrument will be used for a variety of interdisciplinary research topics at this largest Hispanic-majority institution in the U.S. including, non-destructive compositional analyses of rare archaeological artifacts such as pottery shards and bone as indicators of source material locations and thus settlement patterns and dietary habits of ancient civilizations, analyses of the Sr/Ca ratio in growth banded corals as proxies for paleo sea surface temperatures and the analyses of plant tissues for toxic metals in environmental studies. ***