Mikroskopsystem zur Spaltspuren-Analytik

裂变径迹分析在地球科学中被广泛应用，其中包括量化上地壳的侵蚀和挖掘，断层运动的时序划分，大规模构造过程的定年，在源-汇研究中确定沉积物的物源，以及限制沉积盆地的热演化，通常与油气勘探有关。不来梅大学“极地地球动力学”部分以裂变径迹分析为核心专业知识，并在过去几十年中成功地运行了一个裂变径迹实验室。实验室目前的设备由两个阶段的系统组成，这些系统可以追溯到20世纪90年代。我们的目标是用两个最先进的阶段系统取代它们，允许（半）自动化裂变轨迹分析。（半）自动化和数字图像分析将使我们能够(i)促进和加快数据生成，（ii）改进计数统计，无论是在年代颗粒的数量和测量长度的数量方面，（iii）提供分析颗粒的数字记录，这反过来使我们能够从外部探测器方法改为微破坏性激光烧蚀裂变径迹分析（iv）提高博士生和其他早期研究人员的培训机会。(v)支持记录、归档和交换用于热历史重建的基本和原始数据。

Fission track analysis is widely used in Geosciences and is applied, amongst, others, for quantifying erosion and exhumation of the upper crust, bracketing timing of fault movements, dating large-scale tectonic processes, determining sediments provenance in source-to-sink studies, and constraining thermal evolutions of sedimentary basins, often in association with hydrocarbon exploration. The section "Geodynamics of Polar Regions", University of Bremen, uses fission track analysis as its core expertise, and has successfully run a fission track laboratory for the last decades. The current equipment of the laboratory consists of two stage systems dating from the 1990´s. We aim to replace them by two state-of-the-art stage systems allowing for (semi-)automated fission track analysis. (Semi-)automation and digital image analysis will enable us to (i) facilitate and speed up data generation, (ii) improve counting statistics, both in terms of number of dated grains and number of measured lengths, (iii) provide digital records of analysed grains, which in turn enables us to change from the External Detector Method to the micro-destructive Laser-Ablation Fission Track Analysis (iv) improve training opportunities for PhD students and other early-stage researchers, (v) supports documentation, archiving, and exchange of basic and raw data used for thermal history reconstructions.