Australian Centre for Microscopy and Microanalysis, The University of Sydney, NSW 2006, Australia.
Ultramicroscopy. 2011 May;111(6):648-51. doi: 10.1016/j.ultramic.2010.12.032. Epub 2010 Dec 29.
This paper details the effects of systematic changes to the experimental parameters for atom probe microscopy of microalloyed steels. We have used assessments of the signal-to-noise ratio (SNR), compositional measurements and field desorption images to establish the optimal instrumental parameters. These corresponded to probing at the lowest possible temperature (down to 20K) with the highest possible pulse fraction (up to 30%). A steel containing a fine dispersion of solute atom clusters was used as an archetype to demonstrate the importance of running the atom probe at optimum conditions.
本文详细介绍了系统改变微合金钢原子探针显微镜实验参数的影响。我们使用信噪比（SNR）评估、成分测量和场解吸图像来确定最佳仪器参数。这些参数对应于尽可能低的温度（低至 20K）和尽可能高的脉冲分数（高达 30%）下的探测。以含有溶质原子团精细分散的钢作为原型，证明了在最佳条件下运行原子探针的重要性。
