Standardizing Spatial Reconstruction Parameters for the Atom Probe Analysis of Common Minerals
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Standardizing Spatial Reconstruction Parameters for the Atom Probe Analysis of Common Minerals. / Fougerouse, Denis; Saxey, David W.; Rickard, William D. A.; Reddy, Steven M.; Verberne, Rick.
In: Microscopy and Microanalysis, Vol. 28, No. 4, 2022, p. 1221-1230.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Standardizing Spatial Reconstruction Parameters for the Atom Probe Analysis of Common Minerals
AU - Fougerouse, Denis
AU - Saxey, David W.
AU - Rickard, William D. A.
AU - Reddy, Steven M.
AU - Verberne, Rick
N1 - Publisher Copyright: © The Author(s), 2021. Published by Cambridge University Press on behalf of the Microscopy Society of America.
PY - 2022
Y1 - 2022
N2 - Well-defined reconstruction parameters are essential to quantify the size, shape, and distribution of nanoscale features in atom probe tomography (APT) datasets. However, the reconstruction parameters of many minerals are difficult to estimate because intrinsic spatial markers, such as crystallographic planes, are not usually present within the datasets themselves. Using transmission and/or scanning electron microscopy imaging of needle-shaped specimens before and after atom probe analysis, we test various approaches to provide best-fit reconstruction parameters for voltage-based APT reconstructions. The results demonstrate that the length measurement of evaporated material, constrained by overlaying pre- and post-analysis images, yields more consistent reconstruction parameters than the measurement of final tip radius. Using this approach, we provide standardized parameters that may be used in APT reconstructions of 11 minerals. The adoption of standardized reconstruction parameters by the geoscience APT community will alleviate potential problems in the measurement of nanoscale features (e.g., clusters and interfaces) caused by the use of inappropriate parameters.
AB - Well-defined reconstruction parameters are essential to quantify the size, shape, and distribution of nanoscale features in atom probe tomography (APT) datasets. However, the reconstruction parameters of many minerals are difficult to estimate because intrinsic spatial markers, such as crystallographic planes, are not usually present within the datasets themselves. Using transmission and/or scanning electron microscopy imaging of needle-shaped specimens before and after atom probe analysis, we test various approaches to provide best-fit reconstruction parameters for voltage-based APT reconstructions. The results demonstrate that the length measurement of evaporated material, constrained by overlaying pre- and post-analysis images, yields more consistent reconstruction parameters than the measurement of final tip radius. Using this approach, we provide standardized parameters that may be used in APT reconstructions of 11 minerals. The adoption of standardized reconstruction parameters by the geoscience APT community will alleviate potential problems in the measurement of nanoscale features (e.g., clusters and interfaces) caused by the use of inappropriate parameters.
KW - atom probe microscopy
KW - correlative microscopy
KW - mineralogy
KW - nanoscale
U2 - 10.1017/S1431927621013714
DO - 10.1017/S1431927621013714
M3 - Journal article
AN - SCOPUS:85120754493
VL - 28
SP - 1221
EP - 1230
JO - Microscopy and Microanalysis
JF - Microscopy and Microanalysis
SN - 1431-9276
IS - 4
ER -
ID: 289959153