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Radiation-induced melting in coherent X-ray diffractive imaging at the nanoscale
Coherent X-ray diffraction techniques play an increasingly significant role in the imaging of nanoscale structures, ranging from metallic and semiconductor to biological objects. In material science, X-rays are usually considered to be of a low-destructive nature, but under certain conditions they c...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3286865/ https://www.ncbi.nlm.nih.gov/pubmed/21685675 http://dx.doi.org/10.1107/S0909049511016335 |
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author | Ponomarenko, O. Nikulin, A. Y. Moser, H. O. Yang, P. Sakata, O. |
author_facet | Ponomarenko, O. Nikulin, A. Y. Moser, H. O. Yang, P. Sakata, O. |
author_sort | Ponomarenko, O. |
collection | PubMed |
description | Coherent X-ray diffraction techniques play an increasingly significant role in the imaging of nanoscale structures, ranging from metallic and semiconductor to biological objects. In material science, X-rays are usually considered to be of a low-destructive nature, but under certain conditions they can cause significant radiation damage and heat loading on the samples. The qualitative literature data concerning the tolerance of nanostructured samples to synchrotron radiation in coherent diffraction imaging experiments are scarce. In this work the experimental evidence of a complete destruction of polymer and gold nanosamples by the synchrotron beam is reported in the case of imaging at 1–10 nm spatial resolution. Numerical simulations based on a heat-transfer model demonstrate the high sensitivity of temperature distribution in samples to macroscopic experimental parameters such as the conduction properties of materials, radiation heat transfer and convection. However, for realistic experimental conditions the calculated rates of temperature rise alone cannot explain the melting transitions observed in the nanosamples. Comparison of these results with the literature data allows a specific scenario of the sample destruction in each particular case to be presented, and a strategy for damage reduction to be proposed. |
format | Online Article Text |
id | pubmed-3286865 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | International Union of Crystallography |
record_format | MEDLINE/PubMed |
spelling | pubmed-32868652012-02-28 Radiation-induced melting in coherent X-ray diffractive imaging at the nanoscale Ponomarenko, O. Nikulin, A. Y. Moser, H. O. Yang, P. Sakata, O. J Synchrotron Radiat Research Papers Coherent X-ray diffraction techniques play an increasingly significant role in the imaging of nanoscale structures, ranging from metallic and semiconductor to biological objects. In material science, X-rays are usually considered to be of a low-destructive nature, but under certain conditions they can cause significant radiation damage and heat loading on the samples. The qualitative literature data concerning the tolerance of nanostructured samples to synchrotron radiation in coherent diffraction imaging experiments are scarce. In this work the experimental evidence of a complete destruction of polymer and gold nanosamples by the synchrotron beam is reported in the case of imaging at 1–10 nm spatial resolution. Numerical simulations based on a heat-transfer model demonstrate the high sensitivity of temperature distribution in samples to macroscopic experimental parameters such as the conduction properties of materials, radiation heat transfer and convection. However, for realistic experimental conditions the calculated rates of temperature rise alone cannot explain the melting transitions observed in the nanosamples. Comparison of these results with the literature data allows a specific scenario of the sample destruction in each particular case to be presented, and a strategy for damage reduction to be proposed. International Union of Crystallography 2011-07-01 2011-05-26 /pmc/articles/PMC3286865/ /pubmed/21685675 http://dx.doi.org/10.1107/S0909049511016335 Text en © O. Ponomarenko et al. 2011 http://creativecommons.org/licenses/by/2.0/uk/ This is an open-access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited. |
spellingShingle | Research Papers Ponomarenko, O. Nikulin, A. Y. Moser, H. O. Yang, P. Sakata, O. Radiation-induced melting in coherent X-ray diffractive imaging at the nanoscale |
title | Radiation-induced melting in coherent X-ray diffractive imaging at the nanoscale |
title_full | Radiation-induced melting in coherent X-ray diffractive imaging at the nanoscale |
title_fullStr | Radiation-induced melting in coherent X-ray diffractive imaging at the nanoscale |
title_full_unstemmed | Radiation-induced melting in coherent X-ray diffractive imaging at the nanoscale |
title_short | Radiation-induced melting in coherent X-ray diffractive imaging at the nanoscale |
title_sort | radiation-induced melting in coherent x-ray diffractive imaging at the nanoscale |
topic | Research Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3286865/ https://www.ncbi.nlm.nih.gov/pubmed/21685675 http://dx.doi.org/10.1107/S0909049511016335 |
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