ArticleJournal of synchrotron radiation2017
Simulated sample heating from a nanofocused X-ray beam.
Article in Journal of synchrotron radiation, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- X-ray fluorescence microscopy exposure estimates using a single excitation energy.Journal of synchrotron radiation · 2026Article
- Volume electron microscopy.Nature reviews. Methods primers · 2022Article
- Beam and sample movement compensation for robust spectro-microscopy measurements on a hard X-ray nanoprobe.Journal of synchrotron radiation · 2021Article
- Beam heating from a fourth-generation synchrotron source.Journal of synchrotron radiation · 2021Article
- Nanoscale imaging of shale fragments with coherent X-ray diffraction.Journal of applied crystallography · 2020Article
- Hot electrons in a nanowire hard X-ray detector.Nature communications · 2020Article
- Beam damage of single semiconductor nanowires during X-ray nanobeam diffraction experiments.Journal of synchrotron radiation · 2020Article
- A design of resonant inelastic X-ray scattering (RIXS) spectrometer for spatial- and time-resolved spectroscopy.Journal of synchrotron radiation · 2020Article
- Nanoscale mapping of carrier collection in single nanowire solar cells using X-ray beam induced current.Journal of synchrotron radiation · 2019Article
- Preservation of Bone Tissue Integrity with Temperature Control for In Situ SR-MicroCT Experiments.Materials (Basel, Switzerland) · 2018Article
- Recovery of Degraded-Beyond-Recognition 19Scientific reports · 2018Article
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2 authors.
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Abstract
Recent developments in synchrotron brilliance and X-ray optics are pushing the flux density in nanofocusing experiments to unprecedented levels, which increases the risk of different types of radiation damage. The effect of X-ray induced sample heating has been investigated using time-resolved and steady-state three-dimensional finite-element modelling of representative nanostructures. Simulations of a semiconductor nanowire indicate that the heat generated by X-ray absorption is efficiently transported within the nanowire, and that the temperature becomes homogeneous after about 5 ns. The most important channel for heat loss is conduction to the substrate, where the heat transfer coefficient and the interfacial area are limiting the heat transport. While convective heat transfer to air is significant, the thermal radiation is negligible. The steady-state average temperature in the nanowire is 8 K above room temperature at the reference parameters. In the absence of heat transfer to the substrate, the temperature increase at the same flux reaches 55 K in air and far beyond the melting temperature in vacuum. Reducing the size of the X-ray focus at constant flux only increases the maximum temperature marginally. These results suggest that the key strategy for reducing the X-ray induced heating is to improve the heat transfer to the surrounding.
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