تقرير
Gas gun shock experiments with single-pulse x-ray phase contrast imaging and diffraction at the Advanced Photon Source
| العنوان: | Gas gun shock experiments with single-pulse x-ray phase contrast imaging and diffraction at the Advanced Photon Source |
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| المؤلفون: | Luo, S. N., Jensen, B. J., Hooks, D. E., Fezzaa, K., Ramos, K. J., Yeager, J. D., Kwiatkowski, K., Shimada, T. |
| سنة النشر: | 2012 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Condensed Matter - Other Condensed Matter, Physics - Instrumentation and Detectors |
| الوصف: | The highly transient nature of shock loading and pronounced microstructure effects on dynamic materials response call for {\it in situ}, temporally and spatially resolved, x-ray-based diagnostics. Third-generation synchrotron x-ray sources are advantageous for x-ray phase contrast imaging (PCI) and diffraction under dynamic loading, due to their high photon energy, high photon fluxes, high coherency, and high pulse repetition rates. The feasibility of bulk-scale gas gun shock experiments with dynamic x-ray PCI and diffraction measurements was investigated at the beamline 32ID-B of the Advanced Photon Source. The x-ray beam characteristics, experimental setup, x-ray diagnostics, and static and dynamic test results are described. We demonstrate ultrafast, multiframe, single-pulse PCI measurements with unprecedented temporal ($<$100 ps) and spatial ($\sim$2 $\mu$m) resolutions for bulk-scale shock experiments, as well as single-pulse dynamic Laue diffraction. The results not only substantiate the potential of synchrotron-based experiments for addressing a variety of shock physics problems, but also allow us to identify the technical challenges related to image detection, x-ray source, and dynamic loading. |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1063/1.4733704 |
| URL الوصول: | http://arxiv.org/abs/1204.6071 |
| رقم الأكسشن: | edsarx.1204.6071 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1063/1.4733704 |
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