期刊
SCIENTIFIC REPORTS
卷 5, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep13244
关键词
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资金
- STFC [ST/J002062/1]
- EPSRC
- Wellcome Trust through the Medical Engineering Solutions in Osteoarthritis Centre of Excellence
- EPSRC [EP/I014462/1, EP/H00601X/1] Funding Source: UKRI
- STFC [ST/J002062/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [1228442, 1102540, EP/I014462/1, EP/H00601X/1] Funding Source: researchfish
- Science and Technology Facilities Council [ST/J002062/1 John Adams Inst, ST/J002062/1] Funding Source: researchfish
A bright mu m-sized source of hard synchrotron x-rays (critical energy E-crit > 30 keV) based on the betatron oscillations of laser wakefield accelerated electrons has been developed. The potential of this source for medical imaging was demonstrated by performing micro-computed tomography of a human femoral trabecular bone sample, allowing full 3D reconstruction to a resolution below 50 mu m. The use of a 1 cm long wakefield accelerator means that the length of the beamline (excluding the laser) is dominated by the x-ray imaging distances rather than the electron acceleration distances. The source possesses high peak brightness, which allows each image to be recorded with a single exposure and reduces the time required for a full tomographic scan. These properties make this an interesting laboratory source for many tomographic imaging applications.
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