| Original Articles |
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Typical Microstructures of Chinese Medicines with X-Ray Microscopy in Phase Contrast |
| WEI Xun;XIAO Ti-Qiao;LIU Li-Xiang;DU Guo-Hao;CHEN Min;LUO Yu-Yu; XU Hong-Jie |
| Shanghai Institute of Applied Physics, Chinese Academy of Sciences, PO Box 800-204, Shanghai 201800 |
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| Cite this article: |
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WEI Xun, XIAO Ti-Qiao, LIU Li-Xiang et al 2005 Chin. Phys. Lett. 22 2255-2258 |
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Abstract Due to the low absorption contrast of plant tissues, traditional x-ray radiography has not been included in the microscopic techniques used in the identification of traditional Chinese medicines (TCMs). With the development of x-ray phase contrast imaging (XPCI) in recent years, weakly absorbing materials could also be imaged by x-rays. Here we investigate microstructures of TCMs utilizing XPCI based on a nano-focus x-ray tube. The results demonstrated that XPCI is capable of revealing the microstructures of TCMs used as judging criteria in the identification of TCMs. The major advantages of the new method are nondestructivity, no special demand for sample preparation and suitability for thick samples.
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| Keywords:
42.25.Gy
81.70.Fy
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Published: 01 September 2005
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| PACS: |
42.25.Gy
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(Edge and boundary effects; reflection and refraction)
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81.70.Fy
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(Nondestructive testing: optical methods)
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