Moghaddam K Kamali, Taheri T, Ayubian M
Nuclear Research Center (NRC), Atomic Energy Organization of Iran (AEOI), P.O. Box 11365-8486, Tehran, Iran.
Appl Radiat Isot. 2008 Jan;66(1):39-43. doi: 10.1016/j.apradiso.2007.07.011. Epub 2007 Jul 25.
In this paper we report a study of the periodic variation of bone tissue humidity immediately after death using both neutron and X-ray radiography techniques. After death, bone tissue experiences sequential change over time. This change consists of organic and inorganic phase variations of the bone structure, as well as gradual reduction of the bone's water content. These variations are investigated by periodically imaging dead bone using X-ray and neutron radiography. Chemical separation techniques such as calcification and decalcification were used to separate the organic and inorganic phases of the bone. Comparison between X-ray and neutron radiographs of bone following phase separation can be potentially used to investigate the bone disease or to determine a cause of death. In our experiments, we use adult rat femur bones, and the interpretations of these results are presented based on our understanding of bone structure and images produced by neutron and X-ray photon interactions.
在本文中，我们报告了一项使用中子和X射线成像技术对死后即刻骨组织湿度的周期性变化进行的研究。死后，骨组织会随时间经历一系列变化。这种变化包括骨结构的有机和无机相变化，以及骨含水量的逐渐减少。通过使用X射线和中子成像对死骨进行定期成像来研究这些变化。采用钙化和脱钙等化学分离技术来分离骨的有机和无机相。相分离后骨的X射线和中子射线照片之间的比较有可能用于研究骨疾病或确定死因。在我们的实验中，我们使用成年大鼠的股骨，并根据我们对骨结构以及中子和X射线光子相互作用产生的图像的理解来呈现这些结果的解读。
