X射线CT技术体积重构法表征异形泡沫金密度  

Density characterization of gold foam sample with abnormal surface using X-ray CT technology

作　　者：黎维华[1] 王远[2,3] 谭秀兰[1] 杨波[1] 李敬[2,3] 陈云斌[2,3] 张成鑫[2,3] 刘清华[2,3] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900 [2]中国工程物理研究院应用电子学研究所,四川绵阳621900 [3]国家X射线数字化成像仪器中心,四川绵阳621900

出　　处：《强激光与粒子束》2015年第3期181-185,共5页High Power Laser and Particle Beams

基　　金：国家高技术发展计划项目

摘　　要：采用X射线CT(XCT)技术进行体积重构的研究方法,解决了异形泡沫金密度表征中体积难以精确测量的问题,密度表征结果为978.68mg/cm3。同时,为了研究该方法的有效性与不确定度,开展了XCT体积重构法与排水法对具有不规则外形橡皮泥样品的密度表征对比实验,结果表明两者之间的相对误差小于1%。Gold foam is one of the most important materials used in ICF experimental research,while it is hard to precisely measure the volume of the gold foam in its density characterization.Here we reported one method of volume reconstruction by using X ray CT technology.By using this method,the density of our prepared gold foam with abnormal surface is determined to be978.68mg/cm^-3.To validate the accuracy of this method,comparison experiments between this method and a specific gravity bottle method have been performed by using plasticine samples.The results show that the relative error value is less than 1%.

关 键 词：异形 金泡沫 密度表征 CT 体积重构 

分 类 号：O434.1[机械工程—光学工程] O616[理学—光学]