Fast Data Acquisition in Heavy Ion CT Using Intensifying Screen-EMCCD Camera System

研究了X射线增强屏-电荷耦合器件（CCD）相机系统在重离子CT（IonCT）技术中快速数据采集的可行性。Weuseda高品质电子倍增CCD（EMCCD）相机，大大缩短了数据采集时间。我们还使用了平行板电离室上游的一个对象来监测的时间变化inheavy离子束强度从同步加速器和执行束强度校正的所有EMCCD图像。我们证明，一个由六个杆组成的电子密度体模，仅在10分钟内就成功地重建了256个投影，相对电子密度分辨率为1%。

We investigated the feasibility of fast data acquisition in heavy ion CT(IonCT) technique with an X-ray intensifying screen-charged coupled device(CCD) camera system. Weuseda high quality Electron Multiplying CCD(EMCCD) camera, which drastically reduced data acquisition time. We also useda parallel-plate ionization chamber upstream of anobject to monitor the time variation inheavy ion beam intensity from a synchrotronaccelerator and to perform beam intensity correction for all EMCCD images. We demonstrated that an electron density phantom consisting of six rods was successfully reconstructed in only 10min for 256 projections with a relative electron density resolution of 1%.