• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>15th world conference on non-destructive testing >CCD Based High Energy Large Field X-ray Digital Radiographic System
【24h】

CCD Based High Energy Large Field X-ray Digital Radiographic System

机译：基于CCD的高能大视野X射线数字射线照相系统

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

For high energy radiography and radioscopy of large objects, we usually usesystems based on 2D scintillating screen and silicon intensified target (SIT)video camera. The SIT camera disadvantages and the imaging field size limitations(about 0.12 m2) leads us to develop a new system based on a high sensitivity CCDcamera optically coupled to a large field (about 0.5 m~2) Gd_2O_2 S:Tb converterscreen.In this communication, the design of the camera will be presented together withthe constraints due to the large magnification factor required and to thesensitivity of the CCD camera to scattered radiation. The performance of thesystem will be illustrated on experimental results. This system has a field ofview of 0.48m~2 and a pixel pitch of 0.64mm. The geometric resolution obtained at8MeV is close to 0.5 lp/mm and the sensitivity is close to 2% through 30cm ofconcrete. The maximum speed of acquisition is 9 images/sec. Application of thishigh energy camera in the field of nuclear waste are presented.
机译：对于大型物体的高能射线照相和放射线照相术，我们通常使用 基于2D闪烁屏幕和硅增强靶（SIT）的系统 摄像机。 SIT相机的缺点和成像场大小的局限性 （约0.12平方米）使我们开发了基于高灵敏度CCD的新系统 摄像机光耦合到大视野（约0.5 m〜2）的Gd_2O_2 S：Tb转换器 屏幕。 在本次交流中，相机的设计将与 由于所需的大放大倍数和 CCD相机对散射辐射的灵敏度。的表现 实验结果将说明该系统。该系统具有以下领域 视角为0.48m〜2，像素间距为0.64mm。在处获得的几何分辨率 8MeV接近0.5 lp / mm，并且在30cm的范围内灵敏度接近2％ 具体的。最高采集速度为9张图像/秒。这个的应用 介绍了核废料领域的高能相机。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号