...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE Transactions on Medical Imaging >Study of the resolution performance of an array of discrete detectors with independent readouts for positron emission tomography
【24h】

Study of the resolution performance of an array of discrete detectors with independent readouts for positron emission tomography

机译：研究具有独立读数的正电子发射断层扫描的离散探测器阵列的分辨率性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The intrinsic resolution characteristics of an original detection system for very high resolution positron emission tomography (PET) based on arrays of small discrete crystals individually coupled to solid state photodetectors are evaluated. The results obtained demonstrate the excellent three-dimensional (3-D) resolving capability of a detection system based on the EG&G/RCA C30994 detector module. The analysis of the various components contributing to the resolution has shown that the geometry of the detector and the intercrystal scattering both contribute to limit the achievable intrinsic resolution. The geometrical component is dominant off the central region of the camera field as a result of intercrystal penetration when the array is irradiated at an angle. Intercrystal scattering must be properly rejected to achieve the intrinsic resolution determined by the detector geometry.
机译：评价了基于单独耦合到固态光电探测器的小型离散晶体阵列的超高分辨率正电子发射断层扫描（PET）原始检测系统的固有分辨率特性。获得的结果证明了基于EG＆G / RCA C30994检测器模块的检测系统出色的三维（3-D）解析能力。对有助于分辨率的各种成分的分析表明，检测器的几何形状和晶体间散射都有助于限制可实现的固有分辨率。当以一定角度照射阵列时，由于晶间穿透，几何成分在相机场的中心区域以外占主导地位。必须适当地拒绝晶体间散射，以达到由探测器几何形状确定的固有分辨率。

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