公开(公告)号：EP1941264A2

公开(公告)日：2008-07-09

申请号：EP06815214.9

申请日：2006-09-22

申请人： The University of North Carolina At Chapel Hill

发明人： ZHOU, Otto, Z. ,  LU, Jianping ,  ZHANG, Jian ,  YANG, Guang ,  LEE, Yueh ,  QIU, Qi ,  CHENG, Yuan

IPC分类号： G01N23/04

CPC分类号： A61B6/482 ,  A61B6/025 ,  A61B6/032 ,  A61B6/4028 ,  A61B6/466 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612

摘要： Methods, systems, and computer program products for multiplexing computed tomography are disclosed. According to one aspect, the subject matter described herein can include illuminating an object with a plurality of x-ray beams from a plurality of viewing angles, wherein each x-ray beam has a distinct waveform; detecting the x-ray intensities of the plurality of pulsed x- ray beams as a function of time, and extracting individual projection image data from the detected x-ray intensities based on the distinct waveforms of the x-ray beams for combining the projection image data to generate three- dimensional tomographic image data of the object.

公开(公告)号：EP1627410A2

公开(公告)日：2006-02-22

申请号：EP04775902.2

申请日：2004-04-22

申请人： THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL

发明人： ZHOU, Otto, Z. ,  LU, Jianping ,  LEE, Yueh ,  LIN, Weili ,  CHENG, Yuan ,  ZHANG, Jian

IPC分类号： H01J35/32

CPC分类号： B82Y10/00 ,  A61B6/032 ,  A61B6/4028 ,  A61B6/4085 ,  A61B6/4275 ,  A61B6/482 ,  A61B6/508 ,  A61B6/5235 ,  A61B6/541

摘要： Computed tomography device comprising an x-ray source (100) and an x-ray detecting unit. The x-ray source comprises a cathode (102) with a plurality of individually programmable electron emitting units (104) that each emit an electron (106) upon an application of an electric field, an anode target (108) that emits an x-ray (110) upon impact by the emitted electron, and a collimator (112). Each electron emitting unit includes an electron field emitting material. The electron field emitting material includes a nanostructured material or a plurality of nanotubes or a plurality of nanowires. Computed tomography methods are also provided.