Coded apertures for x-ray scatter imaging

被引：28
|
作者：
Brady, David J. [1 ,2 ]
Marks, Daniel L. [1 ,2 ]
MacCabe, Kenneth P. [1 ,2 ]
O'Sullivan, Joseph A. [3 ,4 ]
机构：
[1] Duke Univ, Fitzpatrick Inst Photon, Durham, NC 27708 USA
[2] Duke Univ, Dept Elect & Comp Engn, Durham, NC 27708 USA
[3] Washington Univ, Dept Radiol, St Louis, MO 63130 USA
[4] Washington Univ, Dept Elect Engn, St Louis, MO 63130 USA
来源：
APPLIED OPTICS | 2013年 / 52卷 / 32期
关键词：
TOMOGRAPHY;
D O I：
10.1364/AO.52.007745
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We examine coding strategies for coded aperture scatter imagers. Scatter imaging enables tomography of compact regions from snapshot measurements. We present coded aperture designs for pencil and fan beam geometries, and compare their singular value spectra with that of the Radon transform and selected volume tomography. We show that under dose constraints scatter imaging improves conditioning over alternative techniques, and that specially designed coded apertures enable snapshot 1D and 2D tomography. (C) 2013 Optical Society of America
引用
收藏
页码：7745 / 7754
页数：10
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