کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1850104 | 1528247 | 2006 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Principle of diffraction enhanced imaging (DEI) and computed tomography based on DEI method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Principle of diffraction enhanced imaging (DEI) and computed tomography based on DEI method Principle of diffraction enhanced imaging (DEI) and computed tomography based on DEI method](/preview/png/1850104.png)
چکیده انگلیسی
In the first part of this article a more general DEI equation was derived using simple concepts. Not only does the new DEI equation explain all the problems that can be done by the DEI equation proposed by Chapman, but also explains the problem that can not be explained with the old DEI equation, such as the noise background caused by the small angle scattering reflected by the analyzer. In the second part, a DEI-PI-CT formula has been proposed and the contour contrast caused by the extinction of refraction beam has been qualitatively explained, and then based on the work of Ando's group two formulae of refraction CT with DEI method has been proposed. Combining one refraction CT formula proposed by Dilmanian with the two refraction CT formulae proposed by us, the whole framework of CT algorithm can be made to reconstruct three components of the gradient of refractive index.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Science and Techniques - Volume 17, Issue 6, December 2006, Pages 342-353
Journal: Nuclear Science and Techniques - Volume 17, Issue 6, December 2006, Pages 342-353
نویسندگان
ZHU Pei-Ping, HUANG Wan-Xia, YUAN Qing-Xi, YU Jian, WANG Jun-Yue, ZHENG Xin, SHU Hang, CHEN Bo, LIU Yi-Jin, LI En-Rong, WU Zi-Yu,