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 1 corresp first-author Email: zhupp@mail.ihep.ac.cn. Email: zhupp@mail.ihep.ac.cn. zhupp@mail.ihep.ac.cn. 1 1 2 1 1 1 1 1 1 1 Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China; Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China; Electronic Institute of Dalian University of Technology, Dalian 116023, China Electronic Institute of Dalian University of Technology, Dalian 116023, China 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. Diffraction enhanced imaging Refraction computed tomography Synchrotron radiation References Ando M ., Hosoya S . , in Proceeding of 6th International Conference on X-ray Optics and Microanalysis (edited by Shinoda G ., Kohra K ., Ichinokawa T . ) University of Tokyo Press , Tokyo , 1972 : 63 . Davis T.J ., Gao D ., Gureyev T.E. , et al . Nature , 1995 , 373 : 595 . Nature Snigirev A ., Snigireva I ., Kohn V. , et al . Rev. Sci. Instrum . 1995 , 66 : 5486 . Rev. Sci. Instrum Wilkins S. W ., Gureyev T. Ei ., Gao D. , et al . Nature , 1996 , 384 : 335 . Nature Margaritondo G ., Tromba G ., J. Appl. Phys . 1999 , 85 : 3406 J. Appl. Phys Chapman L.D ., Thomlinson W.C. , Johnston R.E. , et al . Phys. Med. Biol . 1997 , 42 : 2015 . Phys. Med. Biol Hwu Y ., Hsieh H ., Lu M. et al . J. Appl. Phys . 1999 , 86 : 4613 . J. Appl. Phys Oltulu O ., Zhong Z ., Hasnah M. , et al . J.Phys.D: Appl. Phys . 2003 , 36 : 2152 J.Phys.D: Appl. Phys Kiss1 M ., Sayers1 D ., Zhong Z ., Phys. Med. Biol . 2003 , 48 : 325 Phys. Med. Biol James R.W . The optical principles of the diffraction of X-rays , Ox Bow Press , 1982 . The optical principles of the diffraction of X-rays Zhu P ., Yuan Q ., Huang W. , et al . J. Phys. D Appl. Phys , 2006 , 39 : 4142 . J. Phys. D Appl. Phys Zhu P ., Wang J ., Yuan Q. , et al . Proc. 8th Int. Conf. X-ray Microscopy (invited talk), IPAP Conf. Series 7 , 407 - 410 ( 2006 ). Zhu Peiping , Yuan Qingxi , Huang Wanxia , et al . Physica Sinica (in Chinese) , 2006 , 55 : 1089 . Physica Sinica (in Chinese) Macovski A ., Medical Imaging Systems , Prentice-Hall , Englewood Cliffs, New Jersey , 1983 . Medical Imaging Systems Momose A ., Takeda T ., Itai Y. et al . Nature Medicine , 1996 , 2 : 473 . Nature Medicine Cloetens P ., Ludwig W ., Baruchel J ., Appl. Phys. Lett ., 1999 , 75 : 2912 . Appl. Phys. Lett Dilmanian F. A ., Zhong Z ., Ren B. , et al . Phys. Med. Biol . 2000 , 45 : 933 . Phys. Med. Biol Fiedler S ., Bravin A ., Keyrilainen J. , et al . Phys. Med. Biol . 2004 , 49 : 175 . Phys. Med. Biol Msksimenko A ., Ando M ., Hiroshi S. et al . Appl. Phys. Lett . 2005 , 86 : 124105 . Appl. Phys. Lett Yuan Q ., Wang J ., Zhu P. , et al . High Energy Phys. Nucl. Phys. (in Chinese) , 2005 , 29 : 1023 . High Energy Phys. Nucl. Phys. (in Chinese) Born M ., Wolf E . , The Principle of optics , Pergamon Press , 1975 . The Principle of optics Zhu P ., Wang J ., Yuan Q. , et al . Appl. Phys. Lett . 2005 , 87 : 264101 . Appl. Phys. Lett Wang J ., Zhu P ., Yuan Q. , et al . Phys. Med. Biol . 2006 , 51 : 3391 - 3396 . Phys. Med. Biol 10.1016/S1001-8042(07)60004-9 O434.14,TH774 Supported by the National Outstanding Youth Fund (10125523 to Z.Wu.) , the Key Important Nano-Research Project (90206032) , the Key Important Project of the National Natural Science Foundation of China (10490190, 10490194) and by Knowledge Innovation Fund of IHEP. 2006-12-20 2021-01-19 2006 Nuclear Science and Techniques 06 17