A variant on the geometrical optics approximation in diffraction enhanced tomography

被引:39
作者
Pavlov, KM [1 ]
Kewish, CM [1 ]
Davis, JR [1 ]
Morgan, MJ [1 ]
机构
[1] Monash Univ, Dept Phys, Clayton, Vic 3800, Australia
关键词
D O I
10.1088/0022-3727/34/10A/335
中图分类号
O59 [应用物理学];
学科分类号
摘要
In this paper we describe a regularization approach to diffraction enhanced tomography. This approach represents an improvement over methods based on a geometrical optics approximation. Reconstructed images of the attenuation coefficients and refractive indices of computer generated phantoms are presented. An experimental scheme is also discussed, which utilizes a first-generation tomography set-up, in conjunction with an analyser crystal.
引用
收藏
页码:A168 / A172
页数:5
相关论文
共 28 条
[1]   DYNAMICAL THEORY OF X-RAY DIFFRACTION IN CRYSTALS WITH DEFECTS [J].
AFANASEV, AM ;
KOHN, VG .
ACTA CRYSTALLOGRAPHICA SECTION A-CRYSTAL PHYSICS DIFFRACTION THEORETICAL AND GENERAL CRYSTALLOGRAPHY, 1971, A 27 (SEP1) :421-&
[2]  
[Anonymous], 2010, XCOM PHOTON CROSS SE
[3]  
Barrett HH., 1981, RADIOLOGICAL IMAGING
[4]   X-ray microtomography (mu CT) using phase contrast for the investigation of organic matter [J].
Beckmann, F ;
Bonse, U ;
Busch, F ;
Gunnewig, O .
JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY, 1997, 21 (04) :539-553
[5]   AN X-RAY INTERFEROMETER WITH LONG SEPARATED INTERFERING BEAM PATHS (E) [J].
BONSE, U ;
HART, M .
APPLIED PHYSICS LETTERS, 1965, 7 (04) :99-&
[6]   AN X-RAY INTERFEROMETER [J].
BONSE, U ;
HART, M .
APPLIED PHYSICS LETTERS, 1965, 6 (08) :155-&
[7]  
BORN M, 1970, PRINCIPLES OPTICS
[8]   Inverse problem in the X-ray phase contrast method [J].
Bushuev, VA ;
Sergeev, AA .
TECHNICAL PHYSICS LETTERS, 1999, 25 (02) :83-85
[9]  
Bushuev VA, 1998, CRYSTALLOGR REP+, V43, P538
[10]   Diffraction enhanced x-ray imaging [J].
Chapman, D ;
Thomlinson, W ;
Johnston, RE ;
Washburn, D ;
Pisano, E ;
Gmur, N ;
Zhong, Z ;
Menk, R ;
Arfelli, F ;
Sayers, D .
PHYSICS IN MEDICINE AND BIOLOGY, 1997, 42 (11) :2015-2025