核技术 第29卷 致谢作者感谢复旦大学附属肿瘤医院杨文涛博士 175-194 和施达仁教授提供了实验样品 CHEN Jianwen, GAO Hongyi, LI Ruxin, et al. Prog 参考文献 I 1 Chapman D, Thomlinson W, Arfelli F, et al. Rev sci I Bravin A, Fiedler S, Thomlinson wC, et al. Proc SPIE, Instrum, 1995, 67(CD suppl) 12 Chapman D, Thomlinson W, Johnston R E, et al. Phys 2 LewisRA. Phys Med Biol, 2004, 49: 3573--3583 Biol,1997,42:2015-2025 3黄万霞,袁清习,田玉莲,等.物理学报,2005,25:67713 Dilmanian FA, Zhong Z,RenB,etal. Phys Med Biol 2000.45:933-946 Qingxi, TIAN Yulian, et al. 14 Suortti P. Thomlinson W. Phys Med Biol. 2003. 48:R1- Acta Phys Sin, 20 R35 4 Fiedler, Pagot E, Cloetens P, er al. Proc SPIE,2003,15袁清习,田玉莲,朱佩平,等.核技术,2004,27:72 5030:266-273 5朱佩平,王寯越,袁清习,等.物理学报,2005,25:58 YUAN Qingxi, TIAN Yulian, ZHU Peiping, et al. Nucl Tech,2004,27:725-728 ZHU Peiping, WANG Junyue, YUAN Qingxi; et al. Acta16刘成林,闫晓辉,张新夷,等.核技术,2006 Phys sin,2005,25:58-63 29(12)885-890 6 Zhong Z, Chapman D, Connor D, et al. Synchrotron LIU Chenglin, YAN Xiaohui, ZHANG Xinyi, et al. Nucl Radiation News, 2002, 15(6): 27-34 Tech,2006,29(12):885-890 7 Spanne P, Matsuo C RS,Katafuchi T, et al. Med Phys, 17 Liu CL, Zhang Y, Zhang X Y, et al. Med Sci Monit, 2005 2005,32:2690-2697 l1(S):MT33-3 8 Arfelli F M,Bonvicini V, et al. Phys Med Biol, 18 Miklos K Z, Sayers DE, Zhong Z. Phys Med Biol, 2003 48:325-340 9 Menk R H Nuclear Physics, 1999, 78(Suppl): 604--609 10陈建文,高鸿奕,李儒新,等.物理学进展,2005,25 Studies on some basic problems about diffraction enhanced imaging I Relation between the contrast of imaging and the energy of X-rays LIU Chenglin,2 YAN Xiaohui' ZHANG Xinyi. 3 ZHU Peiping* HUANG Wanxia YUAN Qingxi 1 (Synchrotron Radiation Research Center, Physics Department, Surface Physics(National Key) Laboratory of Fudan University, Shanghai 200433, China) 2(Physics Department of Yancheng Teachers'College, Yancheng 224002, China 3 Shanghai Research Center of Acupuncture and Meridian, Shanghai 201203, China 4( Beijing Synchrotron Radiation Facility Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing 100049. China) Abstract For discussing the relation between the contrast of X-ray diffraction enhanced imaging(DED)and the energy of X-rays, the massive samples of breast tissue including normal and cancerous were studied with the del method using the hard X-rays from 4Wia beamline at the Beijing Synchrotron Radiation Facility(BSRF). The results show that the contrasts of the peak-position image or apparent absorption image keep unchanged when different X-ray energies are used. The contrast of refraction image trends to be weakened when the X-ray energy is increased. As a result, it seems the del method is fit to image objects made of light elements Key words X-ray diffraction enhanced imaging, Contrast, X-ray energy, Synchrotron radiation, Breast tissue CLC 0434 R817884 核 技 术 第 29 卷 致谢 作者感谢复旦大学附属肿瘤医院杨文涛博士 和施达仁教授提供了实验样品。 参考文献 1 Bravin A, Fiedler S, Thomlinson W C, et al. Proc SPIE, 2002, 4862: 167—177 2 Lewis R A. Phys Med Biol, 2004, 49: 3573—3583 3 黄万霞, 袁清习, 田玉莲, 等. 物理学报, 2005, 25: 677 —681 HUANG Wanxia, YUAN Qingxi, TIAN Yulian, et al. Acta Phys Sin, 2005, 25: 677—681 4 Fiedler S, Pagot E, Cloetens P, et al. Proc SPIE, 2003, 5030: 266—273 5 朱佩平, 王寯越, 袁清习, 等. 物理学报, 2005, 25: 58 —63 ZHU Peiping, WANG Junyue, YUAN Qingxi, et al. Acta Phys Sin, 2005, 25: 58—63 6 Zhong Z, Chapman D, Connor D, et al. Synchrotron Radiation News, 2002, 15(6): 27—34 7 Spanne P, Matsuo C R S, Katafuchi T, et al. Med Phys, 2005, 32: 2690—2697 8 Arfelli F, Assante M, Bonvicini V, et al. Phys Med Biol, 1998, 43: 2845—2852 9 Menk R H. Nuclear Physics, 1999, 78 (Suppl): 604—609 10 陈建文, 高鸿奕, 李儒新, 等. 物理学进展, 2005, 25: 175—194 CHEN Jianwen, GAO Hongyi, LI Ruxin, et al. Prog. in Phys, 2005, 25: 175—194 11 Chapman D, Thomlinson W, Arfelli F, et al. Rev Sci Instrum, 1995, 67 (CD suppl) 12 Chapman D, Thomlinson W, Johnston R E, et al. Phys Med Biol, 1997, 42: 2015—2025 13 Dilmanian F A, Zhong Z, Ren B, et al. Phys Med Biol, 2000, 45: 933—946 14 Suortti P, Thomlinson W. Phys Med Biol, 2003, 48: R1— R35 15 袁清习, 田玉莲, 朱佩平, 等. 核技术, 2004, 27: 725— 728 YUAN Qingxi, TIAN Yulian, ZHU Peiping, et al. Nucl Tech, 2004, 27: 725—728 16 刘成林 , 闫晓辉 , 张新夷 , 等 . 核技术 , 2006, 29(12):885—890 LIU Chenglin, YAN Xiaohui, ZHANG Xinyi, et al. Nucl Tech, 2006, 29(12): 885—890 17 Liu C L, Zhang Y, Zhang X Y, et al. Med Sci Monit, 2005, 11(5): MT33—38 18 Miklos K Z, Sayers D E, Zhong Z. Phys Med Biol, 2003, 48: 325—340 Studies on some basic problems about diffraction enhanced imaging I. Relation between the contrast of imaging and the energy of X-rays LIU Chenglin1,2 YAN Xiaohui1 ZHANG Xinyi1,3 ZHU Peiping4 HUANG Wanxia4 YUAN Qingxi4 1 ( Synchrotron Radiation Research Center, Physics Department, Surface Physics (National Key) Laboratory of Fudan University, Shanghai 200433,China ) 2 ( Physics Department of Yancheng Teachers’ College, Yancheng 224002,China ) 3 ( Shanghai Research Center of Acupuncture and Meridian, Shanghai 201203, China ) 4 ( Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing 100049, China ) Abstract For discussing the relation between the contrast of X-ray diffraction enhanced imaging (DEI) and the energy of X-rays, the massive samples of breast tissue including normal and cancerous were studied with the DEI method using the hard X-rays from 4W1A beamline at the Beijing Synchrotron Radiation Facility (BSRF). The results show that the contrasts of the peak-position image or apparent absorption image keep unchanged when different X-ray energies are used. The contrast of refraction image trends to be weakened when the X-ray energy is increased. As a result, it seems the DEI method is fit to image objects made of light elements. Key words X-ray diffraction enhanced imaging, Contrast, X-ray energy, Synchrotron radiation, Breast tissue CLC O434, R817