Refraction contrast 11 x-magnified X-ray imaging of large objects by MIRRORCLE-type table-top synchrotron

被引:31
作者
Hirai, Toru
Yamada, Hironari
Sasaki, Makoto
Hasegawa, Daisuke
Morita, Masaki
Oda, Yasuhito
Takaku, Jyunya
Hanashima, Takayasu
Nitta, Norihisa
Takahashi, Masashi
Murata, Kiyoshi
机构
[1] Ritsumeikan Univ, Fac Sci & Engn, Shiga 5258577, Japan
[2] Ritsumeikan Univ, Synchrotron Light Life Sci Ctr, Shiga 5258577, Japan
[3] Photon Prod Lab Ltd, Shiga 5230898, Japan
[4] Shiga Univ Med Sci, Dept Radiog, Otsu, Shiga 5202192, Japan
关键词
table-top synchrotron; projection X-ray imaging; refraction contrast; medical diagnosis;
D O I
10.1107/S0909049506027026
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 [仪器科学与技术]; 080401 [精密仪器及机械]; 081102 [检测技术与自动化装置];
摘要
The high-quality aspects of magnified X-ray images recorded using MIRRORCLE-6X are reported. MIRRORCLE-6X is inherently suitable for hard X-ray imaging owing to its magnified projection X-ray imaging, micrometre-size X-ray source point, wide radiation emission angle, X-ray spectrum ranging from 10 keV to 6 MeV, natural refraction contrast imaging and high flux output. Images produced with 11 x geometrical magnification display a sharply enhanced edge effect when generated using a 25 mm rod electron target. Image contrast is enhanced 2 x owing to refraction when compared with absorption contrast images. An imitation tumour implanted in a human chest phantom was made clearly visible by using edge enhancement on images. Soft tissue becomes highly visible as a natural consequence of refraction contrast when using hard X-rays for imaging. The authors believe that novel imaging provided by MIRRORCLE makes it a superior instrument for medical diagnosis.
引用
收藏
页码:397 / 402
页数:6
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