X-ray optics 'Owl' and 'Trinity'

被引：25

作者：

Ando, M

Hyodo, K

Sugiyama, H

Maksimenko, A

Pattanasiriwisawa, W

Mori, K

Roberson, J

Rubenstein, E

Tanaka, Y

Chen, JY

Xian, DC

Zhang, XW

机构：

[1] KEK, High Energy Accelerator Res Org, PF, Inst Mat Struct Sci, Tsukuba, Ibaraki 3050801, Japan

[2] GUAS, Sch Adv Studies, Dept Photo Sci, Miura, Kanagawa 2400193, Japan

[3] Ibaraki Prefectural Univ Hlth Sci, Dept Radiol Sci, Ibaraki 3000394, Japan

[4] Calif Ear Inst Stanford, Stanford, CA 94304 USA

[5] Stanford Univ, Sch Med, Dept Med, Stanford, CA 94305 USA

[6] NIMS, Tsukuba, Ibaraki 3050047, Japan

[7] Nanjing Inst Paleontol & Geol, Nanjing 210008, Peoples R China

[8] Acad Sinica, Inst High Energy Phys, Beijing Synchrotron Radiat Lab, Beijing 100039, Peoples R China

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2002年 / 41卷 / 7A期

关键词：

X-ray dark-field imaging; asymmetric reflection monochromator; analyzer; refraction contrast; X-ray bright-field imaging; vertical wiggler; synchrotron X-radiation; Fz grown silicon; crystal diffraction index; crystal thickness;

D O I：

10.1143/JJAP.41.4742

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report an X-ray optical system 'Owl', capable of dark-field imaging. It comprises a Bragg case asymmetric monochromator and a monolithic X-ray optics housing a collimator C and an analyzer A that can select only the refracted light by 4,4,0 diffraction and crystals C and A of 1.08 mm thickness. The angular width of diffraction is 0.3 murad at an X-ray energy of 35 keV. It has been proven that one can obtain the dark-field image corresponding to a forward diffraction beam as well as the bright-field image corresponding to a diffraction beam or vice versa depending on the specified thickness of the analyzer. Images due to refraction contrast in the dark-field imaging are clearly shown. In this paper, design and test of this X-ray optics and its preliminary applications are described in detail. Also another X-ray optics 'Trinity', which is capable of viewing three types of contrast, namely, refraction, phase interference and absorption, has been implemented.

引用

页码：4742 / 4749

页数：8

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