J. Phys. IV France
Volume 104, March 2003
Page(s) 81 - 84

J. Phys. IV France
104 (2003) 81
DOI: 10.1051/jp4:200300034

The scanning transmission X-ray microscope at NSRL

S. Jiang1, 2, L. Chen1, C.Y. Xu1, S.J. Fu1, J. Chen2 and Z. Xu2

1  National Synchrotron Radiation Laboratory, The University of Science and Technology of China, China
2  Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, China

A scanning transmission X-ray microscope (STXM) is under construction at NSRL in China. According to schedule, the STXM project will be completed in 2003. The monochromatic X-rays for the STXM are from the monochromator which is a combination of condense zone plates and a pinhole. The flux at the sample is the order of 105~ 106 photons/s at) 100 mA. But the monochromatic X-rays aren't appropriate for spectromicroscopy because of their poor monochromaticity. The STXM is placed in the chamber full of Helium gas. All parts of the STXM are controlled by a computer. The finest zone width of the MZP is 45 nm, the outer diameter is 90 $\mu$m, and the central stop diameter is 40 $\mu$m. The detector is a proportional counter made in NSRL. The software Kontron for image is purchased from Germany.

© EDP Sciences 2003