Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2011, Vol. 22 ›› Issue (5): 282-286 doi: 10.13538/j.1001-8042/nst.22.282-286

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Scanning transmission ion microscopy on Fudan SPM facility

LI Yongqiang SATOH Takahiro SHEN Hao ZHENG Yi LI Xinyi LIU Bo   

  1. 1Institute of Modern Physics, Applied Ion Beam Physics Laboratory, Fudan University, Shanghai 200433, China 2Takasaki Advanced Radiation Research Institute, Japan Atomic Energy Agency, 1233 Watanuki-machi, Takasaki, Gunma 370-1292, Japan
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LI Yongqiang, SATOH Takahiro, SHEN Hao, ZHENG Yi, LI Xinyi, LIU Bo. Scanning transmission ion microscopy on Fudan SPM facility.Nuclear Science and Techniques, 2011, 22(5): 282-286     doi: 10.13538/j.1001-8042/nst.22.282-286

Abstract:

In this paper,we report a novel measurement system based on the development of Fudan Scanning Proton Microscopy(SPM) facility.By using Si-PIN diode(Hamamatsu S1223-01) detector,scanning transmission ion microscopy(STIM) measurement system has been set up.It can provide density and structural images with high probing efficiency and non-destruction by utilizing the energy loss of high energy(MeV) and focused ions penetrating through a thin sample.STIM measurement is able to map the density distribution of organic elements which mostly compose biology materials,such information can not be detected by using conventional Be-windowed Si(Li) X-ray detector in Particle Induced X-ray Emission(PIXE) technique.The spatial resolution capability of STIM is higher than PIXE technique at same accelerator status.As a result of STIM measurement,Paramecium attached on the top of Kapton tube was measured by STIM.

Key words: Energy loss, STIM, PIXE, Spatial resolution, Computed tomography