Design and experimental research of four-channel spherically bent crystal imaging system

Xin Qiuqi; Li Yaran; Chen Liang; Liu Hanwei; Xu Jie; Wang Xin; Mu Baozhong

doi:10.11884/HPLPB201931.190006

Volume 31 Issue 5

May 2019

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Xin Qiuqi, Li Yaran, Chen Liang, et al. Design and experimental research of four-channel spherically bent crystal imaging system[J]. High Power Laser and Particle Beams, 2019, 31: 052001. doi: 10.11884/HPLPB201931.190006

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Xin Qiuqi, Li Yaran, Chen Liang, et al. Design and experimental research of four-channel spherically bent crystal imaging system[J]. High Power Laser and Particle Beams, 2019, 31: 052001. doi: 10.11884/HPLPB201931.190006

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Design and experimental research of four-channel spherically bent crystal imaging system

doi: 10.11884/HPLPB201931.190006

Xin Qiuqi^{1, 2
,},
Li Yaran^{1, 2},
Chen Liang^{1, 2},
Liu Hanwei^{1, 2},
Xu Jie^{1, 2},
Wang Xin^{1, 2},
Mu Baozhong^{1, 2
,
,}

1.
Key Laboratory of Advanced Micro-structured Materials, Ministry of Education, Tongji University, Shanghai 200092, China
2.
School of Physics Science and Engineering, Tongji University, Shanghai 200092, China

Received Date: 2019-01-07
Rev Recd Date: 2019-03-26
Publish Date: 2019-05-15

Abstract

Abstract

Since dynamic X-ray fluorescence imaging technology requires diagnostic equipment which has high throughput and narrow spectral width, we present the design of four-channel spherically bent crystal imaging system. The system adopts a cone spatial configuration to solve the problem of multiple channel coupling. With the size limit of framing camera taken into account, the images are reasonably planned by adjusting the position of bent crystal. We utilize Ge 400 crystal as the imaging component at 4.51 keV and then propose optical initial structural parameters of system. Grid backlit images of single channel are obtained by using X-ray tube in the laboratory. The magnification is 7.8, and the spatial resolution is 15 μm. The results preliminarily verify the performance of system. The four-channel system combined with the framing camera can effectively solve the technical difficulties such as weak signal and low signal to noise ratio in dynamic fluorescence imaging.
- spherically bent crystal,
- dynamic X-ray fluorescence imaging,
- monochromatic imaging,
- spatial resolution

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References(19)

References

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