Imaging properties of a tetra wedge readout |
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| Authors: | Liu Yong-An Yan Qiu-Rong Sai Xiao-Feng Wei Yong-Lin Sheng Li-Zhi Yang Hao Hu Hui-Jun Zhao Bao-Sheng |
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| Affiliation: | State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; Graduate University, Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | ![]()
The decoding principle of a tetra wedge anode, which is a development of the wedge and strip anode, is described. The influence of charge cloud size on decoding accuracy is studied using the Monte Carlo method. Simulation results show that the decoding error is large when the size of charge clouds collected by the anode is small. Thus, the charge clouds collected by the tetra wedge anode should reach a necessary size to ensure accurate decoding. Finally, using the ultraviolet photon counting imaging system, the linearity and the spatial resolution of the system are tested. Experimental results show that the system has a good linearity and the spatial resolution is better than 100 μm. |
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| Keywords: | detectors photon counting imaging tetra wedge anode microchannel plate |
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