Author:
Sun Zhixiang,Gu Mu,Liu Xiaolin,Liu Bo,Zhang Juannan,Huang Shiming,Ni Chen
Abstract
AbstractTo improve the detection efficiency of the structured scintillation screen with CsI(Tl) micro-square-frustums based on oxidized Si micropore array template in the case of a period as small as microns, the influence of Si wall thickness of the CsI(Tl) micro-square-frustums on the performance of the structured screen in X-ray imaging was investigated. The results show that when CsI(Tl) at the bottom of the screen is structured, the detective quantum efficiency (DQE) improves at almost all spatial frequency as the top thickness of the Si wall tSi decreases. However, when CsI (Tl) at the bottom of the screen is not structured, the DQE becomes better at low-frequency and worse at high-frequency as tSi decreases. The results can provide guidance for optimizing tSi according to the comprehensive requirements of detection efficiency and spatial resolution in X-ray imaging.
Funder
National Natural Science Foundation of China
The beamline BL13HB at the Shanghai Synchrotron Radiation Facility
Publisher
Springer Science and Business Media LLC
Cited by
3 articles.
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