Chinese Optics Letters, 2016, 14 (12): 121102, Published Online: Aug. 2, 2018
Modeling the encoding structure and spatial resolution of photon counting imagers with Vernier anode readout Download: 613次
110.3010 Image reconstruction techniques 030.5260 Photon counting 040.7480 X-rays, soft x-rays, extreme ultraviolet (EUV)
Abstract
We present the spatial resolution estimation methods for a photon counting system with a Vernier anode. A limiting resolution model is provided according to discussions of surface encoding structure and quantized noise. The limiting resolution of a Vernier anode is revealed to be significantly higher than that of a microchannel plate. The relationship between the actual spatial resolution and equivalent noise charge of a detector is established by noise analysis and photon position reconstruction. The theoretical results are demonstrated to be in good agreement with the experimental results for a 1.2 mm pitch Vernier anode.
Hao Yang, Baosheng Zhao, Qiurong Yan, Yong’an Liu. Modeling the encoding structure and spatial resolution of photon counting imagers with Vernier anode readout[J]. Chinese Optics Letters, 2016, 14(12): 121102.