构建了一种基于多路并行探测提高光子计数关联成像质量的方案,分析了其成像性能,并通过数值模拟验证了其有效性。探讨了探测路数、回波信号平均光子数和辐照散斑场的稀疏度对成像质量的影响。数值模拟结果表明,该方案下的关联成像质量与探测路数成正相关,随着回波信号平均光子数和辐照散斑场稀疏度的增加,成像质量先提升后降低。

In this study, a scheme is constructed based on multi-channel parallel detection to improve the quality of photon-counting correlated imaging. Further, the imaging performance of the constructed scheme is analyzed and verified using numerical simulation. Subsequently, the influences of the detection channel number, the average level of the echo signal photon, and the sparsity of the irradiation speckle field on the imaging quality are discussed. The numerical simulation results show that the imaging quality is positively correlated with the detection channel numbers in this scheme. The imaging quality is first improved and then degraded with an increase in the average level of the echo signal photon and the sparsity of the irradiation speckle field.