Haipeng Zhang, Ke Li, Feixiang Wang, Hong Yu, Changzhe Zhao, Guohao Du, Zhongliang Li, Biao Deng, Honglan Xie, Shensheng Han, Tiqiao Xiao. Megapixel X-ray ghost imaging with a binned detector in the object arm[J]. Chinese Optics Letters, 2022, 20(3): 033401