⚡ 本页包含 AI 生成的分析内容，仅供参考
提出了一种基于采样的128×128直接光子计数X射线图像传感器，实现了3个能量仓的多能量分辨和60μm/pix的空间分辨率，解决了直接型探测中能谱分辨和像素集成度的问题。
Young Kim2, Sangwook Kim2, Dae-Kun Yoon2, Jun-Su Lee2, Jae-Chul Park2, Younghun Sung2, Seong-Deok Lee2, Seung-Tak Ryu1, Gyu-Hyeong Cho1 KAIST, Daejeon, Korea Samsung Advanced Institute of Technology, Yongin, Korea 1 2 The photon-counting method is one of several useful image-detection methods for digital X-ray imaging. The direct-type photon-counting method [1-3] has higher X-ray-to-charge conversion efficiency and position resolution compared with the indirect-type detection method [4]. Therefore, direct-type detection is more suitable for medical imaging applications for which the dose efficiency and the image quality are especially important. Figure 6.1.1 shows a lateral view of a direct-type X-ray photon-counting image sensor and the conceptual diagram of a unit pixel. When the X-ray-to-charge conversion occurs in the photoconductor, a charge packet drifts toward the input pad of the unit pixel. Then, the CMOS circuit generates a voltage signal corresponding to the received charge
Hyun-Sik Kim1, Sang-Wook Han2, Jun-Hyeok Yang1, Sunil Kim2,