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Non-uniform photon-counting detector array on a fourth-generation ring to achieve uniform noise and spectral performance in Z-direction
Non-uniform photon-counting detector array on a fourth-generation ring to achieve uniform noise and spectral performance in Z-direction
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机译:第四代环上的非均匀光子计数探测器阵列,可在Z方向上实现均匀的噪声和光谱性能
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摘要
A computed tomography (CT) detector apparatus includes a plurality of detector arrays arranged in a ring, wherein for at least one array that includes a plurality of elements, an anode pixel pattern is non-uniform in a z-axis direction and a thickness of each element in the array is correspondingly non-uniform along the z-axis direction. A size of the anode pixels increases proportionally away from a center of the array, and a thickness of the elements increases away from the center of the array. The ratio of the thickness of the element to the size of the anode pixels is substantially the same over the array.
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