多像元盖革模式APD的有限幅度分辨率
On the limited amplitude resolution of multipixel Geiger-mode APDs
摘要：
盖革模式雪崩光电二极管（G-APD）中有效像素的有限数目不仅导致其响应的非线性，而且还导致其响应的额外波动。这两种影响都考虑到计算的理想G-APD，这是有限的幅度分辨率。作为结果之一，基于G-APD的闪烁探测器的能量分辨率被示出为被限制到由G-APD中的像素的数量定义的某个最小值。
英文摘要：
The limited number of active pixels in a Geiger-mode Avalanche Photodiode (G-APD) results not only in a non-linearity but also in an additional fluctuation of its response. Both these effects are taken into account to calculate the amplitude resolution of an ideal G-APD, which is shown to be finite. As one of the consequences, the energy resolution of a scintillation detector based on a G-APD is shown to be limited to some minimum value defined by the number of pixels in the G-APD.
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