Experimental demonstration of a hybrid photon detector concept based on the Timepix detector
Experimental demonstration of a hybrid photon detector concept based on the Timepix detector
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DOI：
10.1016/j.nima.2008.07.079
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发表时间：
2008-10-01
影响因子：
1.4
通讯作者：
Joram, Christian
中科院分区：
文献类型：
--
作者：
Ruegheimer, Tilman K.;Gebert, Ulrike;Joram, Christian
具有像素化读出电子器件的混合光子检测器允许具有高空间分辨率的光检测。我们提出了基于65k像素探测器“Timepix”的混合光子探测器的概念。第一个实验的Timepix检测器与光电子进行，并证明了这一概念结合了良好的空间和时间分辨率的光电子检测。通过与GEANT4模拟的实验数据的比较，我们确定的时间分辨率的限制因素：电子从传感器表面和相邻像素之间的电荷共享，结合有限的上升时间的MEMS输出脉冲的背散射。杠杆，其改进，在未来的专用探测器设计确定。(C)2008 Elsevier B.V.保留所有权利。
Hybrid photon detectors with pixelated readout electronics allow for photo-detection with a high spatial resolution. We present the concept of a hybrid photon detector based on the 65k-pixel detector "Timepix". First experiments of the Timepix detector with photo-electrons were carried out and demonstrate that the concept combines good spatial and time resolutions for photo-electron detection. By comparison of the experimental data with GEANT4 simulations we identify the limiting factors for the time resolution: Electron backscattering from the sensor surface and charge-sharing among neighboring pixels in combination with the finite rise time of the preamplifier output pulse. Levers for its improvement in a future dedicated detector design are identified. (C) 2008 Elsevier B.V. All rights reserved.