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arXiv physics/0510221physics.ins-det
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CsI(Tl)scintillator阵列平板多阳极光电倍增管不同前端系统性能的研究

Studies of the performance of different front-end systems for flat-panel multi-anode PMTs with CsI(Tl) scintillator arrays

H. Sekiya, K. Hattori, H. Kubo, K. Miuchi, T. Nagayoshi, H. Nishimura, Y. Okada, R. Orito, A. Takada, A. Takeda, T. Tanimori, K. Ueno

摘要:

我们已经研究了两种不同类型的前端系统的性能,我们的伽马相机的基础上滨松H8500(平板64通道多阳极PSPMT)与碘化铯(铊)闪烁体阵列。该阵列由64个$6\times6\times20{\rm mm}^3$像素组成,对应于H8500的阳极像素。其中一个系统是基于商业ASIC芯片,以读取每个阳极。其他的基于阳极之间的电阻性电荷分配器网络以减少读出通道。在这两个系统中,每个像素(6毫米)清楚地解决了泛场照射的$^{137}$ Cs。我们还研究了这些系统的能量分辨率,并显示了一些光电倍增管之间的电阻网络级联的大面积探测器的性能。

英文摘要:

We have studied the performance of two different types of front-end systems for our gamma camera based on Hamamatsu H8500 (flat-panel 64 channels multi-anode PSPMT) with a CsI(Tl) scintillator array. The array consists of 64 pixels of $6\times6\times20{\rm mm}^3$ which corresponds to the anode pixels of H8500. One of the system is based on commercial ASIC chips in order to readout every anode. The others are based on resistive charge divider network between anodes to reduce readout channels. In both systems, each pixel (6mm) was clearly resolved by flood field irradiation of $^{137}$Cs. We also investigated the energy resolution of these systems and showed the performance of the cascade connection of resistive network between some PMTs for large area detectors.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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