【摘要】 HAMAMATSU的H8500型64路多阳极平板型光电倍增管以其非常优越的位置分辨被广泛地应用于各种小型探测装置和大型阵列探测装置,多信号的有效、快速和最为经济的简化电子学线路读出成为多阳极光电倍增管非常重要的研究内容。基于DPC电桥简化处理多阳极光电倍增管信号,在未采用铅准直的情况下测量137Csγ源最好位置分辨(FWHM)达到了2mm左右。更多还原

【Abstract】 There are 64 channels for the new flat-panel position-sensitive photomultiplier tubes of H8500,which have excellent position resolution and are widely applied to various small and large array detection equipments.It’s important that the effective、fast and economical predigested processing electronics in the Mutilanode PMT’s signals studies have been made. The R&D work that the predigested processing 64 signals read out circuit of Mutilanode PMTs for Micro-PET and PET was developing recently.The detector was measured by ¹³⁷Cs γ-rays source without Pb collimator,the best position resolution of 0.6mm is achieved.更多还原