This article presents the development of diced SrI2:Eu arrays and their scintillation properties when coupled with a multipixel photon counter (MPPC) array. Using a dicing technique specific to halide scintillators, a high-energy resolution scintillator array is developed that is cost-effective and widely applicable. The developed SrI 2 :Eu arrays are of 3 x 3 x 3 mm3/pixel 4 x 4 matrix (TYPE1) and 1 x 1 x 1 mm 3 /pixel 9 x 9 matrix (TYPE2) structures. We fabricated test gamma-ray detector modules consisting of the TYPE1 and TYPE2 arrays coupled with an MPPC array. The mean peak to valleys ratio is 85.3 ± 14.9 for the TYPE1 array and 38.5 ± 16.6 for the TYPE2 array detector. The average energy resolutions obtained for the TYPE1 and TYPE2 gamma-ray detectors were 5.4 ± 0.4% full-width at half-maximum (FWHM) and 5.2 ± 0.6% FWHM, respectively, for 662-keV gamma-rays. The variation in the signal pulse height of the TYPE1 and TYPE2 detectors was only 10.6% and 10.4% in FWHM, respectively. These results demonstrated that the dicing technique proposed in this article could be applied to hygroscopic halide scintillators.

中文翻译：

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由切割铕掺杂 SrI2 闪烁体阵列和 TSV-MPPC 阵列组成的伽马射线探测器阵列的开发


本文介绍了切割 SrI2:Eu 阵列的开发及其与多像素光子计数器 (MPPC) 阵列结合使用时的闪烁特性。使用卤化物闪烁体特有的切割技术，开发出一种经济高效且适用范围广泛的高能量分辨率闪烁体阵列。所开发的SrI 2 :Eu阵列具有3 x 3 x 3 mm3/像素4 x 4矩阵（类型1）和1 x 1 x 1 mm 3 /像素9 x 9矩阵（类型2）结构。我们制造了由 TYPE1 和 TYPE2 阵列以及 MPPC 阵列组成的测试伽马射线探测器模块。 TYPE1 阵列检测器的平均峰谷比为 85.3 ± 14.9，TYPE2 阵列检测器的平均峰谷比为 38.5 ± 16.6。对于 662 keV 伽马射线，TYPE1 和 TYPE2 伽马射线探测器获得的平均能量分辨率分别为 5.4 ± 0.4% 半峰全宽 (FWHM) 和 5.2 ± 0.6% FWHM。 TYPE1和TYPE2探测器的信号脉冲高度的FWHM变化分别仅为10.6%和10.4%。这些结果表明本文提出的切割技术可以应用于吸湿性卤化物闪烁体。