双相氙闪烁探测器中的位置重建
仪器与探测器
2015-06-03 v2 天体物理仪器与方法
医学物理
摘要
我们研究了统计重建算法,即最大似然法和最小二乘法,在双相液氙探测器事件重建问题中的应用。开发了一种迭代方法,利用非准直伽马射线源获取的校准数据,原位重建 PMT 光响应函数。使用所描述的技术,研究了 ZEPLIN-III 暗物质探测器对 122 keV 伽马射线的性能。对于探测器内部区域(R<100 mm),在水平面内分别测得初级闪烁和次级闪烁的空间分辨率为 13 mm 和 1.6 mm FWHM。在该能量下实现了 8.1% FWHM 的能量分辨率。目前正在进行将此技术用于改善性能并降低医学应用闪烁相机成本的研究。
引用
@article{arxiv.1112.1481,
title = {Position Reconstruction in a Dual Phase Xenon Scintillation Detector},
author = {V. N. Solovov and V. A. Belov and D. Yu. Akimov and H. M. Araújo and E. J. Barnes and A. A. Burenkov and V. Chepel and A. Currie and L. DeViveiros and B. Edwards and C. Ghag and A. Hollingsworth and M. Horn and G. E. Kalmus and A. S. Kobyakin and A. G. Kovalenko and V. N. Lebedenko and A. Lindote and M. I. Lopes and R. Lüscher and P. Majewski and A. St J. Murphy and F. Neves and S. M. Paling and J. Pinto da Cunha and R. Preece and J. J. Quenby and L. Reichhart and P. R. Scovell and C. Silva and N. J. T. Smith and P. F. Smith and V. N. Stekhanov and T. J. Sumner and C. Thorne and R. J. Walker},
journal= {arXiv preprint arXiv:1112.1481},
year = {2015}
}
备注
8 pages, 7 figures, in the Conference Record of IEEE NSS 2011, accepted for publication in IEEE Trans. on Nuc. Sci