HERMES-TP/SP背景和响应模拟
The HERMES-TP/SP background and response simulations
摘要:
HERMES(高能快速模块化土星探测器)是一项创新性飞行任务,旨在通过一个装有宽带X射线和伽马射线探测器的立方体卫星星座观测伽马射线暴等瞬态高能事件。该探测器是基于一个固态硅漂移探测器(SDD)耦合到闪烁体晶体,并在2 keV至2 MeV波段敏感。准确评价预期的在轨仪器背景对于评估实验的科学性能至关重要。将提供HERMES有效载荷的蒙特卡罗模拟的概要,描述对总背景的各种贡献和仪器设计中遵循的优化策略。此外,模拟被用来推导仪器的有效面积和响应矩阵,也作为相对于检测器参考系的源位置的函数。
英文摘要:
HERMES (High Energy Rapid Modular Ensemble of Satellites) is an innovative mission aiming to observe transient high-energy events such as gamma-ray bursts (GRBs) through a constellation of CubeSats hosting a broadband X and gamma-ray detector. The detector is based on a solid-state Silicon Drift Detector (SDD) coupled to a scintillator crystal, and is sensitive in the 2 keV to 2 MeV band. An accurate evaluation of the foreseen in-orbit instrumental background is essential to assess the scientific performance of the experiment. An outline of the Monte Carlo simulations of the HERMES payload will be provided, describing the various contributions on the total background and the optimization strategies followed in the instrument design. Moreover, the simulations were used in order to derive the effective area and response matrices of the instrument, also as a function of the source location with respect to the detector frame of reference.
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