论文标题
敏捷：敏捷伽马射线望远镜的蒙特卡洛模拟
AGILESim: Monte Carlo simulation of the AGILE gamma-ray telescope
论文作者
论文摘要
蒙特卡洛模拟在重现太空望远镜科学性能（例如角度分辨率）方面的准确性是正确设计任务的必要性。 A brand-new Monte Carlo simulator of the Astrorivelatore Gamma ad Immagini LEggero (AGILE)/Gamma-Ray Imaging Detector (GRID) space telescope, AGILESim, is built using the customizable Bologna Geant4 Multi-Mission Simulator (BoGEMMS) architecture and the latest Geant4 library to reproduce the instrument performance of the AGILE/GRID instrument.根据仪器电子读出逻辑，将蒙特卡洛模拟输出数字化在Bogemms后处理管道中进行数字化，然后转换为机载数据处理格式，并最终通过标准任务上的地面重建管道进行分析，包括Kalman滤波器，包括Kalman滤波器，作为空间中的实际观察。在本文中，我们着重于敏捷的科学验证，通过再现（i）跟踪器平面的转换效率，（ii）通过接地组装，整合和验证活动测量的跟踪器费用读数分布，以及（iii）Vela pulsar在100 mev-1 geev-1 geev-1 geev-1 geev-1 geev-1 geev-1 geev-1 geev-1 geev-1 geev-1 geev-1 geev-1 geev-1 geev-1 geev-1 geev-1 geev-1 geev-1 geev-1 geev-1 geev-1 geev-1 geev。我们测量了类似Vela的点源$ 2.0^{+0.2} _ { - 0.3} $和$ 0.8^{+0.1} _ { - 0.1} $ 100-300和300-1000 MEV能量频段的飞行内分辨率（FWHM）。模拟结果与敏捷的地面和空间性能的成功交叉比较验证了Bogemms框架，以将其应用于未来的伽马射线跟踪器（例如E-Astrogam和Amego）。
The accuracy of Monte Carlo simulations in reproducing the scientific performance of space telescopes (e.g. angular resolution) is mandatory for a correct design of the mission. A brand-new Monte Carlo simulator of the Astrorivelatore Gamma ad Immagini LEggero (AGILE)/Gamma-Ray Imaging Detector (GRID) space telescope, AGILESim, is built using the customizable Bologna Geant4 Multi-Mission Simulator (BoGEMMS) architecture and the latest Geant4 library to reproduce the instrument performance of the AGILE/GRID instrument. The Monte Carlo simulation output is digitized in the BoGEMMS postprocessing pipeline, according to the instrument electronic read-out logic, then converted into the onboard data handling format, and finally analyzed by the standard mission on-ground reconstruction pipeline, including the Kalman filter, as a real observation in space. In this paper we focus on the scientific validation of AGILESim, performed by reproducing (i) the conversion efficiency of the tracker planes, (ii) the tracker charge readout distribution measured by the on-ground assembly, integration, and verification activity, and (iii) the point-spread function of in-flight observations of the Vela pulsar in the 100 MeV - 1 GeV energy range. We measure an in-flight angular resolution (FWHM) for Vela-like point sources of $2.0^{+0.2}_{-0.3}$ and $0.8^{+0.1}_{-0.1}$ degrees in the 100 - 300 and 300 - 1000 MeV energy bands, respectively. The successful cross-comparison of the simulation results with the AGILE on-ground and in-space performance validates the BoGEMMS framework for its application to future gamma-ray trackers (e.g. e-ASTROGAM and AMEGO).
