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2020天文年會
中研院天文所 國際會議廳

論文摘要

Performance of Observing Gamma-Ray Polarization using CubeSat

[ Poster ]

Tzu-Hsiang Su (NTHU), Yun-Hsin Chung (NTHU), Chien-Ying Yang (NTHU), Yi-Chi Chang (NTHU), Che-Yen Chu (NTHU), Jr-Yue Hsiang (NTHU), Jeng-Lun Chiu (NSPO), Chic-Hsun Lin (AS). Philippe Laurent (CEA/DRF/IRFU/DAp, Saclay, France), Jerome Rodriguez (CEA/DRF/IRFU/DAp, Saclay, France), and Hsiang-Kuang Chang (NTHU)

Compton polarimeter (Compol) is an instrument onboard a 3U CubeSat dedicated to measuring the polarization of gamma-ray sources. Here, we discuss the performance of the instrument pin gamma-ray burst (GRB) polarization measurements based on one layer of 3 mm x 3 mm x 6 mm gadolinium aluminum gallium garnet (GAGG) scintillator, with each layer being a 16 x 16 array. Additionally, four layers of double-sided silicon strip detectors (DSSDs) sit on top of the scintillator (Model 1-2, Yang et al. 2020). Using Monte-Carlo simulations with Megalib toolkit, we can determine the minimum detectable polarization (MDP) of our detector. The MDP of the model will be presented in this poster, and the MDP of another model with different designs will be presented in Chung’s poster. For other characteristics (i.e. efficiency), it is discussed in Hsiang’s oral