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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 ]

Yun-Hsin Chung (NTHU), Tzu-Hsiang Su (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 in gamma-ray burst (GRB) polarization measurements based on two layers of 3 mm x 3 mm x 6 mm gadolinium aluminum gallium garnet (GAGG) scintillator, with each layers being a 16 x 16 array (Model 2-1, 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 Su’s poster. More characteristics (i.e. efficiency) will be discussed in Hsiang’s oral.