Development of the GEM-TPC X-ray Polarimeter with the Scalable Readout SystemTakao Kitaguchi, Asami Hayato, Wataru Iwakiri, Yoko Takeuchi, Megu Kubota, Kazuki Nishida, Teruaki Enoto and Toru TamagawaEPJ Web Conf., 174 (2018) 01015DOI: https://doi.org/10.1051/epjconf/201817401015