Abstract: The fourth Japanese X-ray astronomy satellite, ASTRO-D,was launched successfully by the Institute of Space andAstronautical Science on February 20, 1993 and wasnamed ASCA. Two of the focal plane detectors areimaging gas scintillation proportional counters (GasImaging Spectrometer:GIS). The GIS sensors performedthe energy resolution of 8% FWHM at 6 keV, and positionresolution of 0.5 mm FWHM on-board, which confirmedtheir ultimate capability as gas counters. The non-Xraybackground counting rate was approximately 6 $MUL10$+$MIN@4$/ c/s/cm$+2$//keV in the energy range of 2 -10 keV, which was as low as that achieved by the Gingainstrument. The scientific results obtained by the GISsensors are also presented.!6
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机译：摘要：日本第四颗X射线天文学卫星ASTRO-D由太空与航天科学研究所于1993年2月20日成功发射，命名为ASCA。焦平面检测器中的两个是成像气体闪烁比例计数器（GasImaging Spectrometer：GIS）。 GIS传感器在6 keV时的能量分辨率为8％FWHM，在板上的位置分辨率为0.5 mm FWHM，这证实了它们作为气体计数器的最终能力。在2 -10 keV的能量范围内，非X射线本底计数率约为6 $ MUL10 $ + $ MIN @ 4 $ / c / s / cm $ + 2 $ // keV，这与通过X射线获得的能量低银杏仪器。还介绍了GIS传感器获得的科学成果。！6
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