Abstract: The ASTRO-E satellite is scheduled for launch in 2000by the Institute of Space and Astronautical Science(ISAS). In this paper the design and performance of thehard x ray detector (HXD) developed for ASTRO-E aredescribed. The HXD is a combination of YAP/BGO phoswichscintillators and silicon PIN diodes covering a wideenergy band of 10 - 700 keV. The detector background isreduced down to several times10$+$MIN@6$/c/s/cm$+2$//keV, and the sensitivity of theHXD is more than one order of magnitude higher than anyother past missions in the range of a few 10 keV toseveral 100 keV. Thus ASTRO-E HXD is expected toachieve an extreme high performance for detectingcosmic hard x rays and low-energy gamma rays.Astrophysics to be explored with the HXT are expectedto be extremely widespread and rich. !8
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机译：摘要：ASTRO-E卫星计划于2000年由太空与航天科学研究所（ISAS）发射。本文介绍了为ASTRO-E开发的硬X射线探测器（HXD）的设计和性能。 HXD是YAP / BGO荧光闪烁体和硅PIN二极管的组合，覆盖了10-700 keV的宽能带。探测器的本底降低了几倍10 $ + $ MIN @ 6 $ / c / s / cm $ + 2 $ // keV，并且HXD的灵敏度比其他任何过去的任务高出一个数量级以上。几个10 keV到几个100 keV。因此，ASTRO-E HXD有望在检测宇宙硬X射线和低能伽马射线方面实现极高的性能.HXT所探索的天体物理学预计将极为广泛和丰富。 ！8
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