论文标题
小型卫星的软X射线检测,并在室温下使用商业CMOS传感器
Soft x-ray detection for small satellites with a commercial CMOS sensor at room temperature
论文作者
论文摘要
最近,与X射线卫星中经常使用的CCD相比,CMOS(互补的金属氧化物半导体)传感器已发展到可能会提高成像X射线检测的性能。我们使用Argonne National Laboratory的高级光子源在软X射线频带(250-1700 eV)中演示了X射线检测(250-1700 eV)。在室温下操作设备时,我们在250 eV时测量了48 eV的能源分辨率(FWHM),在1700 eV时的83 eV,与Chandra ACI和Suzaku XIS的性能相当。此外,我们证明IMX290LLR可以承受高达17.1 krad的辐射,使其适合在低地球轨道上使用的航天器。
Recently CMOS (complementary metal-oxide semiconductor) sensors have progressed to a point where they may offer improved performance in imaging x-ray detection compared to the CCDs often used in x-ray satellites. We demonstrate x-ray detection in the soft x-ray band (250-1700 eV) by a commercially available back-illuminated Sony IMX290LLR CMOS sensor using the Advanced Photon Source at the Argonne National Laboratory. While operating the device at room temperature, we measure energy resolutions (FWHM) of 48 eV at 250 eV and 83 eV at 1700 eV which are comparable to the performance of the Chandra ACIS and the Suzaku XIS. Furthermore, we demonstrate that the IMX290LLR can withstand radiation up to 17.1 krad, making it suitable for use on spacecraft in low earth orbit.