氮化硅/铝膜作为高能太空任务光学阻挡滤波器的多技术研究

IF 1.7 3区 工程技术 Q2 ENGINEERING, AEROSPACE
Luisa Sciortino, Marco Barbera, Salvatore Ferruggia Bonura, Michela Todaro, Elena Puccio, Fabio D’Anca, Ugo Lo Cicero, Pekka T. Törmä, Elena Magnano, Silvia Nappini, Igor Píš, Emanuele Perinati, Sebastian Diebold, Alejandro Guzman, Chris Tenzer, Gianpiero Buscarino, Christian Gollwitzer, Evelyn Handick, Michael Krumrey, Christian Laubis, Roberto Candia, Salvatore Varisco
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引用次数: 0

摘要

用于空间天体物理学飞行任务的 X 射线探测器容易受到能量超出工作能量范围的光子造成的噪声的影响;因此,需要高效的外部光学阻挡滤波器来屏蔽探测器的带外辐射。这些滤光片在满足 X 射线探测器的科学要求方面起着至关重要的作用,它们在整个飞行任务期间的正常运行对实验活动的成功至关重要。我们研究了将氮化硅和铝制成的薄夹层膜作为空间任务中高能探测器的光学阻挡滤波器。在此,我们报告了对厚度在 40 纳米到 145 纳米之间、两面涂有几十纳米铝的氮化硅膜进行多技术表征的结果。我们特别测量了同步辐射光束线的 X 射线透射率,紫外线、可见光和近红外辐射的抑制率,通过 X 射线光电子能谱测量铝表面的原生氧化物含量,通过原子力显微镜测量样品表面的形貌,以及质子辐照下的老化效应。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Multi-technique investigation of silicon nitride/aluminum membranes as optical blocking filters for high-energy space missions
X-ray detectors for space astrophysics missions are susceptible to noise caused by photons with energies outside the operating energy range; for this reason, efficient external optical blocking filters are required to shield the detector from the out-of-band radiation. These filters play a crucial role in meeting the scientific requirements of the X-ray detectors, and their proper operation over the life of the mission is essential for the success of the experimental activity. We studied thin sandwich membranes made of silicon nitride and aluminum as optical blocking filters for high-energy detectors in space missions. Here, we report the results of a multi-technique characterization of SiN membranes with thicknesses in the range from 40 nm to 145 nm coated with few tens of nanometers of aluminum on both sides. In particular, we have measured the X-ray transmission at synchrotron radiation beamlines, the rejection of ultraviolet, visible, and near-infrared radiation, the amount of native oxide on the aluminum surfaces by X-ray photoelectron spectroscopy, the morphology of the sample surfaces by atomic force microscopy, and the aging effects under proton irradiation.
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来源期刊
CiteScore
4.40
自引率
13.00%
发文量
119
期刊介绍: The Journal of Astronomical Telescopes, Instruments, and Systems publishes peer-reviewed papers reporting on original research in the development, testing, and application of telescopes, instrumentation, techniques, and systems for ground- and space-based astronomy.
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