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首页> 外文期刊>Journal of Materials Engineering and Performance >Development of Multifunctional Thin Film Based X-Ray Intensity Filters for Space-Based Payloads
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Development of Multifunctional Thin Film Based X-Ray Intensity Filters for Space-Based Payloads

机译：基于空间的有效载荷的多功能薄膜基于多功能薄膜的X射线强度滤波器的研制

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We report the development, thorough characterizations and space worthiness studies of multifunctional aluminized film as x-ray intensity filter for space-based payloads, suitably designed to place in Sun-Earth Lagrangian (L1) point. The L1 point is the ideal location for uninterrupted observation of Sun to study the solar flares in hard x-rays. For our specific purpose, we make use of two different types of x-ray detectors (e.g., CdTe and CZT) which are generally used for hard x-ray studies in the energy band of 5 to 200 keV. Further, these aforesaid two detectors require specified thermal control characteristic for optimal performance. Aluminization of Kapton films is proposed which would satisfy the thermo-optical and x-ray transmission requirements of the proposed payload. The developed aluminized films are thoroughly studied by field emission scanning electron microscopy and atomic force microscopy techniques for micro-structural characteristic, x-ray diffraction for phase purity, nanoindentation for mechanical integrity at micro-structural length scale and spectrophotometer for thermo-optical properties. X-ray transmission test is carried out with two radioactive sources, namely Fe-55 and Am-241, with various aluminized Kapton layer combinations. Finally, space worthiness of the aluminized Kapton films is examined by accelerated environments, e.g. humidity, thermal cycling and thermo-vacuum tests.
机译：我们报告了多功能铝化薄膜作为X射线强度滤波器的开发，全面的特征和空间值得研究，适用于基于空间的有效载荷，适当地设计用于放置在太阳地球拉格朗日（L1）点。 L1点是不间断观察太阳观察的理想位置，以研究硬X射线的太阳耀斑。出于我们的特定目的，我们使用两种不同类型的X射线探测器（例如，CDTE和CZT），其通常用于5至200keV的能带中的硬X射线研究。此外，这些上述两个检测器需要指定的热控制特性以获得最佳性能。提出了Kapton薄膜的铝化，这将满足所提出的有效载荷的热光和X射线传输要求。通过现场发射扫描电子显微镜和原子力显微镜技术彻底研究了开发的铝化膜，用于微结构特征，用于相纯度的X射线衍射，微结构长度尺度的机械完整性的纳米狭窄和热光学性能的分光光度计。 X射线传输测试用两个放射源，即Fe-55和AM-241进行，具有各种铝化的Kapton层组合。最后，通过加速环境检查镀铝膜膜的空间值得注意的环境。湿度，热循环和热真空测试。

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