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arXiv 0910.0488astro-ph.IM
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软gamma-ray光学器件:新劳厄透镜设计和性能评估

Soft gamma-ray optics: new Laue lens design and performance estimates

N. Barriere, L. Natalucci, N. Abrosimov, P. von Ballmoos, P. Bastie, P. Courtois, M. Jentschel, J. Knodlseder, J. Rousselle, P. Ubertini

摘要:

劳厄透镜是一种基于晶体衍射的新兴技术,可以集中软伽马射线。这种工作在100 keV - 1.5 MeV波段的光学器件可用于实现高灵敏度和高角分辨率的望远镜(在窄视场中)。本文综述了近年来在高效晶体的研制、劳厄透镜的设计研究和模型化方面所取得的进展。以100 keV - 600 keV波段20 m焦距透镜聚焦的新概念为例,介绍了基于劳厄透镜的望远镜的性能。该镜头在每个子能量范围内使用最有效的镶嵌晶体,以产生最大的反射率。成像能力进行了调查,并显示出可喜的成果。

英文摘要:

Laue lenses are an emerging technology based on diffraction in crystals that allows the concentration of soft gamma rays. This kind of optics that works in the 100 keV - 1.5 MeV band can be used to realize an high-sensitivity and high-angular resolution telescope (in a narrow field of view). This paper reviews the recent progresses that have been done in the development of efficient crystals, in the design study and in the modelisation of the answer of Laue lenses. Through the example of a new concept of 20 m focal length lens focusing in the 100 keV - 600 keV band, the performance of a telescope based on a Laue lens is presented. This lens uses the most efficient mosaic crystals in each sub-energy range in order to yield the maximum reflectivity. Imaging capabilities are investigated and shows promising results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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