宽带可调gamma-ray透镜
Wide band, tunable gamma-ray lenses
摘要：
本文提出了一种在兆电子伏能区建造天文望远镜的新概念。该概念建立在晶体布拉格衍射的基础上，过去曾讨论过这一点，但到目前为止，在宽能量范围内具有良好灵敏度的设计似乎遥不可及。在本文中，我们指出，如果我们找到方法来调整，在轨道上，在透镜中的所有晶体的个人倾斜，这将允许一个单一的透镜，以良好的效率，覆盖从200千电子伏到2.5兆电子伏的全部范围内的能量在几个观察步骤。其次，我们注意到使用具有双晶体层的透镜将显著增加光子收集。在随附的论文中，我们更详细地描述了我们的整体镜头设计，并提出了我们的第一个原型倾斜调整基座与个别镜头面使用。Keyords：Gamma ray astronomy，Telescope technology，Laue lenses
英文摘要：
A new concept for an astronomical telescope in the MeV energy band is presented. The concept builds on Bragg diffraction in crystals, which has been discussed in the past, but so far a design with good sensitivity over a wide energy range has seemed out of reach. In this paper we point out that if we find ways to adjust, in orbit, the individual tilt of all the crystals in the lens this would allow one single lens to cover with excellent efficiency the full range of energies from 200 keV to 2.5 MeV in a few observation steps. Secondly, we note that the use of lenses with double crystal layers will increase the photon collection significantly. In an accompanying paper we describe our overall lens design in more detail and present our first prototype tilt adjustment pedestal for use with the individual lens facets. Keyords: Gamma-ray astronomy, Telescope technology, Laue lenses
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