Noise free detectors in the visible and infrared: implications for the design of next-generation AO systems and large telescopes

Noise free detectors in the visible and infrared: implications for the design of next-generation AO systems and large telescopes
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可见光和红外光中的无噪声探测器:对下一代 AO 系统和大型望远镜设计的影响

DOI:
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发表时间:
2003
期刊:
SPIE Astronomical Telescopes + Instrumentation
影响因子:
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通讯作者:
R. Tubbs
R. Tubbs
中科院分区:
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文献类型:
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作者:
C. Mackay;J. Baldwin;R. Tubbs

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本文旨在讨论无噪声CCD探测器在大型望远镜和仪器发展的三个重要领域的影响。这些是(1)CCD具有我们习惯于在CCD中看到的所有特性,现在即使在更高的像素速率下,也可以使读出噪声可以忽略不计(> 10 MHz),并将允许相当不同的方法来设计仪器,(2)地面衍射极限成像技术;被称为幸运天文学的望远镜,其中图像是以高速拍摄的,已被证明在各种不同的条件下工作,(3)关于如何将这些方法直接应用于更大直径的望远镜,以实现高分辨率成像和光谱学,而无需花费激光引导星或多共轭自适应光学的一些建议。
This paper is intended to discuss the impact of noiseless CCD detectors in three significant areas of the development of large telescopes and the instruments that go on them. These are (1) CCDs that have all the characteristics that we are used to seeing in CCDs can now be made with negligible readout noise even at higher pixel rates (> 10 MHz) and will allow rather different approaches to the design of instrument is generally, (2) the technique of achieving diffraction limited imaging in ground-based telescopes known as Lucky Astronomy in which images are taken at high speed has been demonstrated to work under a variety of different conditions and (3) some suggestions as to how these methods may be applied directly to much larger diameter telescopes in order to achieve high resolution imaging and spectroscopy without the expense of laser guide stars or multi-conjugate adaptive optics.