AQUARIUS, the next generation mid-IR detector for ground-based astronomy
AQUARIUS, the next generation mid-IR detector for ground-based astronomy
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AQUARIUS，用于地面天文学的下一代中红外探测器
DOI：
10.1117/12.925844
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Joerg Steigmeier
中科院分区：
文献类型：
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作者：
D. Ives;G. Finger;G. Jakob;Siegfried Eschbaumer;L. Mehrgan;M. Meyer;Joerg Steigmeier
ESO最近资助了雷神视觉系统公司AQUARIUS探测器的开发，这是一种新的百万像素Si:As杂质带传导阵列，用于波长在3 - 28 μm之间的地面天文应用。该阵列被设计成具有低噪声，低暗电流，可切换增益和以非常高的帧速率读出。它有64个单独的输出，能够读取3MHz的像素速率，这意味着连续数据速率超过300 mb /秒。它计划于2012年部署到VLT的VISIR仪器中，用于下一代VLTI仪器和METIS的基线，METIS是E-ELT的中红外候选仪器。为AQUARIUS探测器开发开发了一种新的中红外测试设备，其中包括一个低热背景低温恒温器，高速低温预放大和高速数据采集，探测器在5K下运行。我们报告了这种新型检测器的所有主要性能方面，包括转换增益，读取噪声，黑暗产生率，线性度，井容量，像素可操作性，低频噪声，持久性和电串扰。我们描述了这种检测器的许多可能的读出模式及其应用。我们还报告了这些探测器在如此低温下运行的外部问题。最后，我们报告了在所需的高数据速率和典型的中红外仪器中操作这种探测器所需的电子发展。
ESO has recently funded the development of the AQUARIUS detector at Raytheon Vision Systems, a new mega-pixel Si:As Impurity Band Conduction array for use in ground based astronomical applications at wavelengths between 3 – 28 μm. The array has been designed to have low noise, low dark current, switchable gain and be read out at very high frame rates. It has 64 individual outputs capable of pixel read rates of 3MHz, implying continuous data-rates in excess of 300 Mbytes/second. It is scheduled for deployment into the VISIR instrument at the VLT in 2012, for next generation VLTI instruments and base-lined for METIS, the mid-IR candidate instrument for the E-ELT. A new mid-IR test facility has been developed for AQUARIUS detector development which includes a low thermal background cryostat, high speed cryogenic pre-amplification and high speed data acquisition and detector operation at 5K. We report on all the major performance aspects of this new detector including conversion gain, read noise, dark generation rate, linearity, well capacity, pixel operability, low frequency noise, persistence and electrical cross-talk. We describe the many possible readout modes of this detector and their application. We also report on external issues with the operation of these detectors at such low temperatures. Finally we report on the electronic developments required to operate such a detector at the required high data rates and in a typical mid-IR instrument.