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首页> 外文会议>Conference on Optical and Infrared Detectors for Astronomy; 20040621-20040622; Glasgow; GB >The MPIA detector system for the LBT instruments LUCIFER and LING-NIRVANA
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The MPIA detector system for the LBT instruments LUCIFER and LING-NIRVANA

机译：LBT仪器LUCIFER和LING-NIRVANA的MPIA检测器系统

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摘要

We describe the detector subsystem developed at MPIA to operate the Rockwell Hawaii-2 detectors used in the LUCIFER and LINC-NIRVANA instruments for the Large Binocular Telescope (LBT). To fully exploit the capabilities of the LBT, the detector subsystem must meet, especially in the; case of the low background applications foreseen for LUCIFER, very stringent requirements in terms of stability and read noise. A read-out electronics has been developed at MPIA, which is able to read the 32 outputs of the Hawaii-2 detector, as well as the 4 reference signals available in this chip. The noise figure associated to the electronics alone is negligible with respect to the intrinsic read noise of the detector, while the cloking patterns and the value of the bias voltages applied to the chip are optimized in order to maximize the signal to noise ratio in the different operating modes. We present the results of the tests performed with the LUCIFER science detector; in particular, we describe the main properties of the detector: read noise, dark current, linearity, and long term stability, and what are the read-out schemes foreseen for different observational modes. We discuss also how the reference outputs can be used in order to correct for thermal drifts, and how effective those outputs are in removing higher frequency noise components.
机译：我们描述了MPIA开发的探测器子系统，用于操作大型双筒望远镜（LBT）的LUCIFER和LINC-NIRVANA仪器中使用的Rockwell Hawaii-2探测器。为了充分利用LBT的功能，探测器子系统必须满足，尤其是在对于LUCIFER预期的低背景应用情况，在稳定性和读取噪声方面有非常严格的要求。 MPIA已开发出一种读出电子设备，它能够读取Hawaii-2检测器的32个输出以及该芯片中可用的4个参考信号。就检测器的固有读取噪声而言，仅与电子设备相关的噪声系数就可以忽略不计，同时优化了克隆模式和施加到芯片的偏置电压的值，以便在不同的情况下最大化信噪比。操作模式。我们介绍了使用LUCIFER科学探测器进行测试的结果；特别是，我们描述了探测器的主要特性：读取噪声，暗电流，线性度和长期稳定性，以及针对不同观察模式预见的读取方案是什么。我们还将讨论如何使用参考输出来校正热漂移，以及这些输出在消除高频噪声成分方面的有效性。

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