Upgrade and characterization of the OSIRIS imager detector
Upgrade and characterization of the OSIRIS imager detector
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OSIRIS 成像探测器的升级和表征
DOI：
10.1117/12.2313101
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
J. Lyke
中科院分区：
文献类型：
--
作者：
P. Arriaga;M. Fitzgerald;C. Johnson;J. Weiss;J. Lyke
仪器检测器的特性是评估仪器整体性能和能力的重要组成部分。我们介绍了我们的努力，以表征夏威夷- 2rg探测器在W. M.凯克天文台的OSIRIS仪器的成像仪组件。特别是，我们将报告检测器的读取噪声，暗电流，线性度和持久性。我们发现增益为2.16±0.34，与Teledyne报告的增益2.15很好地一致。检测器的最大读取噪声为23.4±1.3 e，随读取次数的增加而减小。我们发现检测器的暗电流上限小于0.021 e-/pix/s。探测器也是线性的1%水平到44,500 e-和5%水平到80,000 e-。测得最大井深为119,000 e-。
Characterization of an instrument’s detector is an essential part of assessing the overall performance and ca- pabilities of an instrument. We present our efforts to characterize the HAWAII-2RG detector on the imager component of the OSIRIS instrument at W. M. Keck Observatory. In particular, we will report the detector’s read noise, dark current, linearity, and persistence. We find a gain of 2.16 ± 0.34, in good agreement with Teledyne’s reported gain of 2.15. The maximum read noise of the detector is 23.4 ± 1.3 e- decreasing with an increasing number of reads. We find an upper limit on the dark current of the detector to be < 0.021 e-/pix/s. The detector is also linear to the 1% level up to 44,500 e- and to the 5% level at 80,000 e-. The maximum well depth is measured to be 119,000 e-.