Si:As IBC array performance for SIRTF/IRAC
Si:As IBC array performance for SIRTF/IRAC
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Si：作为 SIRTF/IRAC 的 IBC 阵列性能
DOI：
10.1117/12.406573
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
M. Jhabvala
中科院分区：
文献类型：
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作者：
R. Mcmurray;Roy R. Johnson;C. Mccreight;M. Mckelvey;J. Garnett;A. Hoffman;N. Lum;W. Lum;Michael S. Smith;K. Sparkman;Andrew G. Toth;G. Domingo;D. Krebs;M. Jhabvala
在SIRTF的低温望远镜环境中实现背景受限性能的目标对焦平面灵敏度提出了严格的要求。SIRTF的主要成像仪器红外阵列相机(IRAC)采用256 X 256 Si：As杂质带传导(IBC)阵列，用于5.8微米和8.0微米的两个最长波长通道。利用雷神公司的低温优化读数和探测器技术，在极低水平的黄道背景辐射下实现了背景受限的性能。这里介绍了IRAC飞行候选IBC阵列的性能测量。这些器件在6K温度下工作，满足所有IRAC灵敏度要求，暗电流远低于10e-/S规范，福勒采样噪声电平为16e-，并且具有出色的光度稳定性。
The goal of achieving background-limited performance in SIRTF's cryogenic telescope environment places stringent demands on focal plane sensitivity. SIRTF's prime imaging instrument, the InfraRed Array Camera (IRAC), employs 256 X 256 Si:As Impurity-Band Conduction (IBC) arrays for its two longest wavelength channels at 5.8 micrometers and 8.0 micrometers . Background-limited performance is achieved at very low levels of zodiacal background radiation with cryo-optimized readout and detector technology from Raytheon. Presented here are performance measurements of IRAC flight candidate IBC arrays. Operating at a temperature of 6 K, these devices meet all IRAC sensitivity requirements, with dark currents well below the 10 e-/s specification, Fowler-sampled noise levels of 16 e-, and excellent photometric stability.