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arXiv 0901.1919astro-ph.IMphysics.ins-det
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用于高带宽频域读出复用的线性化SQUID阵列(LISA)

Linearized SQUID Array (LISA) for High Bandwidth Frequency-Domain Readout Multiplexing

T. Lanting, M. Dobbs, H. Spieler, A. T. Lee, Y. Yamamoto

摘要:

我们设计并演示了一个低温反馈线性化的超导量子干涉器件(SQUID)阵列。为了实现必要的环路增益,由三个单片100元件串联阵列构成300元件串联阵列SQUID。反馈电阻完成了从SQUID输出到输入线圈的环路。与包括室温放大器的SQUID磁通锁定回路相比,该线性化SQUID阵列(LISA)的短反馈路径允许显著更大的磁通锁定回路带宽。LISA的带宽、线性度、噪声性能和动态范围足以用于我们的目标应用:过渡边缘传感器测辐射热计的多路复用读出。

英文摘要:

We have designed and demonstrated a Superconducting Quantum Interference Device (SQUID) array linearized with cryogenic feedback. To achieve the necessary loop gain a 300 element series array SQUID is constructed from three monolithic 100-element series arrays. A feedback resistor completes the loop from the SQUID output to the input coil. The short feedback path of this Linearized SQUID Array (LISA) allows for a substantially larger flux-locked loop bandwidth as compared to a SQUID flux-locked loop that includes a room temperature amplifier. The bandwidth, linearity, noise performance, and dynamic range of the LISA are sufficient for its use in our target application: the multiplexed readout of transition-edge sensor bolometers.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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