A Spread-Spectrum SQUID Multiplexer

被引：6

作者：

Irwin, K. D. ^{[1
,2
]}

Chaudhuri, S. ^{[1
]}

Cho, H. -M. ^{[2
]}

Dawson, C. ^{[1
]}

Kuenstner, S. ^{[1
]}

Li, D. ^{[2
]}

Titus, C. J. ^{[1
]}

Young, B. A. ^{[1
]}

机构：

[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

[2] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 2018年 / 193卷 / 3-4期

关键词：

TES; SQUID; Microwave SQUID; Spread spectrum; Multiplexing; ARRAYS; RESOLUTION;

D O I：

10.1007/s10909-018-1987-z

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The transition-edge sensor (TES) is a mature, high-resolution x-ray spectrometer technology that provides a much higher efficiency than dispersive spectrometers such as gratings and crystal spectrometers. As larger arrays are developed, time-division multiplexing schemes operating at MHz frequencies are being replaced by microwave SQUID multiplexers using frequency-division multiplexing at GHz frequencies. However, the multiplexing factor achievable with microwave SQUIDs is limited by the high slew rate on the leading edge of x-ray pulses. In this paper, we propose a new multiplexing scheme for high-slew-rate TES x-ray calorimeters: the spread-spectrum SQUID multiplexer, which has the potential to enable higher multiplexing factors, especially in applications with lower photon-arrival rates.

引用

页码：476 / 484

页数：9

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