A Spread-Spectrum SQUID Multiplexer

Irwin, K. D.; Chaudhuri, S.; Cho, H. -M.; Dawson, C.; Kuenstner, S.; Li, D.; Titus, C. J.; Young, B. A.

doi:10.1007/s10909-018-1987-z

A Spread-Spectrum SQUID Multiplexer

Journal Article · Tue Jun 12 00:00:00 EDT 2018 · Journal of Low Temperature Physics

DOI:https://doi.org/10.1007/s10909-018-1987-z· OSTI ID:1490477

^[1]; Chaudhuri, S. ^[2]; Cho, H. -M. ^[3]; Dawson, C. ^[2]; Kuenstner, S. ^[2]; Li, D. ^[3]; Titus, C. J. ^[2]; Young, B. A. ^[2]

SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States)
Stanford Univ., CA (United States)
SLAC National Accelerator Lab., Menlo Park, CA (United States)

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.

Research Organization:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

Grant/Contract Number:: AC02-76SF00515

OSTI ID:: 1490477

Alternate ID(s):: OSTI ID: 22809861

Journal Information:: Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 3-4 Vol. 193; ISSN 0022-2291

Publisher:: Plenum PressCopyright Statement

Country of Publication:: United States

Language:: English

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