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Resonator Stabilization Architecture to Suppress Switching Transient Crosstalk in I-CDM

Resonator Stabilization Architecture to Suppress Switching Transient Crosstalk in I-CDM The ever-increasing sizes of transition-edge sensor (TES) microcalorimeter arrays motivates improved multiplexed readout with large multiplexing factors, low power dissipation, and low levels of crosstalk. Current-summed code division multiplexing (I-CDM) has been proposed as an alternative to flux-summed code division multiplexing (Φ-CDM) because of its lower power dissipation and greater robustness against the failure of individual readout elements. Simulating I-CDM arrays, we find that unswitched circuit components provide a mechanism for crosstalk, the magnitude of which is determined by their inductance. To mitigate this source of crosstalk, we propose a technique called resonator-stabilized I-CDM (RI-CDM), which the simulations predict will reduce crosstalk by an order of magnitude. RI-CDM reads out dc-biased TESs on an amplitude-modulated carrier wave. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Low Temperature Physics Springer Journals

Resonator Stabilization Architecture to Suppress Switching Transient Crosstalk in I-CDM

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Publisher
Springer Journals
Copyright
Copyright © 2018 by This is a U.S. government work and its text is not subject to copyright protection in the United States; however, its text may be subject to foreign copyright protection
Subject
Physics; Condensed Matter Physics; Characterization and Evaluation of Materials; Magnetism, Magnetic Materials
ISSN
0022-2291
eISSN
1573-7357
DOI
10.1007/s10909-018-1971-7
Publisher site
See Article on Publisher Site

Abstract

The ever-increasing sizes of transition-edge sensor (TES) microcalorimeter arrays motivates improved multiplexed readout with large multiplexing factors, low power dissipation, and low levels of crosstalk. Current-summed code division multiplexing (I-CDM) has been proposed as an alternative to flux-summed code division multiplexing (Φ-CDM) because of its lower power dissipation and greater robustness against the failure of individual readout elements. Simulating I-CDM arrays, we find that unswitched circuit components provide a mechanism for crosstalk, the magnitude of which is determined by their inductance. To mitigate this source of crosstalk, we propose a technique called resonator-stabilized I-CDM (RI-CDM), which the simulations predict will reduce crosstalk by an order of magnitude. RI-CDM reads out dc-biased TESs on an amplitude-modulated carrier wave.

Journal

Journal of Low Temperature Physics – Springer Journals

Published: May 30, 2018

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