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arXiv · 1110.2531

Optimization and analysis of code-division multiplexed TES microcalorimeters

J. W. Fowler·W. B. Doriese·G. C. Hilton·K. D. Irwin·D. R. Schmidt·G. M. Stiehl·D. S. Swetz·J. N. Ullom·L. R. Vale.
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Abstract

We are developing code-division multiplexing (CDM) systems for transition-edge sensor arrays with the goal of reaching multiplexing factors in the hundreds. We report on x-ray measurements made with a four-channel prototype CDM system that employs a flux-summing architecture, emphasizing data-analysis issues. We describe an empirical method to determine the demodulation matrix that minimizes cross-talk. This CDM system achieves energy resolutions of between 2.3 eV and 3.0 eV FWHM at 5.9 keV.

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J. W. Fowler, W. B. Doriese, G. C. Hilton, K. D. Irwin, D. R. Schmidt, G. M. Stiehl, D. S. Swetz, J. N. Ullom, L. R. Vale.. 2011-10-11. Optimization and analysis of code-division multiplexed TES microcalorimeters. https://doi.org/10.1007/s10909-012-0463-4

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