Fowler, J.
, Doriese, W.
, Hilton, G.
, Irwin, K.
, Schmidt, D.
, Stiehl, G.
, Swetz, D.
, Ullom, J.
and Vale, L.
(2012),
Optimization and analysis of code-division multiplexed TES microcalorimeters, Journal of Low Temperature Physics, Heidelberg, -1, [online], https://doi.org/10.1007/s10909-012-0463-4
(Accessed April 19, 2024)
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Optimization and analysis of code-division multiplexed TES microcalorimeters
Published
Author(s)
, , , , , , , ,
Abstract
We are developing code-division multiplexing (CDM) readout systems for TES arrays for good scalability to large multiplexing factors. We report high energy resolution x-ray measurements made through four-channel CDM that employ a flux-summing architecture, emphasizing data analysis issues. We describe an empirical method to determine the demodulation matrix to minimize cross-talk. All resolutions are estimated with a full maximum-likelihood fit to energy histogram,avoiding the bias towards good resolution that arises in simpler chi-squared fits. The present CDM system has achieved energy resolutions of between 2.3 and 3.0 eV FWHM at 6 keV.Proceedings Title
Journal of Low Temperature Physics
Volume
167
Issue
5-6
Conference Dates
August 1-5, 2011
Conference Location
Heidelberg
Conference Title
Low Temperature Detectors 14
Pub Type
Conferences
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Keywords
SQUID multiplexers, transition edge sensors
Citation
Created January 20, 2012, Updated November 10, 2018