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A Predictive Control Algorithm for Time-Division-Multiplexed Readout of TES Microcalorimeters.
- Source :
-
Journal of Low Temperature Physics . Apr2020, Vol. 199 Issue 1/2, p275-280. 6p. - Publication Year :
- 2020
-
Abstract
- Time division multiplexing (TDM) uses a digital flux-locked loop (DFLL) to linearize each first-stage SQUID amplifier. Presently, the dynamic range of our TDM systems is limited by the use of a proportional-integral controller to maintain the DFLL. In this paper, we use simulations to assess the improvements possible with a predictive control algorithm that anticipates rapid changes in transition-edge sensor current during the rising edge of an X-ray pulse. We calculate that the predictive control algorithm can improve our TDM architecture's dynamic range by 35%. This significant increase in multiplexing capabilities could be used to read out higher-energy X-rays, reduce readout noise, increase multiplexing factors, or reduce SQUID power output. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CALORIMETERS
*ALGORITHMS
*MULTIPLEXING
*SQUIDS
*DETECTORS
Subjects
Details
- Language :
- English
- ISSN :
- 00222291
- Volume :
- 199
- Issue :
- 1/2
- Database :
- Academic Search Index
- Journal :
- Journal of Low Temperature Physics
- Publication Type :
- Academic Journal
- Accession number :
- 142665204
- Full Text :
- https://doi.org/10.1007/s10909-020-02342-4