Back to Search Start Over

Mitigation of Finite Bandwidth Effects in Time-Division-Multiplexed SQUID Readout of TES Arrays

Authors :
Malcolm Durkin
Joseph S. Adams
Simon R. Bandler
James A. Chervenak
Edward V. Denison
William B. Doriese
Shannon M. Duff
Fred M. Finkbeiner
Joseph W. Fowler
Johnathon D. Gard
Gene C. Hilton
Ruslan Hummatov
Kent D. Irwin
Young Il Joe
Richard L. Kelley
Caroline A. Kilbourne
Antoine R. Miniussi
Kelsey M. Morgan
Galen C. O'Neil
Christine G. Pappas
Frederick S. Porter
Carl D. Reintsema
David A. Rudman
Kazuhiro Sakai
Stephen James Smith
Robert W. Stevens
Daniel S. Swetz
Paul Szypryt
Joel N. Ullom
Leila R. Vale
Nicholas Wakeham
Source :
IEEE Transactions on Applied Superconductivity. 31(5)
Publication Year :
2021
Publisher :
United States: NASA Center for Aerospace Information (CASI), 2021.

Abstract

Time division multiplexing (TDM) is being developed as the readout technology of the X-ray integral field unit (X-IFU), a 3,168-pixel X-ray transition-edge sensor (TES) imaging spectrometer that is part of the European Space Agency's Athena satellite mission. Recent improvements in the low X-ray event count rate performance of TDM have been driven by increases in multiplexer bandwidth and the mitigation of settling transients. These methods and design changes have improved the 32-row multiplexed resolution of a NASA LPA 2.5a array from an initial (2.73 ± 0.03) eV to (1.97 ± 0.01) eV resolution at 5.9 keV. We discuss these recent advances in TDM readout, which have been implemented in an 8-column × 32-row spectrometer that will be deployed at the Lawrence Livermore National Laboratory electron beam ion trap (EBIT) facility, and present a model that will inform the design of future systems.

Details

Language :
English
ISSN :
15582515 and 10518223
Volume :
31
Issue :
5
Database :
NASA Technical Reports
Journal :
IEEE Transactions on Applied Superconductivity
Notes :
244904, , 80GSFC17C0003, , 80GSFC17M0002
Publication Type :
Report
Accession number :
edsnas.20210010976
Document Type :
Report
Full Text :
https://doi.org/10.1109/TASC.2021.3065279