Tuning of kilopixel transition edge sensor bolometer arrays with a digital frequency multiplexed readout system

Kevin MacDermid, Peter Hyland, Francois Aubin, Eric Bissonnette, Matt Dobbs, Johannes Hubmayr, Graeme Smecher, Shahjahen Wairrach

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

A digital frequency multiplexing (DfMUX) system has been developed and used to tune large arrays of transition edge sensor (TES) bolometers read out with SQUID arrays for mm-wavelength cosmology telescopes. The DfMUX system multiplexes the input bias voltages and output currents for several bolometers on a single set of cryogenic wires. Multiplexing reduces the heat load on the camera's sub-Kelvin cryogenic detector stage. In this paper we describe the algorithms and software used to set up and optimize the operation of the bolometric camera. The algorithms are implemented on soft processors embedded within FPGA devices operating on each backend readout board. The result is a fully parallelized implementation for which the setup time is independent of the array size.

Original languageEnglish (US)
Title of host publicationLow Temperature Detectors LTD-13 - Proceedings of the 13th International Workshop
Pages253-256
Number of pages4
DOIs
StatePublished - Dec 1 2009
Event13th International Workshop on Low Temperature Detectors, LTD-13 - Stanford, CA, United States
Duration: Jul 20 2009Jul 24 2009

Publication series

NameAIP Conference Proceedings
Volume1185
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other13th International Workshop on Low Temperature Detectors, LTD-13
CountryUnited States
CityStanford, CA
Period7/20/097/24/09

Keywords

  • Bolometers
  • Parallelization
  • Squids
  • Tuning

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    MacDermid, K., Hyland, P., Aubin, F., Bissonnette, E., Dobbs, M., Hubmayr, J., Smecher, G., & Wairrach, S. (2009). Tuning of kilopixel transition edge sensor bolometer arrays with a digital frequency multiplexed readout system. In Low Temperature Detectors LTD-13 - Proceedings of the 13th International Workshop (pp. 253-256). (AIP Conference Proceedings; Vol. 1185). https://doi.org/10.1063/1.3292326