The SAFARI detector system

Michael D. Audley, Gert De Lange, Jian Rong Gao, Brian D. Jackson, Richard A. Hijmering, Marcel L. Ridder, Marcel P. Bruijn, Peter R. Roelfsema, Peter A.R. Ade, Stafford Withington, Charles M. Bradford, Neal A. Trappe

    Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

    7 Citations (Scopus)

    Abstract

    We give an overview of the baseline detector system for SAFARI, the prime focal-plane instrument on board the proposed space infrared observatory, SPICA. SAFARI's detectors are based on superconducting Transition Edge Sensors (TES) to provide the extreme sensitivity (dark NEP≤2×10-19W/√Hz) needed to take advantage of SPICA's cold (<8 K) telescope. In order to read out the total of ∼3500 detectors we use frequency domain multiplexing (FDM) with baseband feedback. In each multiplexing channel, a two-stage SQUID preamplifier reads out 160 detectors. We describe the detector system and discuss some of the considerations that informed its design.

    Original languageEnglish
    Title of host publicationMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX
    EditorsJ. Zmuidzinas, J.-R. Gao
    PublisherSPIE
    Number of pages8
    Volume10708
    ISBN (Print)9781510619692
    DOIs
    Publication statusPublished - 2018
    EventMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018 - Austin, United States
    Duration: 12 Jun 201815 Jun 2018

    Conference

    ConferenceMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018
    CountryUnited States
    CityAustin
    Period12/06/1815/06/18

    Keywords

    • Far-Infrared Bolometer Array
    • Far-Infrared Spectrometer
    • Focal-Plane Array
    • Frequency Domain Multiplexing
    • Infrared Space Observatory
    • SAFARI
    • SPICA Transition Edge Sensor

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