The SAFARI detector system

None, None; None, None; None, None; None, None; None, None; None, None; None, None; None, None; None, None; None, None; None, None; None, None

The SAFARI detector system

Conference Paper (2018)

Author(s)

Michael D. Audley (SRON–Netherlands Institute for Space Research)

Gert De Lange (SRON–Netherlands Institute for Space Research)

Jian Rong Gao (TU Delft - QN/Gao Lab, SRON–Netherlands Institute for Space Research)

Brian D. Jackson (SRON–Netherlands Institute for Space Research)

Richard A. Hijmering (SRON–Netherlands Institute for Space Research)

Marcel L. Ridder (SRON–Netherlands Institute for Space Research)

Marcel P. Bruijn (SRON–Netherlands Institute for Space Research)

Peter R. Roelfsema (SRON–Netherlands Institute for Space Research)

Peter A.R. Ade (Cardiff University)

Stafford Withington (University of Cambridge)

Charles M. Bradford (Jet Propulsion Lab, Pasadena, CA)

Neal A. Trappe (Maynooth University)

Research Group

QN/Gao Lab

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

DOI related publication

https://doi.org/10.1117/12.2313361 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:a6f89928-9991-4f51-9449-fce420f9c70b

More Info

expand_more

Publication Year

2018

Language

English

Research Group

QN/Gao Lab

Volume number

10708

Article number

107080K

ISBN (print)

9781510619692

Event

Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018 (2018-06-12 - 2018-06-15), Austin, United States

Downloads counter

278

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.