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 language | English |
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Title of host publication | Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX |
Editors | J. Zmuidzinas, J.-R. Gao |
Publisher | SPIE |
Number of pages | 8 |
Volume | 10708 |
ISBN (Print) | 9781510619692 |
DOIs | |
Publication status | Published - 2018 |
Event | Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018 - Austin, United States Duration: 12 Jun 2018 → 15 Jun 2018 |
Conference
Conference | Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018 |
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Country/Territory | United States |
City | Austin |
Period | 12/06/18 → 15/06/18 |
Keywords
- Far-Infrared Bolometer Array
- Far-Infrared Spectrometer
- Focal-Plane Array
- Frequency Domain Multiplexing
- Infrared Space Observatory
- SAFARI
- SPICA Transition Edge Sensor