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- Title
Design of the SPT-SLIM Focal Plane: A Spectroscopic Imaging Array for the South Pole Telescope.
- Authors
Barry, P. S.; Anderson, A.; Benson, B.; Carlstrom, J. E.; Cecil, T.; Chang, C.; Dobbs, M.; Hollister, M.; Karkare, K. S.; Keating, G. K.; Marrone, D.; McMahon, J.; Montgomery, J.; Pan, Z.; Robson, G.; Rouble, M.; Shirokoff, E.; Smecher, G.
- Abstract
The Summertime Line Intensity Mapper (SLIM) is a mm-wave line-intensity mapping (mm-LIM) experiment for the South Pole Telescope (SPT). The goal of SPT-SLIM is to serve as a technical and scientific pathfinder for the demonstration of the suitability and in-field performance of multi-pixel superconducting filterbank spectrometers for future mm-LIM experiments. Scheduled to deploy in the 2023-24 austral summer, the SPT-SLIM focal plane will include 18 dual-polarisation pixels, each coupled to an R = λ / Δ λ = 300 thin-film microstrip filterbank spectrometer that spans the 2 mm atmospheric window (120–180 GHz). Each individual spectral channel feeds a microstrip-coupled lumped-element kinetic inductance detector, which provides the highly multiplexed readout for the 10k detectors needed for SPT-SLIM. Here, we present an overview of the preliminary design of key aspects of the SPT-SLIM focal plane array, a description of the detector architecture and predicted performance, and initial test results that will be used to inform the final design of the SPT-SLIM spectrometer array.
- Subjects
FOCAL planes; FOCAL plane arrays sensors; TELESCOPES; SPECTROSCOPIC imaging
- Publication
Journal of Low Temperature Physics, 2022, Vol 209, Issue 5/6, p879
- ISSN
0022-2291
- Publication type
Article
- DOI
10.1007/s10909-022-02843-4