We describe the deployment and first tests on Sky of CONCERTO, a large field-of-view (18.6arc-min) spectral-imaging instrument. The instrument operates in the range 130-310GHz from the APEX 12-meters telescope located at 5100m a.s.l. on the Chajnantor plateau. Spectra with R=1-300 are obtained using a fast (2.5Hz mechanical frequency) Fourier Transform Spectrometer (FTS), coupled to a continuous dilution cryostat with a base temperature of 60mK. Two 2152-pixels arrays of Lumped Element Kinetic Inductance Detectors (LEKID) are installed in the cryostat that also contains the cold optics and the front-end electronics. CONCERTO, installed in April 2021, generates more than 20k spectra per second during observations. We describe the final development phases, the installation and the first results obtained on Sky.
@article{arxiv.2106.14028,
title = {CONCERTO at APEX: installation and technical commissioning},
author = {A. Monfardini and A. Beelen and A. Benoit and J. Bounmy and M. Calvo and A. Catalano and J. Goupy and G. Lagache and P. Ade and E. Barria and M. Bethermin and O. Bourrion and G. Bres and C. De Breuck and F. -X. Desert and G. Duvauchelle and A. Fasano and T. Fenouillet and J. Garcia and G. Garde and C. Hoarau and W. Hu and J. -C. Lambert and F. Levy-Bertrand and A. Lundgren and J. Macias-Perez and J. Marpaud and G. Pisano and N. Ponthieu and L. Prieur and S. Roni and S. Roudier and D. Tourres and C. Tucker and M. Cantzler and P. Caro and M. Diaz and C. Duran and F. Montenegro and M. Navarro and R. Olguin and F. Palma and R. Parra and J. Santana},
journal= {arXiv preprint arXiv:2106.14028},
year = {2022}
}
Comments
Submitted to JLTP, Proceedings if the Low Temperature Detectors 19 conference, NIST, 2021