A 350 GHz array of LEKIDs for balloon-borne CMB observations

We present the design, optimization and laboratory characterization of an array of Lumped Element Kinetic Inductance Detectors sensitive in a frequency band centered at 350 GHz. The array consists of 313 feed-horn coupled pixels with resonant frequencies spread over 250 MHz. We present measured yiel...

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Bibliographic Details
Published in:Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Main Authors: Cacciotti, F., Paiella, A., Avestruz, C., Tackur, R. Basu, Battistelli, E. S., de Bernardis, P., Bulbul, E., Columbro, F., Coppolecchia, A., Cray, S., D'Alessandro, G., De Petris, M., Hanany, S., Lamagna, L., Lau, E., Masi, S., Pettinari, G., Piacentini, F., Sayers, J., Zhuravleva, I., Zuhone, J.
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier 2024
Subjects:
OLIMPO
Kinetic inductance detector
Galaxy cluster
Antarctic
Antarc*
Online Access:https://hdl.handle.net/11573/1721060
https://doi.org/10.1016/j.nima.2024.169847
Description
Summary:We present the design, optimization and laboratory characterization of an array of Lumped Element Kinetic Inductance Detectors sensitive in a frequency band centered at 350 GHz. The array consists of 313 feed-horn coupled pixels with resonant frequencies spread over 250 MHz. We present measured yield, quality factor, responsivity, quasiparticle lifetime, noise equivalent power and optical efficiency. The array is a prototype for one of the four frequency bands of OLIMPO, a balloon-borne instrument with a 2.6 m primary mirror proposed for an Antarctic flight to measure the Sunyaev–Zel’dovich effect in clusters of galaxies and their connecting filaments. Similar arrays could also be used with instruments studying the polarization of the cosmic microwave background radiation.

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