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/library/oar/handle/123456789/134659| Title: | Receiver design for the REACH global 21-cm signal experiment |
| Authors: | Roque, Ian L. V. Razavi-Ghods, Nima Carey, Steven H. Ely, John A. Handley, Will Magro, Alessio Chiello, Riccardo Huang, Tian Alexander, Paul Anstey, Dominic J. Bernardi, Gianni Bevins, Harry T.J. Cavillot, Jean Croukamp, W. Cumner, John M. de Lera Acedo, E. de Villiers, D. I. L. Fialkov, A. Gessey-Jones, T. Gueuning, Q. Josaitis, A. T. Kulkarni, G. Leeney, S. A. K. Maiolino, R. Meerburg, P. D. Mittal, S. Pagano, M. Pegwal, S. Pieterse, C. Pritchard, J. R. Saxena, A. Scheutwinkel, K. H. Scott, P. Shen, E. Sims, P. H. Smirnov, O. Spinelli, M. Zarb Adami, Kristian |
| Keywords: | Radio telescopes -- Design and construction Radiometers -- Design and construction Radio astronomy -- Instruments Radio astronomy -- Observations Epoch of reionization |
| Issue Date: | 2025 |
| Publisher: | Springer |
| Citation: | Roque, I. L., Razavi-Ghods, N., Carey, S. H., Ely, J. A., Handley, W., Magro, A.,...Zarb-Adami, K. (2025). Receiver design for the REACH global 21-cm signal experiment. Experimental Astronomy, 59(1), 1-30. |
| Abstract: | We detail the REACH radiometric system designed to enable measurements of the 21-cm neutral hydrogen line. Included is the radiometer architecture and end-to-end system simulations as well as a discussion of the challenges intrinsic to highlycalibratable system development. Following this, we share laboratory results based on the calculation of noise wave parameters utilising an over-constrained least squares approach. For five hours of integration on a custom-made source with comparable impedance to that of the antenna used in the field, we demonstrate a calibration RMSE of 80 mK. This paper therefore documents the state of the calibrator and data analysis in December 2022 in Cambridge before shipping to South Africa. |
| URI: | https://www.um.edu.mt/library/oar/handle/123456789/134659 |
| Appears in Collections: | Scholarly Works - InsSSA |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Receiver design for the REACH global 21 cm signal experiment 2025.pdf | 4.14 MB | Adobe PDF | View/Open |
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