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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2307.00099 |
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| _version_ | 1866909459261947904 |
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| author | Roque, Ian L. V. Razavi-Ghods, Nima Carey, Steven H. Ely, John A. Handley, Will Magro, Alessio Chiello, Riccardo Huang, Tian Alexander, P. Anstey, D. Bernardi, G. Bevins, H. T. J. Cavillot, J. Croukamp, W. Cumner, J. Acedo, E. de Lera 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, K. |
| author_facet | Roque, Ian L. V. Razavi-Ghods, Nima Carey, Steven H. Ely, John A. Handley, Will Magro, Alessio Chiello, Riccardo Huang, Tian Alexander, P. Anstey, D. Bernardi, G. Bevins, H. T. J. Cavillot, J. Croukamp, W. Cumner, J. Acedo, E. de Lera 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, K. |
| contents | We detail the 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 highly-calibratable system development. Following this, we share laboratory results based on the calculation of noise wave parameters utilising an over-constrained least squares approach demonstrating a calibration RMSE of 80 mK for five hours of integration on a custom-made source with comparable impedance to that of the antenna used in the field. This paper therefore documents the state of the calibrator and data analysis in December 2022 in Cambridge before shipping to South Africa. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2307_00099 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Receiver design for the REACH global 21-cm signal experiment Roque, Ian L. V. Razavi-Ghods, Nima Carey, Steven H. Ely, John A. Handley, Will Magro, Alessio Chiello, Riccardo Huang, Tian Alexander, P. Anstey, D. Bernardi, G. Bevins, H. T. J. Cavillot, J. Croukamp, W. Cumner, J. Acedo, E. de Lera 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, K. Instrumentation and Methods for Astrophysics We detail the 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 highly-calibratable system development. Following this, we share laboratory results based on the calculation of noise wave parameters utilising an over-constrained least squares approach demonstrating a calibration RMSE of 80 mK for five hours of integration on a custom-made source with comparable impedance to that of the antenna used in the field. This paper therefore documents the state of the calibrator and data analysis in December 2022 in Cambridge before shipping to South Africa. |
| title | Receiver design for the REACH global 21-cm signal experiment |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2307.00099 |