Calibration Measurements of the BICEP3 and BICEP Array CMB Polarimeters from 2017 to 2024
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| Formato: | Preprint |
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2024
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| author | Giannakopoulos, Christos Vergès, Clara Ade, P. A. R. Ahmed, Zeeshan Amiri, Mandana Barkats, Denis Thakur, Ritoban Basu Bischoff, Colin A. Beck, Dominic Bock, James J. Boenish, Hans Buza, Victor Cheshire IV, James R. Connors, Jake Cornelison, James Crumrine, Michael Cukierman, Ari Jozef Denison, Edward Dierickx, Marion Duband, Lionel Eiben, Miranda Elwood, Brodi D. Fatigoni, Sofia Filippini, Jeff P. Fortes, Antonio Gao, Min Goeckner-Wald, Neil Goldfinger, David C. Grayson, James A. Grimes, Paul K. Hall, Grantland Halal, George Halpern, Mark Hand, Emma Harrison, Sam A. Henderson, Shawn Hubmayr, Johannes Hui, Howard Irwin, Kent D. Kang, Jae Hwan Karkare, Kirit S. Kefeli, Sinan Kovac, J. M. Kuo, Chao-Lin Lau, King Lautzenhiser, Margaret Lennox, Amber Liu, Tongtian Megerian, Koko G. Miller, Oliver Minutolo, Lorenzo Moncelsi, Lorenzo Nakato, Yuka Nguyen, H. T. O'brient, Roger Patel, Anika Petroff, Matthew A. Polish, Anna R. Precup, Nathan Prouve, Thomas Pryke, Clement Reintsema, Carl D. Romand, Thibault Salatino, Maria Schillaci, Alessandro Schmitt, Benjamin Singari, Baibhav Soliman, Ahmed Germaine, Tyler St Steiger, Aaron Steinbach, Bryan Sudiwala, Rashmi Thompson, Keith L. Tsai, Calvin Tucker, Carole Turner, Anthony D. Vieregg, Abigail G. Wandui, Albert Weber, Alexis C. Willmert, Justin Wu, Wai Ling K. Yang, Hung-I Yu, Cyndia Zeng, Lingzhen Zhang, Cheng Zhang, Silvia |
| author_facet | Giannakopoulos, Christos Vergès, Clara Ade, P. A. R. Ahmed, Zeeshan Amiri, Mandana Barkats, Denis Thakur, Ritoban Basu Bischoff, Colin A. Beck, Dominic Bock, James J. Boenish, Hans Buza, Victor Cheshire IV, James R. Connors, Jake Cornelison, James Crumrine, Michael Cukierman, Ari Jozef Denison, Edward Dierickx, Marion Duband, Lionel Eiben, Miranda Elwood, Brodi D. Fatigoni, Sofia Filippini, Jeff P. Fortes, Antonio Gao, Min Goeckner-Wald, Neil Goldfinger, David C. Grayson, James A. Grimes, Paul K. Hall, Grantland Halal, George Halpern, Mark Hand, Emma Harrison, Sam A. Henderson, Shawn Hubmayr, Johannes Hui, Howard Irwin, Kent D. Kang, Jae Hwan Karkare, Kirit S. Kefeli, Sinan Kovac, J. M. Kuo, Chao-Lin Lau, King Lautzenhiser, Margaret Lennox, Amber Liu, Tongtian Megerian, Koko G. Miller, Oliver Minutolo, Lorenzo Moncelsi, Lorenzo Nakato, Yuka Nguyen, H. T. O'brient, Roger Patel, Anika Petroff, Matthew A. Polish, Anna R. Precup, Nathan Prouve, Thomas Pryke, Clement Reintsema, Carl D. Romand, Thibault Salatino, Maria Schillaci, Alessandro Schmitt, Benjamin Singari, Baibhav Soliman, Ahmed Germaine, Tyler St Steiger, Aaron Steinbach, Bryan Sudiwala, Rashmi Thompson, Keith L. Tsai, Calvin Tucker, Carole Turner, Anthony D. Vieregg, Abigail G. Wandui, Albert Weber, Alexis C. Willmert, Justin Wu, Wai Ling K. Yang, Hung-I Yu, Cyndia Zeng, Lingzhen Zhang, Cheng Zhang, Silvia |
| contents | The BICEP3 and BICEP Array polarimeters are small-aperture refracting telescopes located at the South Pole designed to measure primordial gravitational wave signatures in the Cosmic Microwave Background (CMB) polarization, predicted by inflation. Constraining the inflationary signal requires not only excellent sensitivity, but also careful control of instrumental systematics. Both instruments use antenna-coupled orthogonally polarized detector pairs, and the polarized sky signal is reconstructed by taking the difference in each detector pair. As a result, the differential response between detectors within a pair becomes an important systematic effect we must control. Additionally, mapping the intensity and polarization response in regions away from the main beam can inform how sidelobe levels affect CMB measurements. Extensive calibration measurements are taken in situ every austral summer for control of instrumental systematics and instrument characterisation. In this work, we detail the set of beam calibration measurements that we conduct on the BICEP receivers, from deep measurements of main beam response to polarized beam response and sidelobe mapping. We discuss the impact of these measurements for instrumental systematics studies and design choices for future CMB receivers. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_16440 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Calibration Measurements of the BICEP3 and BICEP Array CMB Polarimeters from 2017 to 2024 Giannakopoulos, Christos Vergès, Clara Ade, P. A. R. Ahmed, Zeeshan Amiri, Mandana Barkats, Denis Thakur, Ritoban Basu Bischoff, Colin A. Beck, Dominic Bock, James J. Boenish, Hans Buza, Victor Cheshire IV, James R. Connors, Jake Cornelison, James Crumrine, Michael Cukierman, Ari Jozef Denison, Edward Dierickx, Marion Duband, Lionel Eiben, Miranda Elwood, Brodi D. Fatigoni, Sofia Filippini, Jeff P. Fortes, Antonio Gao, Min Goeckner-Wald, Neil Goldfinger, David C. Grayson, James A. Grimes, Paul K. Hall, Grantland Halal, George Halpern, Mark Hand, Emma Harrison, Sam A. Henderson, Shawn Hubmayr, Johannes Hui, Howard Irwin, Kent D. Kang, Jae Hwan Karkare, Kirit S. Kefeli, Sinan Kovac, J. M. Kuo, Chao-Lin Lau, King Lautzenhiser, Margaret Lennox, Amber Liu, Tongtian Megerian, Koko G. Miller, Oliver Minutolo, Lorenzo Moncelsi, Lorenzo Nakato, Yuka Nguyen, H. T. O'brient, Roger Patel, Anika Petroff, Matthew A. Polish, Anna R. Precup, Nathan Prouve, Thomas Pryke, Clement Reintsema, Carl D. Romand, Thibault Salatino, Maria Schillaci, Alessandro Schmitt, Benjamin Singari, Baibhav Soliman, Ahmed Germaine, Tyler St Steiger, Aaron Steinbach, Bryan Sudiwala, Rashmi Thompson, Keith L. Tsai, Calvin Tucker, Carole Turner, Anthony D. Vieregg, Abigail G. Wandui, Albert Weber, Alexis C. Willmert, Justin Wu, Wai Ling K. Yang, Hung-I Yu, Cyndia Zeng, Lingzhen Zhang, Cheng Zhang, Silvia Cosmology and Nongalactic Astrophysics Instrumentation and Methods for Astrophysics The BICEP3 and BICEP Array polarimeters are small-aperture refracting telescopes located at the South Pole designed to measure primordial gravitational wave signatures in the Cosmic Microwave Background (CMB) polarization, predicted by inflation. Constraining the inflationary signal requires not only excellent sensitivity, but also careful control of instrumental systematics. Both instruments use antenna-coupled orthogonally polarized detector pairs, and the polarized sky signal is reconstructed by taking the difference in each detector pair. As a result, the differential response between detectors within a pair becomes an important systematic effect we must control. Additionally, mapping the intensity and polarization response in regions away from the main beam can inform how sidelobe levels affect CMB measurements. Extensive calibration measurements are taken in situ every austral summer for control of instrumental systematics and instrument characterisation. In this work, we detail the set of beam calibration measurements that we conduct on the BICEP receivers, from deep measurements of main beam response to polarized beam response and sidelobe mapping. We discuss the impact of these measurements for instrumental systematics studies and design choices for future CMB receivers. |
| title | Calibration Measurements of the BICEP3 and BICEP Array CMB Polarimeters from 2017 to 2024 |
| topic | Cosmology and Nongalactic Astrophysics Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2409.16440 |