2022 upgrade and improved low frequency camera sensitivity for CMB observation at the South Pole
2022 upgrade and improved low frequency camera sensitivity for CMB observation at the South Pole
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2022年升级并提高了南极CMB观测的低频相机灵敏度
DOI：
10.1117/12.2628058
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Buza, V.
中科院分区：
文献类型：
--
作者：
Soliman, Ahmed;Ade, P.A.R.;Ahmed, Z.;Amiri, M.;Barkats, D.;Basu Thakur, R.;Bischoff, C.A.;Beck, D.;Bock, J.J.;Buza, V.
用多频宇宙微波背景（CMB）观测来约束银河系前景是最终达到测量原始引力波（PGW）的灵敏度的重要一步，原始引力波是大爆炸后的膨胀信号，将被印在CMB上。BICEP阵列是一组多频相机，旨在通过CMB B模式搜索来限制暴胀的能量尺度，同时也控制偏振的银河前景。自2020年以来，最低频率的BICEP阵列接收器（BA1）一直在南极进行观测，并提供30 GHz和40 GHz的数据来表征我们CMB地图中的银河系同步加速器。在本文中，我们提出了BA 1探测器的设计和相机的完整光学特性，包括在南极的天空性能。本文还介绍了在第一个观测季节的设计挑战，包括带外光子对探测器性能的影响。它还描述了为诊断这种影响而进行的测试，以及最大限度地减少这些光子的新升级，以及在2022年部署季节安装更多的二向色探测器以提高BA1的灵敏度。最后，我们报告背景噪声测量的探测器的目标是在两个光学通道中的光子噪声占主导地位的探测器。与上一个部署季节相比，BA1实现了映射速度的提高。
Constraining the Galactic foregrounds with multi-frequency Cosmic Microwave Background (CMB) observations is an essential step towards ultimately reaching the sensitivity to measure primordial gravitational waves (PGWs), the sign of inflation after the Big-Bang that would be imprinted on the CMB. The BICEP Array is a set of multi-frequency cameras designed to constrain the energy scale of inflation through CMB B-mode searches while also controlling the polarized galactic foregrounds. The lowest frequency BICEP Array receiver (BA1) has been observing from the South Pole since 2020 and provides 30 GHz and 40 GHz data to characterize galactic synchrotron in our CMB maps. In this paper, we present the design of the BA1 detectors and the full optical characterization of the camera including the on-sky performance at the South Pole. The paper also introduces the design challenges during the first observing season including the effect of out-of-band photons on detectors performance. It also describes the tests done to diagnose that effect and the new upgrade to minimize these photons, as well as installing more dichroic detectors during the 2022 deployment season to improve the BA1 sensitivity. We finally report background noise measurements of the detectors with the goal of having photon-noise dominated detectors in both optical channels. BA1 achieves an improvement in mapping speed compared to the previous deployment season.
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用于 BICEP 阵列实验的天线耦合 30/40 GHz 探测器和模块的设计和表征
DOI：
--
发表时间：
2019
期刊：
影响因子：
--
作者：
A. Soliman;P. Ade;Z. Ahmed;M. Amiri;D. Barkats;R. Thakur;C. Bischoff;J. Bock;H. Boenish;E. Bullock;V. Buza;J. Cheshire;J. Connors;J. Cornelison;M. Crumrine;A. Cukierman;M. Dierickx;L. Duband;S. Fatigoni;J. Filippini;G. Hall;M. Halpern;S. Harrison;S. Henderson;S. Hildebrandt;G. Hilton;H. Hui;K. Irwin;J. Kang;K. Karkare;E. Karpel;S. Kefeli;J. Kovac;C. Kuo;K. Lau;K. Megerian;L. Moncelsi;T. Namikawa;H. Nguyen;R. O’Brient;S. Palladino;N. Precup;C. Pryke;B. Racine;C. Reintsema;S. Richter;B. Schmitt;R. Schwarz;C. Sheehy;A. Schillaci;T. S. Germaine;B. Steinbach;R. Sudiwala;K. Thompson;C. Tucker;A. Turner;C. Umilta;A. Vieregg;A. Wandui;A. Weber;D. Wiebe;J. Willmert;W. L. K. Wu;E. Yang;K. Yoon;E. Young;C. Yu;C. Zhang
通讯作者：
C. Zhang
BICEP2/Keck 阵列 XI：BK15 数据集中的光束特征和温度-偏振泄漏
DOI：
10.3847/1538-4357/ab391d
发表时间：
2019
期刊：
The Astrophysical Journal
影响因子：
--
作者：
Ade, P. A.;Ahmed, Z.;Aikin, R. W.;Barkats, D.;Benton, S. J.;Bischoff, C. A.;Bock, J. J.;Bowens-Rubin, R.;Brevik, J. A.;Buder, I.
通讯作者：
Buder, I.
DOI：
10.3847/1538-4357/ac4886
发表时间：
2021-10
期刊：
The Astrophysical Journal
影响因子：
--
作者：
B. C. P. Ade;Z. Ahmed;M. Amiri;D. Barkats;R. Thakur;D. Beck;C. Bischoff;J. Bock;H. Boenish;E. Bullock;V. Buza;IV J.R.Cheshire;J. Connors;J. Cornelison;M. Crumrine;A. Cukierman;E. Denison;M. Dierickx;L. Duband;M. Eiben;S. Fatigoni;J. Filippini;S. Fliescher;N. Goeckner-wald;D. Goldfinger;J. Grayson;P. Grimes;G. Halal;G. Hall;M. Halpern;E. Hand;S. Harrison;S. Henderson;S. Hildebrandt;G. Hilton;J. Hubmayr;H. Hui;K. Irwin;J. Kang;K. Karkare;E. Karpel;S. Kefeli;S. Kernasovskiy;J. Kovac;C. Kuo;K. Lau;E. Leitch;A. Lennox;K. Megerian;L. Minutolo;L. Moncelsi;Y. Nakato;T. Namikawa;H. Nguyen;R. O’Brient;IV R.W.Ogburn;S. Palladino;T. Prouvé;C. Pryke;B. Racine;C. Reintsema;S. Richter;A. Schillaci;B. Schmitt;R. Schwarz;C. Sheehy;A. Soliman;T. S. Germaine;B. Steinbach;R. Sudiwala;G. Teply;K. Thompson;J. Tolan;C. Tucker;A. Turner;C. Umilta;C. Vergés;A. Vieregg;A. Wandui;A. Weber;D. Wiebe;J. Willmert;C. L. Wong;W.L.K. Wu;H. Yang;K. Yoon;E. Young;C. Yu;L. Zeng;C. Zhang;S. University;Kipacslac;U. Columbia;HarvardCfA;Caltech;U. Cincinnati;S. University;Nasa Jpl;M. I. O. Astrophysics;U. Chicago;U. Minnesota;Nist;Sbt Grenoble;U. I. Urbana-Champaign;H. University;T. U. O. Tokyo;Aix-Marseille Université;Brookhaven National Laboratory
通讯作者：
B. C. P. Ade;Z. Ahmed;M. Amiri;D. Barkats;R. Thakur;D. Beck;C. Bischoff;J. Bock;H. Boenish;E. Bullock;V. Buza;IV J.R.Cheshire;J. Connors;J. Cornelison;M. Crumrine;A. Cukierman;E. Denison;M. Dierickx;L. Duband;M. Eiben;S. Fatigoni;J. Filippini;S. Fliescher;N. Goeckner-wald;D. Goldfinger;J. Grayson;P. Grimes;G. Halal;G. Hall;M. Halpern;E. Hand;S. Harrison;S. Henderson;S. Hildebrandt;G. Hilton;J. Hubmayr;H. Hui;K. Irwin;J. Kang;K. Karkare;E. Karpel;S. Kefeli;S. Kernasovskiy;J. Kovac;C. Kuo;K. Lau;E. Leitch;A. Lennox;K. Megerian;L. Minutolo;L. Moncelsi;Y. Nakato;T. Namikawa;H. Nguyen;R. O’Brient;IV R.W.Ogburn;S. Palladino;T. Prouvé;C. Pryke;B. Racine;C. Reintsema;S. Richter;A. Schillaci;B. Schmitt;R. Schwarz;C. Sheehy;A. Soliman;T. S. Germaine;B. Steinbach;R. Sudiwala;G. Teply;K. Thompson;J. Tolan;C. Tucker;A. Turner;C. Umilta;C. Vergés;A. Vieregg;A. Wandui;A. Weber;D. Wiebe;J. Willmert;C. L. Wong;W.L.K. Wu;H. Yang;K. Yoon;E. Young;C. Yu;L. Zeng;C. Zhang;S. University;Kipacslac;U. Columbia;HarvardCfA;Caltech;U. Cincinnati;S. University;Nasa Jpl;M. I. O. Astrophysics;U. Chicago;U. Minnesota;Nist;Sbt Grenoble;U. I. Urbana-Champaign;H. University;T. U. O. Tokyo;Aix-Marseille Université;Brookhaven National Laboratory
30/40 GHz BICEP 阵列探测器模块宽带波纹壁的设计和性能
DOI：
10.1117/12.2312942
发表时间：
2018
期刊：
SPIE
影响因子：
--
作者：
Soliman, Ahmed;Benton, Steve J.;Bischoff, Colin A.;Bock, James J.;Bullock, Eric;Dvorkin, Cora;Filippini, Jeff P.;Fliescher, Stefan;Grayson, James A.;Halpern, Mark
通讯作者：
Halpern, Mark
BICEP 阵列：多频度尺度 CMB 旋光计
DOI：
10.1117/12.2311725
发表时间：
2018
期刊：
SPIE
影响因子：
--
作者：
Hui, Howard;Ade, P. A.;Ahmed, Zeeshan;Aikin, Randol;Alexander, Kate D.;Barkats, Denis;Benton, Steve J.;Bischoff, Colin A.;Bock, James J.;Bowens-Rubin, Rachel
通讯作者：
Bowens-Rubin, Rachel