MRI: Development of a 150 GHz Receiver for the BICEP Array CMB Polarimeter

MRI：开发用于 BICEP 阵列 CMB 旋光计的 150 GHz 接收器

• 批准号: 1726917
• 负责人: James Bock
• 金额: $ 194.63万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-09-01 至 2023-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1726917&HistoricalAwards=false
• 关键词: MRI; Development; 150; GHz; Receiver

The current established cosmological model for a theory of the Big Bang leaves open the question of explaining how the entire observable Universe being spawned in a dramatic, exponential "inflation" of a sub-nuclear volume. Following this short inflationary period, the Universe continues to expand, but at a less rapid rate. It is believed that this violent space-time expansion would have produced primordial gravitational waves now propagating through the expanding universe, thus forming a cosmic gravitational-wave background (CGB) the amplitude of which measures the energy scale of inflation. The CGB imprints a faint signature in the polarization of the Cosmic Microwave Background (CMB), and detecting this polarization signature is arguably the most important goal in cosmology today. This award supports the development of a 150 GHz wide-field receiver for studying the CMB polarization as part of the BICEP Array multi-institutional experiment. The BICEP Array continues the BICEP program of CMB polarization measurements and will ultimately operate in six frequency bands at 30, 40, 95, 150, 220 and 270 GHz to measure and remove polarized emission from the Milky Way Galaxy and detect the long-sought primordial gravitational waves signal. The proposed MRI effort will: (a) provide a large leap in measurement capability at the critical 150 GHz frequency band as the new 150 GHz receiver will make CMB measurements 15 times more rapidly than a single Keck Array receiver in this band, representing the leading measurement capability at this frequency when fielded; (b) leverage NSF's current investment in developing the BICEP Array telescope mount, and its commitment to supporting BICEP Array logistics, fielding, operations, and data analysis through 2021; and (c) leverage existing private funding to construct 30/40 and 95 GHz receivers that will place tight constraints on galactic synchrotron emission at the appropriate level of sensitivity for the proposed 150 GHz instrument. This development is low-risk and incorporates significant technological advances reached recently with fabrication of larger detector arrays. The proposed BICEP Array program is a pathfinder towards the CMB-S4 initiative to build ultimate CMB polarization experiments, which will combine many (up to 5-10) CMB telescopes deployed at different locations.

当前为大爆炸理论的宇宙学模型留下了一个问题，即解释了如何以戏剧性的，指数的“通货膨胀”的亚核体积卵产生的整个可观察到的宇宙。在这个短期的通货膨胀期之后，宇宙继续扩大，但速度较差。据信，这种暴力的时空扩张将产生现在通过扩展的宇宙传播的原始引力波，从而形成宇宙引力波背景（CGB），其幅度可以测量通货膨胀的能量尺度。 CGB烙印在宇宙微波背景（CMB）的极化中具有微弱的特征，并且检测到这种极化标志可以说是当今宇宙学中最重要的目标。该奖项支持开发150 GHz宽场接收器，用于研究CMB极化，这是二头肌阵列多机构实验的一部分。二头肌阵列继续进行CMB极化测量的二头肌程序，并最终将在30、40、95、150、220和270 GHz的六个频带中运行，以测量银河系的测量和去除极化的发射，并检测到备受追求的原始引力引力信号。拟议的MRI工作将：（a）在关键的150 GHz频带上提供测量能力的大飞跃，因为新的150 GHz接收器将使CMB测量比该频带中的单个Keck阵列接收器速度高15倍，在此频率下代表该频率的领先测量能力； （b）利用NSF目前在开发二头肌阵列望远镜上的投资，及其致力于支持二头肌阵列物流，现场，操作和数据分析到2021年； （c）利用现有的私人资金来构建30/40和95 GHz接收器，这些接收器将对拟议的150 GHz仪器的适当敏感性水平放置银河同步加速器发射的严格约束。这种发展是低风险的，并结合了最近制造较大的检测器阵列的重大技术进步。提出的二头肌阵列程序是通往CMB-S4计划的探路者，旨在构建最终的CMB偏振实验，该实验将结合许多（最高5-10）的CMB望远镜在不同位置部署的CMB望远镜。

项目成果

BICEP array cryostat and mount design

BICEP 阵列低温恒温器和安装设计

• DOI: 10.1117/12.2312829
• 发表时间: 2018
• 期刊: SPIE
• 作者: Crumrine, Michael;Ade, P.A.R.;Ahmed, Zeeshan;Aikin, Randol;Alexander, Kate D.;Barkats, Denis;Benton, Steve J.;Bischoff, Colin;Bock, James J.;Bowens-Rubin, Rachel
• 通讯作者: Bowens-Rubin, Rachel

2022 upgrade and improved low frequency camera sensitivity for CMB observation at the South Pole

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
• 发表时间: 2022
• 期刊: Proceedings of the SPIE
• 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.
• 通讯作者: Buza, V.

Optical Design and Characterization of 40-GHz Detector and Module for the BICEP Array

BICEP 阵列 40 GHz 探测器和模块的光学设计和表征

• DOI: 10.1007/s10909-019-02299-z
• 发表时间: 2020
• 期刊: Journal of Low Temperature Physics
• 影响因子: 2
• 作者: Soliman, A.;Ade, P. A.;Ahmed, Z.;Amiri, M.;Barkats, D.;Thakur, R. Basu;Bischoff, C. A.;Bock, J. J.;Boenish, H.;Bullock, E.
• 通讯作者: Bullock, E.

BICEP/ Keck XIV: Improved constraints on axionlike polarization oscillations in the cosmic microwave background

• DOI: 10.1103/physrevd.105.022006
• 发表时间: 2021-08
• 期刊: Physical Review D
• 影响因子: 5
• 作者: P. Ade;Z. Ahmed;M. Amiri;D. Barkats;R. Basu Thakur;C. Bischoff;D. Beck;J. Bock;H. Boenish;E. Bullock;V. Buza;J. 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. Hall;G. Halal;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. T. Nguyen-H. T.-Nguyen-2256593565;R. O’Brient;R. W. Ogburn;S. Palladino;T. Prouvé;C. Pryke;B. Racine;C. Reintsema;S. Richter;A. Schillaci;R. Schwarz;B. Schmitt;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. Wong;W. Wu;H. Yang;K. Yoon;E. Young;C. Yu;L. Zeng;C. Zhang;S. Zhang

BICEP2 / Keck Array IX: New bounds on anisotropies of CMB polarization rotation and implications for axionlike particles and primordial magnetic fields

• DOI: 10.1103/physrevd.96.102003
• 发表时间: 2017-05
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Keck Array;BICEP2 Collaborations P. A. R. Ade;Z. Ahmed;R. Aikin;K. Alexander;D. Barkats;S. Benton;C. Bischoff;J. Bock;R. Bowens-Rubin;J. Brevik;I. Buder;E. Bullock;V. Buza;J. Connors;B. Crill;L. Duband;C. Dvorkin;J. Filippini;S. Fliescher;T. S. Germaine;T. Ghosh;J. Grayson;S. Harrison;S. Hildebrandt;G. Hilton;H. Hui;K. Irwin;J. Kang;K. Karkare;E. Karpel;J. Kaufman;B. Keating;S. Kefeli;S. Kernasovskiy;J. Kovac;C. Kuo;N. Larsen;E. Leitch;K. Megerian;L. Moncelsi;T. Namikawa;C. Netterfield;H. Nguyen;R. O’Brient;IV R.W.Ogburn;C. Pryke;S. Richter;A. Schillaci;R. Schwarz;C. Sheehy;Z. Staniszewski;B. Steinbach;R. Sudiwala;G. Teply;K. Thompson;J. Tolan;C. Tucker;A. Turner;A. Vieregg;A. Weber;D. Wiebe;J. Willmert;C. L. Wong;W. L. K. Wu;K. Yoon