POLARBEAR-2与Simons Array实验
天体物理仪器与方法
2016-02-17 v1 宇宙学与河外天体物理
摘要
我们介绍了POLARBEAR-2与Simons Array实验的设计与现状概述。POLARBEAR-2是一项宇宙微波背景偏振测量实验，旨在表征来自弱引力透镜的弧分角尺度B模式信号，并搜寻来自暴胀引力波的度角尺度B模式信号。接收机具有直径365~mm、冷却至270~milli-Kelvin的焦平面。焦平面布满7588个二色透镜天线耦合的偏振敏感过渡边缘传感器(TES)辐射热像素，同时敏感于95~GHz和150~GHz频段。TES辐射热计通过SQUID以40通道频域复用读取。折射光学元件由高纯氧化铝制成以实现高光学吞吐量。接收机设计在每个频段达到5.8~K的噪声等效温度。POLARBEAR-2将于2016年部署在智利阿塔卡马沙漠。Simons Array是一个通过部署三台POLARBEAR-2型接收机来进一步提高灵敏度的项目。Simons Array将覆盖95~GHz、150~GHz和220~GHz频段以进行前景控制。Simons Array将能够将张量标量比和中性微子质量总和限制在 (r=0.1时)以及至40 meV。
引用
@article{arxiv.1512.07299,
title = {The POLARBEAR-2 and the Simons Array Experiment},
author = {A. Suzuki and P. Ade and Y. Akiba and C. Aleman and K. Arnold and C. Baccigalupi and B. Barch and D. Barron and A. Bender and D. Boettger and J. Borrill and S. Chapman and Y. Chinone and A. Cukierman and M. Dobbs and A. Ducout and R. Dunner and T. Elleflot and J. Errard and G. Fabbian and S. Feeney and C. Feng and T. Fujino and G. Fuller and A. Gilbert and N. Goeckner-Wald and J. Groh and T. De Haan and G. Hall and N. Halverson and T. Hamada and M. Hasegawa and K. Hattori and M. Hazumi and C. Hill and W. Holzapfel and Y. Hori and L. Howe and Y. Inoue and F. Irie and G. Jaehnig and A. Jaffe and O. Jeong and N. Katayama and J. Kaufman and K. Kazemzadeh and B. Keating and Z. Kermish and R. Keskitalo and T. Kisner and A. Kusaka and M. Le Jeune and A. Lee and D. Leon and E. Linder and L. Lowry and F. Matsuda and T. Matsumura and N. Miller and K. Mizukami and J. Montgomery and M. Navaroli and H. Nishino and J. Peloton and D. Poletti and G. Rebeiz and C. Raum and C. Reichardt and P. Richards and C. Ross and K. Rotermund and Y. Segawa and B. Sherwin and I. Shirley and P. Siritanasak and N. Stebor and R. Stompor and J. Suzuki and O. Tajima and S. Takada and S. Takakura and S. Takatori and A. Tikhomirov and T. Tomaru and B. Westbrook and N. Whitehorn and T. Yamashita and A. Zahn and O. Zahn},
journal= {arXiv preprint arXiv:1512.07299},
year = {2016}
}
备注
Accepted to Journal of Low Temperature Physics LTD16 Special Issue, Low Temperature Detector 16 Conference Proceedings, 5 pages, 1 figure