Matches in SemOpenAlex for { <https://semopenalex.org/work/W2905973503> ?p ?o ?g. }
- W2905973503 abstract "POLARBEAR-2 is a new receiver system, which will be deployed on the Simons Array telescope platform, for the measurement of Cosmic Microwave Background (CMB) polarization. The science goals with POLARBEAR-2 are to characterize the B-mode signal both at degree and sub-degree angular-scales. The degree-scale polarization data can be used for quantitative studies on inflation, such as the reconstruction of the energy scale of inflation. The sub-degree polarization data is an excellent tracer of large-scale structure in the universe, and will lead to precise constraints on the sum of the neutrino masses. In order to achieve these goals, POLARBEAR-2 employs 7588 polarization-sensitive antenna-coupled transition-edge sensor (TES) bolometers on the focal plane cooled to 0.27K with a three-stage Helium sorption refrigerator, which is ~6 times larger array over the current receiver system. The large TES bolometer array is read-out by an upgraded digital frequency-domain multiplexing system capable of multiplexing 40 bolometers through a single superconducting quantum interference device (SQUID). The first POLARBEAR-2 receiver, POLARBEAR-2A is constructed and the end-to-end testing to evaluate the integrated performance of detector, readout, and optics system is being conducted in the laboratory with various types of test equipments. The POLARBEAR-2A is scheduled to be deployed in 2018 at the Atacama desert in Chile. To further increase measurement sensitivity, two more POLARBEAR-2 type receivers will be deployed soon after the deployment (Simons Array project). The Simons Array will cover four frequency bands at 95GHz, 150GHz, 220GH and 270GHz for better control of the foreground signal. The projected constraints on a tensor-to-scalar ratio (amplitude of inflationary B-mode signal) is σ(r=0.1) = $6.0 times 10^{-3}$ after foreground removal ($4.0 times 10^{-3}$ (stat.)), and the sensitivity to the sum of the neutrino masses when combined with DESI spectroscopic galaxy survey data is 40 meV at 1-sigma after foreground removal (19 meV(stat.)). We will present an overview of the design, assembly and status of the laboratory testing of the POLARBEAR-2A receiver system as well as the Simons Array project overview." @default.
- W2905973503 created "2019-01-01" @default.
- W2905973503 creator A5003450545 @default.
- W2905973503 creator A5003813755 @default.
- W2905973503 creator A5004031732 @default.
- W2905973503 creator A5004576908 @default.
- W2905973503 creator A5006411685 @default.
- W2905973503 creator A5006530476 @default.
- W2905973503 creator A5006625619 @default.
- W2905973503 creator A5007381840 @default.
- W2905973503 creator A5008108917 @default.
- W2905973503 creator A5008169093 @default.
- W2905973503 creator A5009886964 @default.
- W2905973503 creator A5010843883 @default.
- W2905973503 creator A5010933752 @default.
- W2905973503 creator A5011851188 @default.
- W2905973503 creator A5013035399 @default.
- W2905973503 creator A5014339868 @default.
- W2905973503 creator A5015206324 @default.
- W2905973503 creator A5015942423 @default.
- W2905973503 creator A5017384427 @default.
- W2905973503 creator A5018475357 @default.
- W2905973503 creator A5018766207 @default.
- W2905973503 creator A5021149787 @default.
- W2905973503 creator A5022036149 @default.
- W2905973503 creator A5023829593 @default.
- W2905973503 creator A5024772654 @default.
- W2905973503 creator A5026323634 @default.
- W2905973503 creator A5028570747 @default.
- W2905973503 creator A5031620054 @default.
- W2905973503 creator A5031684424 @default.
- W2905973503 creator A5031818112 @default.
- W2905973503 creator A5032075386 @default.
- W2905973503 creator A5033116001 @default.
- W2905973503 creator A5034234794 @default.
- W2905973503 creator A5034501373 @default.
- W2905973503 creator A5036273397 @default.
- W2905973503 creator A5037667446 @default.
- W2905973503 creator A5038783234 @default.
- W2905973503 creator A5038807223 @default.
- W2905973503 creator A5038953613 @default.
- W2905973503 creator A5041586994 @default.
- W2905973503 creator A5041977512 @default.
- W2905973503 creator A5043799959 @default.
- W2905973503 creator A5045637371 @default.
- W2905973503 creator A5047124417 @default.
- W2905973503 creator A5048187778 @default.
- W2905973503 creator A5049594121 @default.
- W2905973503 creator A5051444570 @default.
- W2905973503 creator A5052132435 @default.
- W2905973503 creator A5052259298 @default.
- W2905973503 creator A5052459610 @default.
- W2905973503 creator A5053797739 @default.
- W2905973503 creator A5053995910 @default.
- W2905973503 creator A5055237451 @default.
- W2905973503 creator A5056141212 @default.
- W2905973503 creator A5056958632 @default.
- W2905973503 creator A5057348590 @default.
- W2905973503 creator A5059119645 @default.
- W2905973503 creator A5059770486 @default.
- W2905973503 creator A5060207303 @default.
- W2905973503 creator A5061556638 @default.
- W2905973503 creator A5061732474 @default.
- W2905973503 creator A5061794201 @default.
- W2905973503 creator A5062710494 @default.
- W2905973503 creator A5064344101 @default.
- W2905973503 creator A5065284896 @default.
- W2905973503 creator A5065656045 @default.
- W2905973503 creator A5066193402 @default.
- W2905973503 creator A5066741092 @default.
- W2905973503 creator A5067029155 @default.
- W2905973503 creator A5068019043 @default.
- W2905973503 creator A5068957689 @default.
- W2905973503 creator A5070536082 @default.
- W2905973503 creator A5072052336 @default.
- W2905973503 creator A5072977875 @default.
- W2905973503 creator A5073976780 @default.
- W2905973503 creator A5075149440 @default.
- W2905973503 creator A5075477676 @default.
- W2905973503 creator A5076203096 @default.
- W2905973503 creator A5076218529 @default.
- W2905973503 creator A5076606013 @default.
- W2905973503 creator A5076836518 @default.
- W2905973503 creator A5077203720 @default.
- W2905973503 creator A5078075401 @default.
- W2905973503 creator A5078540337 @default.
- W2905973503 creator A5079185663 @default.
- W2905973503 creator A5079763982 @default.
- W2905973503 creator A5080202253 @default.
- W2905973503 creator A5080711447 @default.
- W2905973503 creator A5081126606 @default.
- W2905973503 creator A5081532976 @default.
- W2905973503 creator A5081757114 @default.
- W2905973503 creator A5082065179 @default.
- W2905973503 creator A5085360992 @default.
- W2905973503 creator A5086166220 @default.
- W2905973503 creator A5086473944 @default.
- W2905973503 creator A5086958656 @default.
- W2905973503 creator A5087334196 @default.
- W2905973503 creator A5087696627 @default.