학술논문

The POLARBEAR Cosmic Microwave Background Polarization Experiment
Document Type
article
Source
Journal of Low Temperature Physics. 176(5-6)
Subject
Particle and High Energy Physics
Physical Sciences
Cosmic microwave background
CMB polarization
Millimeter-wave
Mathematical Physics
Classical Physics
Condensed Matter Physics
General Physics
Classical physics
Condensed matter physics
Language
Abstract
The polarbear cosmic microwave background (CMB) polarization experiment has been observing since early 2012 from its 5,200 m site in the Atacama Desert in Northern Chile. polarbear's measurements will characterize the expected CMB polarization due to gravitational lensing by large scale structure, and search for the possible B-mode polarization signature of inflationary gravitational waves. polarbear's 250 mK focal plane detector array consists of 1,274 polarization-sensitive antenna-coupled bolometers, each with an associated lithographed band-defining filter and contacting dielectric lenslet, an architecture unique in current CMB experiments. The status of the polarbear instrument, its focal plane, and the analysis of its measurements are presented. © 2014 Springer Science+Business Media New York.