IEEE Transactions on Applied Superconductivity · 2009 · 27 citations · 7 references
Natural SciencesAstronomyMaterials ScienceExtragalactic AstronomyOpticsPhotonicsCosmic Microwave BackgroundCosmic Microwave Background ObservationsDetector TechnologyGalaxy ClustersObservatory InstrumentationRadio TelescopesCompton ScatteringDetector Cooling SystemsFocal Plane DetectorsInverse Compton ScatteringReadoutSilicon WafersSunyaev-zel'dovich EffectTelescope Array Design
We will discuss the design, fabrication, and testing of a 960-element TES array installed on the new 10 meter South Pole Telescope (SPT). This array is designed to survey for galaxy clusters using the Sunyaev-Zel'dovich (SZ) effect, which is the inverse-Compton scattering of Cosmic Microwave Background photons by plasma bound to clusters of galaxies. The SPT bolometer array consists of fully lithographed spider-web absorbers fabricated on adhesive-bonded silicon wafers with an embedded metal back plane. The absorbers are connected to aluminum-titanium bilayer TESs with a transition temperature of approximately 550 mK. Additional normal-metal features adjust the devices' thermal properties to suit our readout system and observational strategy. The focal plane is cooled using a commercial, closed cycle, pulse-tube refrigerator and a three-stage helium sorption refrigerator with a 250 mK base temperature.
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Small-scale fluctuations of relic radiation
R. A. Sunyaev, Ya. B. Zel’dovich · Astrophysics and Space Science · 1970 · 1.1K citations
J. E. Ruhl, P. A. R. Ade, J. E. Carlstrom et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2004 · 272 citations · Full text
Natural Sciences, Astronomy, Physics +17