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CMB and Cosmology

CMB and Cosmology. Integrated program combines effort at LBNL + UCB Strong program in theory, data analysis, algorithms MAXIPOL, Planck Collaboration with NERSC New instrumentation enables new experiments APEX-SZ, South Pole Telescope Galaxy Cluster Search - probe Dark Energy

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CMB and Cosmology

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  1. CMB and Cosmology • Integrated program combines effort at LBNL + UCB • Strong program in theory, data analysis, algorithms • MAXIPOL, Planck • Collaboration with NERSC • New instrumentation enables new experiments • APEX-SZ, South Pole Telescope • Galaxy Cluster Search - probe Dark Energy • POLARBEAR design ripe for construction • CMB Polarization - probe Energy Scale of Inflation • LBNL leads readout development • Program combines strengths of National Lab and University

  2. Atacama Pathfinder Experiment (APEX-SZ) • 16,500 feet in Chilean Andes. • 12m on-axis ALMA prototype Berkeley SZ Receiver: • 330 Bolometer array • Discover 4000 Clusters/2yrs • Mass limit > 4x1014 M0 • First Light Spring 2005. • LBNL responsible for readout UC Berkeley/LBNL, MPI-Bonn/Munich, Cardiff

  3. 10m South Pole Telescope (SPT)and 1000 element Bolometer Array • Low noise, precision telescope • 20 mm rms surface • 1 arc second pointing • 1.0 arcminute at 2 mm wavelength • ‘chop’ entire telescope • 3 levels of shielding • ~1 m radius on primary • inner moving shields • outer fixed shields SZE and CMB Anisotropy - 4000 sq deg SZE survey - deep CMB anisotropy fields - deep CMB Polarization fields Principal Investigators Carlstrom (UChicago) Holzapfel (UCB) Lee (UCB,LBNL) Leitch (UChicago) Meyer (UChicago) Mohr (U Illinois)Padin (UChicago) Pryke (UChicago) Ruhl (CWRU) Spieler (LBNL) Stark (CfA) 1000 Element Bolometer Array - 3 to 4 interchangeable bands (90) 150, 250 & 270 GHz - APEX-SZ style horn fed spider web absorbers NSF-OPP funded & scheduled for Nov 2006 deployment DoE (LBNL) funding of readout development

  4. POLARBEAR • Ground-Based 3 meter Telescope at UC Research Station on White Mountain • Optimized for CMB Polarization • Characterize E-modes • Search for B-modes • Novel Technology • Ready for Construction • R&D under LDRD funding • Proposed to SAGENAP 3m Telescope Design by Vertex

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