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

Atacama Pathfinder Experiment (APEX-SZ)

• At 16,500 feet altitude 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

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South Pole Telescope (SPT)

• 10m off-axis telescope

• 4000 sq. degree galaxy cluster survey

• Deep CMB anisotropy and polarization fields

• First light spring 2007

Berkeley Receiver:

• 1000 Bolometer array

• 3 to 4 bands: (90), 150, 250 and 270 GHz (interchangeable)

• LBNL responsible for readout

POLARBEAR

• Ground-Based 3m Telescope at UC Research Station on White Mountain, Calif.

• Optimized for CMB Polarization

• Characterize E-modes

• Search for B-modes (primordial gravity waves)

• Novel Technology

• Ready for Construction