Cosmic Microwave Background (CMB)

The CMB polarization program is building on the infrastructure being developed at currently operating experiments in Chile leading up to the proposed next- generation experiment, CMB-S4. We are carrying out detector and readout R&D to advance the necessary technologies for both the Simons Observatory and CMB-S4, and developing the large-scale simulations necessary for planning and analyzing CMB-S4 based on prior computational work carried out for the Planck mission. The Berkeley Lab CMB effort is a phased program that will extend well through the next decade.