Speaker
clarence chang
(Argonne National Lab)
Description
Advances in CMB instrumentation have opened a new era for studying
fundamental physics through precision measurements of the Cosmic Microwave
Background (CMB). CMB measurements are critical for our understanding of
cosmology and provides a unique probe of Dark Energy, the Cosmic Neutrino
Background, and the physics of inflation. The South Pole Telescope (SPT)
collaboration has been actively developing new CMB detectors and has
implemented focal plane arrays using state-of-the-art Transition Edge
Sensor (TES) technology to enable new CMB science. Results include
the first discovery of unknown galaxy clusters using the Sunyaev-Zeldovich
effect and the first detection of the CMB B-mode polarization signal from
gravitational lensing. In this talk, I will give an overview of the
technological developments for the SPT science program and will illustrate
how innovation in instrumentation has enabled new science. I will discuss
the technical challenges limiting CMB experiments and describe how the
ongoing SPT detector R&D program aims to overcome these limitations.
Primary author
clarence chang
(Argonne National Lab)
