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QUIET Experiment and HEMT Receiver Array

Abstract: QUIET is an experiment that aims for the precise measurement of Cosmic Microwave Background (CMB) polarization at the Atacama deser in Chile. It employs 40GHz 19-element and 90GHz 91-element High Electron Mobility Transistor (HEMT) amplifier receiver arrays. The receiver array for QUIET is made possible by packaged Microwave Monolithic IC (MMIC) receiver modules, a recent technology breakthrough born at Jet Propulsion Laboratory (JPL). In this talk, I will review the instrumentation of QUIET experiment, and also discuss about its future upgrade.
Speaker: Akito Kusaka - KICP, Univeristy of Chicago
Speaker Bio: Akito Kusaka is a research associate with the Kavli Institute for Cosmological Physics at the University of Chicago. He received his PhD from University of Tokyo for his research on the measurement of the CP violation in B meson system at Belle experiment. He started his carrier as an experimental cosmologist joining QUIET collaboration two years ago. QUIET measures anisotropy of the CMB polarization at the scale ~2 degrees on the sky, seeking for the possible signature of GUT scale physics from inflationary era.
Poster Link: Poster
Presentation: Presentation on 10/14/2009 (PDF)