Measuring the Cosmic Microwave (CMBR) polarization with QUIET

摘要

A major goal of upcoming experiments crowave Background Radiation (CMBR) is to reveal the rneasur*ng the Cosmic Mi- in the polarization pattern which requires unprecedent H signature of inflation systematics. Since the sensitivity of single receivers has sensitivity and control of future experiments will take advantage of large receive a fundamental limits icantly increase the sensitivity. Here we introduce the D/1^8 *n Olc^er signif- (QUIET) which will use HEMT-based receivers in chip Imaging ExperimenT the Atacama Desert, Data taking is planned for the beK^aC.kages at 90(40) GHz in type arrays of 91(19) receivers, an expansion to 1000 rec nin8 2008 with proto- two frequencies and a careful choice of scan regions there 6IS *S oreseen With the dealing with foregrounds and reaching a sensitivity atlh e Promise of effectively of the tensor to scalar perturbations.