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CAPMAP :A new instrument to measure the e-mode CMB polarization on angular scales of 4 feet to 40 feet

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	CAPMAP :
其他題名:	A new instrument to measure the e-mode CMB polarization on angular scales of 4 feet to 40 feet
作者:	Barkats, Denis.
面頁冊數:	203 p.
附註:	Adviser: Suzanne T. Staggs.
附註:	Source: Dissertation Abstracts International, Volume: 65-02, Section: B, page: 0786.
Contained By:	Dissertation Abstracts International65-02B.
標題:	Physics, Astronomy and Astrophysics.
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3123413
ISBN:	0496707248

CAPMAP :A new instrument to measure the e-mode CMB polarization on angular scales of 4 feet to 40 feet
Barkats, Denis.

CAPMAP :A new instrument to measure the e-mode CMB polarization on angular scales of 4 feet to 40 feet [electronic resource] - 203 p.

Adviser: Suzanne T. Staggs.

Thesis (Ph.D.)--Princeton University, 2004.

The CMB polarization is the Everest in the quest to characterize the earliest photons from the Universe. After a long list of ever-decreasing upper limits, a detection of polarization was made in 2002 by the DASI team at &ell; &sime; 500. The experiment described in this thesis is designed to make a more detailed measurements at higher angular resolution.

ISBN: 0496707248Subjects--Topical Terms:

227131
Physics, Astronomy and Astrophysics.

CAPMAP :A new instrument to measure the e-mode CMB polarization on angular scales of 4 feet to 40 feet
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520 # $a The CMB polarization is the Everest in the quest to characterize the earliest photons from the Universe. After a long list of ever-decreasing upper limits, a detection of polarization was made in 2002 by the DASI team at &ell; &sime; 500. The experiment described in this thesis is designed to make a more detailed measurements at higher angular resolution.
520 # $a The E-mode polarization power spectrum not only provides a more direct link to the properties of the last scattering surface than the temperature anisotropy but also offers complementary information which can be used to break various degeneracies in the determination of cosmological parameters. Most importantly, the existence of polarization is a robust prediction of the standard cosmological picture so a precise measurement of the CMB polarization should come as a confirmation of the standard model. However, polarization measurements represent an experimental challenge. The weakness of the polarization signal requires both a demanding instrumental sensitivity and focused attention to all sources of systematic error.
520 # $a This thesis describes the design, construction, and testing of a 90 GHz four-element array of correlation polarimeters to probe the E-mode polarization power spectrum at multipoles (&ell;) ranging from 500 to 1500. The array was fielded in Jan 2003 on the 7-meter Crawford Hill antenna, in Holmdel, New Jersey and observed for two months. The receiver calibration is described in detail, as well as the characterization of the pointing and beams. Preliminary analysis indicates that the instrument is sufficiently sensitive to detect the few-muK signal of the CMB polarization.
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