Project Description
13 element interferometer
20 cm diameter horn/lens telescopes
baselines 25 - 120 cm
(q ~ 0.2 to 1.4; l ~ 140 to 900)
fixed rotatable aperture plane
low noise 26 - 36 GHz HEMT receivers
10 GHz bandwidth correlation
1.56 THz of correlation!
high surface brightness sensitivity
densely packed configuration
few mK sensitivity per pixel in 24 hours
operate throughout the winter
Close cooperation with Caltech Cosmic
Background Imager (CBI)
share electronics and software design
complementary angular power spectrum coverage
DASI: 140 - 900 (deployed to the Pole)
CBI: 700 - 3600 (deployed to Chile)