Design and performance of the SPIDER instrument
Here we describe the design and performance of the SPIDER instrument. SPIDER is a balloon-borne cosmic microwave background polarization imager that will map part of the sky at 90, 145, and 280 GHz with subdegree resolution and high sensitivity. This paper discusses the general design principles of the instrument inserts, mechanical structures, optics, focal plane architecture, thermal architecture, and magnetic shielding of the TES sensors and SQUID multiplexer. We also describe the optical, noise, and magnetic shielding performance of the 145 GHz prototype instrument insert.
Additional Information© 2010 SPIE. The Spider collaboration gratefully acknowledges the support of NASA (grant number NNX07AL64G), the Gordon and Betty Moore Foundation, and NSERC. With great sadness, the Spider collaboration acknowledges the countless contributions of Andrew E. Lange, the late PI of the Spider project. His wisdom and selfless leadership will be sorely missed. WCJ acknowledges the support of the Alfred P. Sloan Foundation. The authors gratefully acknowledge our collaboration with the BICEP2 and Keck projects. The author thanks J. Lazear for his help with the design and construction of the cold load.