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Spider (Polarimeter)

Spider (Polarimeter)

Paperback

Technology & Engineering

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ISBN10: 6137662071
ISBN13: 9786137662076
Publisher: Betascript Pub
Pages: 144
Weight: 0.49
Height: 0.34 Width: 5.98 Depth: 9.02
Language: English
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Spider is a balloon-borne experiment designed to search for primordial gravity waves imprinted on the cosmic microwave background (CMB). Measuring the strength of this signal puts limits on inflationary theory. The Spider instrument consists of six degree-resolution telescopes cooled to liquid Helium temperature (4 K) which observe at frequencies of 100 GHz, 150 GHz, and 220 GHz (corresponding to wavelengths of 3 mm, 2 mm, and 1.4 mm). Each telescope is coupled to a polarisation-sensitive transition-edge bolometer array cooled to 250 mK.

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