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Proceedings Paper

5,120 superconducting bolometers for the PIPER balloon-borne CMB polarization experiment
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Paper Abstract

We are constructing the Primordial Inflation Polarization Explorer (PIPER) to measure the polarization of the cosmic microwave background (CMB) and search for the imprint of gravity waves produced during an inflationary epoch in the early universe. The signal is faint and lies behind confusing foregrounds, both astrophysical and cosmological, and so many detectors are required to complete the measurement in a limited time. We will use four of our matured 1,280 pixel, high-filling-factor backshort-under-grid bolometer arrays for efficient operation at the PIPER CMB wavelengths. All four arrays observe at a common wavelength set by passband filters in the optical path. PIPER will fly four times to observe at wavelengths of 1500, 1100, 850, and 500 μm in order to separate CMB from foreground emission. The arrays employ leg-isolated superconducting transition edge sensor bolometers operated at 128 mK; tuned resonant backshorts for efficient optical coupling; and a second-generation superconducting quantum interference device (SQUID) multiplexer readout. We describe the design, development, and performance of PIPER bolometer array technology to achieve background-limited sensitivity for a cryogenic balloon-borne telescope.

Paper Details

Date Published: 15 July 2010
PDF: 9 pages
Proc. SPIE 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, 77411Q (15 July 2010); doi: 10.1117/12.856491
Show Author Affiliations
Dominic J. Benford, NASA Goddard Space Flight Ctr. (United States)
David T. Chuss, NASA Goddard Space Flight Ctr. (United States)
Gene C. Hilton, National Institute of Standards and Technology (United States)
Kent D. Irwin, National Institute of Standards and Technology (United States)
Nikhil S. Jethava, NASA Goddard Space Flight Ctr. (United States)
Global Science & Technology (United States)
Christine A. Jhabvala, NASA Goddard Space Flight Ctr. (United States)
Alan J. Kogut, NASA Goddard Space Flight Ctr. (United States)
Timothy M. Miller, NASA Goddard Space Flight Ctr. (United States)
MEI Technologies, Maryland (United States)
Paul Mirel, NASA Goddard Space Flight Ctr. (United States)
Wyle Information Systems (United States)
S. Harvey Moseley, NASA Goddard Space Flight Ctr. (United States)
Karwan Rostem, NASA Goddard Space Flight Ctr. (United States)
Oak Ridge Associated Universities (United States)
Elmer H. Sharp, NASA Goddard Space Flight Ctr. (United States)
Global Science & Technology (United States)
Johannes G. Staguhn, NASA Goddard Space Flight Ctr. (United States)
Johns Hopkins Univ. (United States)
Gregory M. Stiehl, National Institute of Standards and Technology (United States)
George M. Voellmer, NASA Goddard Space Flight Ctr. (United States)
Edward J. Wollack, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 7741:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V
Wayne S. Holland; Jonas Zmuidzinas, Editor(s)

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