E
Edward J. Wollack
Researcher at Goddard Space Flight Center
Publications - 794
Citations - 109859
Edward J. Wollack is an academic researcher from Goddard Space Flight Center. The author has contributed to research in topics: Cosmic microwave background & Atacama Cosmology Telescope. The author has an hindex of 104, co-authored 732 publications receiving 102070 citations. Previous affiliations of Edward J. Wollack include Raytheon & West Chester University of Pennsylvania.
Papers
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Journal ArticleDOI
A 3D-printed broadband millimeter wave absorber.
Matthew Petroff,John W. Appel,Karwan Rostem,Charles L. Bennett,Joseph Eimer,Tobias A. Marriage,Joshua Ramirez,Edward J. Wollack +7 more
TL;DR: In this article, a 3D-printed broadband graded index millimeter wave absorber is used for terminating stray light in cosmic microwave background telescopes. But the absorber's reflectivity is measured from 63 GHz to 115 GHz and from 140 GHz to 215 GHz and is compared to electromagnetic simulations.
Journal ArticleDOI
Slotline Stepped Circular Rings for Low-Loss Microstrip-to-Slotline Transitions
TL;DR: In this paper, a low-loss slotline (SL) stepped circular ring termination was proposed for use in a microstrip-to-slotline (MS-toSL) transition.
Proceedings ArticleDOI
Kilopixel backshort-under-grid arrays for the Primordial Inflation Polarization Explorer
Christine A. Jhabvala,Dominic J. Benford,Regis P. Brekosky,Meng-Ping Chang,Nick Costen,Aaron M. Datesman,Gene C. Hilton,Kent D. Irwin,Alan J. Kogut,J. Lazear,J. Lazear,Edward Leong,Stephen F. Maher,Timothy M. Miller,Samuel H. Moseley,E. Sharp,E. Sharp,Johannes Staguhn,Johannes Staguhn,Edward J. Wollack +19 more
TL;DR: In this article, a kilopixel, filled, infrared bolometer array for the balloon-borne Primordial Inflation Polarization Explorer (PIPER) was demonstrated, which consists of three individual components assembled into a single working unit: 1) a transition-edge-sensor array with background-limited sensitivity, 2) a quarter-wavelength backshort grid, and 3) an integrated Superconducting Quantum Interference Device (SQUID) multiplexer (MUX) readout).
Journal ArticleDOI
An All Silicon Feedhorn-Coupled Focal Plane for Cosmic Microwave Background Polarimetry
Johannes Hubmayr,J. W. Appel,Jason E. Austermann,J. A. Beall,Dan Becker,Bradford Benson,Lindsey Bleem,John E. Carlstrom,John E. Carlstrom,C. L. Chang,C. L. Chang,H. M. Cho,A. T. Crites,Thomas Essinger-Hileman,Anna E. Fox,Elizabeth George,N. W. Halverson,N. L. Harrington,Jason W. Henning,Gene C. Hilton,W. L. Holzapfel,Kent D. Irwin,Aaron Lee,Dale Li,Jeff McMahon,J. Mehl,T. Natoli,Michael D. Niemack,Laura Newburgh,John P. Nibarger,L. P. Parker,Benjamin L. Schmitt,Suzanne T. Staggs,J. Van Lanen,Edward J. Wollack,K. W. Yoon +35 more
TL;DR: In this article, a monolithic, feedhorn-coupled transition edge sensor polarimeter array operating at 150 GHz was proposed for the Atacama Cosmology Telescope Polarimeter (ACTPol).
First-year wilkinson microwave anisotropy probe (wmap) 1 observations:
On-Orbit Radiometer Characterization,N. Jarosik,C. Barnes,C. L. Bennett,Mark Halpern,G. Hinshaw,Alan J. Kogut,Michele Limon,S. S. Meyer,David N. Spergel,Gregory S. Tucker,Janet Weiland,Edward J. Wollack,E. L. Wright +13 more
TL;DR: The WMAP satellite has completed 1 year of measurements of the cosmic microwave background (CMB) radiation using 20 differential high electron mobility transistor (HEMT) based radiometers as discussed by the authors.