The GEMS photoelectric x-ray polarimeters

Authors :: J. K. Black
P. Deines-Jones
Keith Jahoda
Toru Tamagawa
Timothy R. Kallman
J. E. Hill
Jean H. Swank
P. Kaaret
T. Iwahashi
Z. Prieskorn
C. J. Martoff
Source :: Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray.
Publication Year :: 2010
Publisher :: SPIE, 2010.
Abstract: The Gravity and Extreme Magnetism Small Explorer (GEMS) is an astrophysical observatory dedicated to X-ray polarimetry (2-10 keV) and is being developed for launch in 2014. To maximize the polarization sensitivity of the observatory, GEMS uses polarimeters based on the photoelectric effect with a gas micropattern time projection chamber (TPC). We describe the TPC polarimeter concept and the details of the GEMS implementation, including factors that affect the ultimate polarization sensitivity, including quantum efficiency, modulation factor, systematic errors, and background.

Subjects :: Physics
Time projection chamber
Physics::Instrumentation and Detectors
business.industry
Astrophysics::High Energy Astrophysical Phenomena
Astrophysics::Instrumentation and Methods for Astrophysics
Polarimetry
Polarimeter
Optical polarization
Photoelectric effect
Polarization (waves)
Optics
Observatory
Astrophysics::Solar and Stellar Astrophysics
Quantum efficiency
business

ISSN :: 0277786X
Database :: OpenAIRE
Journal :: Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray
Accession number :: edsair.doi...........e354a56763cb9fb58e308a2c48c79eb2
Full Text :: https://doi.org/10.1117/12.857736