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The GEMS photoelectric x-ray polarimeters
Proc. SPIE 7732, 77320X (2010); http://dx.doi.org/10.1117/12.857736
Monday 28 June 2010
San Diego, California, USA
Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray
Monique Arnaud, Stephen S. Murray, Tadayuki Takahashi
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Add to FacebookThe 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.
© 2010 COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
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Online Jul 29, 2010
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J. K. Black, P. Deines-Jones, J. E. Hill, T. Iwahashi, K. Jahoda, P. Kaaret, T. R. Kallman, C. J. Martoff, Z. Prieskorn, J. Swank and T. Tamagawa, "The GEMS photoelectric x-ray polarimeters",
Proc. SPIE 7732, 77320X (2010); http://dx.doi.org/10.1117/12.857736
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