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Sökning: WFRF:(Chun H) > (2020-2024) > Systematic effects ...

Systematic effects on a Compton polarimeter at the focus of an X-ray mirror

Aoyagi, M. (författare)
Osaka University, Department of Earth and Space Science, Graduate School of Science, and Project Research Center for Fundamental Sciences, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan, 1-1 Machikaneyama-cho, Toyonaka
Bose, R. G. (författare)
Physics Department, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105; McDonnell Center for the Space Sciences, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105
Chun, S. (författare)
Physics Department, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105; McDonnell Center for the Space Sciences, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105
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Gau, E. (författare)
Physics Department, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105; McDonnell Center for the Space Sciences, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105
Hu, K. (författare)
Physics Department, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105; McDonnell Center for the Space Sciences, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105
Ishiwata, K. (författare)
Osaka University, Department of Earth and Space Science, Graduate School of Science, and Project Research Center for Fundamental Sciences, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan, 1-1 Machikaneyama-cho, Toyonaka
Iyer, Nirmal (författare)
KTH,Partikel- och astropartikelfysik
Kislat, F. (författare)
University of New Hampshire, Department of Physics and Astronomy, and Space Science Center, Morse Hall, 8 College Road, Durham, NH 03824, USA, 8 College Road
Kiss, Mózsi, 1982- (författare)
KTH,Partikel- och astropartikelfysik
Klepper, Kassi (författare)
KTH,Partikel- och astropartikelfysik
Krawczynski, H. (författare)
Physics Department, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105; McDonnell Center for the Space Sciences, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105
Lisalda, L. (författare)
Physics Department, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105; McDonnell Center for the Space Sciences, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105
Maeda, Y. (författare)
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan, 3-1-1 Yoshinodai, Sagamihara
af Malmborg, Filip (författare)
KTH,Partikel- och astropartikelfysik
Matsumoto, H. (författare)
Osaka University, Department of Earth and Space Science, Graduate School of Science, and Project Research Center for Fundamental Sciences, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan, 1-1 Machikaneyama-cho, Toyonaka; Forefront Research Center, Osaka University, Japan
Miyamoto, A. (författare)
Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan, 1-1 Minami-Osawa, Hachioji
Miyazawa, T. (författare)
Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha, Onna-son, Kunigami-gun Okinawa, Japan 904-0495, 1919-1 Tancha, Onna-son, Kunigami-gun Okinawa
Pearce, Mark, 1970- (författare)
KTH,Partikel- och astropartikelfysik
Rauch, B. F. (författare)
Physics Department, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105; McDonnell Center for the Space Sciences, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105
Rodriguez Cavero, N. (författare)
Physics Department, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105; McDonnell Center for the Space Sciences, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105
Spooner, S. (författare)
University of New Hampshire, Department of Physics and Astronomy, and Space Science Center, Morse Hall, 8 College Road, Durham, NH 03824, USA, 8 College Road
Takahashi, H. (författare)
Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan, 1-3-1 Kagamiyama, Higashi-Hiroshima
Uchida, Y. (författare)
Tokyo University of Science 2641 Yamazaki, Noda, Chiba 278-8510, Japan, 2641 Yamazaki, Noda
West, A. T. (författare)
Physics Department, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105; McDonnell Center for the Space Sciences, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105; Currently at University of Arizona, Department of Astronomy, Steward Observatory, 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA, 933 North Cherry Avenue
Wimalasena, K. (författare)
University of New Hampshire, Department of Physics and Astronomy, and Space Science Center, Morse Hall, 8 College Road, Durham, NH 03824, USA, 8 College Road
Yoshimoto, M. (författare)
Osaka University, Department of Earth and Space Science, Graduate School of Science, and Project Research Center for Fundamental Sciences, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan, 1-1 Machikaneyama-cho, Toyonaka
visa färre...
Osaka University, Department of Earth and Space Science, Graduate School of Science, and Project Research Center for Fundamental Sciences, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan, 1-1 Machikaneyama-cho, Toyonaka Physics Department, Washington University in St Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105; McDonnell Center for the Space Sciences, Washington University in St. Louis, 1 Brookings Drive, CB 1105, St. Louis, MO 63130, USA, 1 Brookings Drive, CB 1105 (creator_code:org_t)
Elsevier BV, 2024
2024
Engelska.
Ingår i: Astroparticle physics. - : Elsevier BV. - 0927-6505 .- 1873-2852. ; 158
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • XL-Calibur is a balloon-borne Compton polarimeter for X-rays in the ∼15–80 keV range. Using an X-ray mirror with a 12 m focal length for collecting photons onto a beryllium scattering rod surrounded by CZT detectors, a minimum-detectable polarization as low as ∼3% is expected during a 24-hour on-target observation of a 1 Crab source at 45° elevation. Systematic effects alter the reconstructed polarization as the mirror focal spot moves across the beryllium scatterer, due to pointing offsets, mechanical misalignment or deformation of the carbon-fiber truss supporting the mirror and the polarimeter. Unaddressed, this can give rise to a spurious polarization signal for an unpolarized flux, or a change in reconstructed polarization fraction and angle for a polarized flux. Using bench-marked Monte-Carlo simulations and an accurate mirror point-spread function characterized at synchrotron beam-lines, systematic effects are quantified, and mitigation strategies discussed. By recalculating the scattering site for a shifted beam, systematic errors can be reduced from several tens of percent to the few-percent level for any shift within the scattering element. The treatment of these systematic effects will be important for any polarimetric instrument where a focused X-ray beam is impinging on a scattering element surrounded by counting detectors.

Ämnesord

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Nyckelord

Balloon-borne telescope
Bench-marking
Compton polarimetry
Modulation response
Monte-Carlo simulations
Offset correction
X-ray optics

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art (ämneskategori)

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