Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011acasn..52..339t&link_type=abstract
Acta Astronomica Sinica, vol. 52, no. 4, p.339-351
Astronomy and Astrophysics
Astronomy
Telescopes, Sun: X-Rays, Sun: Flares, Techniques: Image Processing, Methods: Miscellaneous
Scientific paper
High-energy phenomena always play an important role in solar research field. Observations of hard X-ray/gamma-ray can be divided into images and spectra, both of which give clues to reveal the secret of the energy release of solar flares. Instead of conventional imaging technique using mirrors or lens, which cannot work in energy above a few keV, direct imaging, coded aperture and Fourier transform are used for high-energy imaging. Fourier transform technique stands out because of its high sensitivity and high reliability. It can be implemented in various hardware configurations, among which spatial modulation collimator and rotating modulation collimator are widely used. Modulation collimator type hard X-ray imaging telescope is currently widely used in solar observation. For the possible Chinese solar mission in the near future, we make a design of hard X-ray imaging telescope using the common simulation software, GEANT4. The results are closer to the fact compared with the traditional geometric algorithm. An executable design is also proposed at last.
Chang Jaewan
Teng T.
Wu Jackson
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