Computer Science – Performance
Scientific paper
Dec 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000stin...0104608s&link_type=abstract
Technical Report, Maryland Univ. College Park, MD United States Astronomy Dept.
Computer Science
Performance
Gamma Rays, X Rays, Solar Flares, Gamma Ray Astronomy, X Ray Astronomy, Photometry, Spectroscopy, Performance Tests, X Ray Sources, Modulation
Scientific paper
During the past year we have been working with the HESSI (High Energy Solar Spectroscopic Imager) team in preparation for launch in early 2001. HESSI has as its primary scientific goal photometric imaging and spectroscopy of solar flares in hard X-rays and gamma-rays with an approx. 2 sec angular resolution, approx. keV energy resolution and approx. 2 s time resolution over the 6 keV to 15 MeV energy range. We have performed tests of the imager using a specially designed experiment which exploits the second-harmonic response of HESSI's sub-collimators to an artificial X-ray source at a distance of 1550 cm from its front grids. Figures show the response to X-rays at energies in the range where HESSI is expected to image solar flares. To prepare the team and the solar user community for imaging flares with HESSI, we have written a description of the major imaging concepts. This paper will be submitted for publication in a referred journal.
Kundu Mukul R.
Schmahl Edward J.
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