The High Energy Solar Spectroscopic Imager

Session 70 - Solar Flares and Ejections.
Display session, Thursday, June 13
Tripp Commons,

[70.16] The High Energy Solar Spectroscopic Imager - HESSI

B. R. Dennis, C. J. Crannell, G. D. Holman, R. Ramaty, T. T. von Rosenvinge (GSFC), A. Benz (ETHZ, Zurich), P. L. Bornmann (NOAA), J. C. Brown (U.Glasgow, Scotland), R. C. Canfield (MSU), A. G. Emslie (UAH), S. Enome, T. Kosugi (NAO, Japan), H. S. Hudson (SPRC), G. J. Hurford (Caltech), R. P. Lin (UCB), J. C. Ling (JPL), N. W. Madden (LBNL), H. F. van Beek (Delft U. of Tech., The Netherlands), N. Vilmer (Obs. de Paris, France)

HESSI will investigate the physics of particle acceleration and energy release in solar flares through an unprecedented combination of high resolution imaging and spectroscopy of X-rays and gamma rays from 2 keV to 20 MeV during the next solar maximum. It uses Fourier-transform imaging with 12 bi-grid modulation collimators and cooled germanium and silicon detectors mounted on a Sun-pointed spin-stabilized spacecraft in a low-altitude equatorial orbit. HESSI will carry out the first imaging spectroscopy in hard X-rays with 2 arcseconds angular resolution, time resolution to tens of ms, and \sim1 keV energy resolution; the first gamma-ray line spectroscopy from a spacecraft with \sim1 keV energy resolution; and the first gamma-ray line and continuum imaging with 20 arcseconds angular resolution.

Program listing for Thursday