Imaging X-ray Polarimeter for Solar Flares (IXPS)

Details Imaging X-ray Polarimeter for Solar Flares (IXPS) Imaging X-ray Polarimeter for Solar Flares (IXPS)

Nov 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011exa....32..101h&link_type=abstract

Experimental Astronomy, Volume 32, Issue 2, pp.101-125

Astronomy and Astrophysics

Astronomy

Solar Flare, X-Ray Polarimetry, Particle Tracking, Gem, Tpc

Scientific paper

We describe the design of a balloon-borne Imaging X-ray Polarimeter for Solar flares (IXPS). This novel instrument, a Time Projection Chamber (TPC) for photoelectric polarimetry, will be capable of measuring polarization at the few percent level in the 20-50 keV energy range during an M- or X-class flare, and will provide imaging information at the ˜10 arcsec level. The primary objective of such observations is to determine the directivity of nonthermal high-energy electrons producing solar hard X-rays, and hence to learn about the particle acceleration and energy release processes in solar flares. Secondary objectives include the separation of the thermal and nonthermal components of the flare X-ray emissions and the separation of photospheric albedo fluxes from direct emissions.

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