Experimental Astronomy

, Volume 20, Issue 1–3, pp 65–73 | Cite as

Puzzles and potential for gamma-ray line observations of solar flare ion acceleration

  • David M. SmithEmail author
Original Article


The best tool for understanding ion acceleration in solar flares is gamma-ray line emission from nuclear de-excitation, positron annihilation, and neutron capture. These techniques have not yet come close to reaching their potential due to limited counting statistics in the lines. Instruments with focusing optics and large effective areas promise real breakthroughs in understanding high-energy solar processes. I discuss what can be learned from the various lines and the instrumental requirements for future focusing observations.


Solar flares Gamma-rays Particle acceleration Nuclear astrophysics 


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Copyright information

© Springer Science+Business Media B.V. 2006

Authors and Affiliations

  1. 1.Physics Department and Santa Cruz Institute for Particle PhysicsUniversity of California, Santa CruzSanta CruzUSA

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