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Proceedings Paper

Advanced characterization and simulation of SONNE: a fast neutron spectrometer for Solar Probe Plus
Author(s): Richard S. Woolf; James M. Ryan; Peter F. Bloser; Ulisse Bravar; Erwin O. Flückiger; Jason S Legere; Alexander MacKinnon; Procheta C. Mallik; Mark L. McConnell; Benoît Pirard
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Paper Abstract

SONNE, the SOlar NeutroN Experiment proposed for Solar Probe Plus, is designed to measure solar neutrons from 1-20 MeV and solar gammas from 0.5-10 MeV. SONNE is a double scatter instrument that employs imaging to maximize its signal-to-noise ratio by rejecting neutral particles from non-solar directions. Under the assumption of quiescent or episodic small-flare activity, one can constrain the energy content and power dissipation by fast ions in the low corona. Although the spectrum of protons and ions produced by nanoflaring activity is unknown, we estimate the signal in neutrons and γ−rays that would be present within thirty solar radii, constrained by earlier measurements at 1 AU. Laboratory results and simulations will be presented illustrating the instrument sensitivity and resolving power.

Paper Details

Date Published: 23 September 2009
PDF: 12 pages
Proc. SPIE 7438, Solar Physics and Space Weather Instrumentation III, 74380S (23 September 2009); doi: 10.1117/12.826425
Show Author Affiliations
Richard S. Woolf, Univ. of New Hampshire Space Science Ctr. (United States)
James M. Ryan, Univ. of New Hampshire Space Science Ctr. (United States)
Peter F. Bloser, Univ. of New Hampshire Space Science Ctr. (United States)
Ulisse Bravar, Univ. of New Hampshire Space Science Ctr. (United States)
Erwin O. Flückiger, Univ. Bern (Switzerland)
Jason S Legere, Univ. of New Hampshire Space Science Ctr. (United States)
Alexander MacKinnon, Univ. of Glasgow (United Kingdom)
Procheta C. Mallik, Univ. of Glasgow (United Kingdom)
Mark L. McConnell, Univ. of New Hampshire Space Science Ctr. (United States)
Benoît Pirard, CANBERRA France (France)


Published in SPIE Proceedings Vol. 7438:
Solar Physics and Space Weather Instrumentation III
Silvano Fineschi; Judy A. Fennelly, Editor(s)

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