National Aeronautics and Space Administration

Living With A Star

Targeted Research and Technology

A Neutron Spectrometer for Solar Sentinel

ROSES ID: NRA-02-OSS-01      Selection Year: 2003      

Program Element: Independent Investigation: LWS

Principal Investigator: James Ryan

Affiliation(s): University of New Hampshire

Project Member(s):
Macri, John Rocco COI University of New Hampshire
Miller, Richard Scott COI University of New Hampshire
Sosa, Victor G Authorizing Official University of New Hampshire
Flueckiger, Erwin O. Collaborator University of Bern


We propose to develop a solar neutron spectrometer/telescope for deployment on a Solar Sentinel. Measuring neutrons below 10 MeV from solar activity requires a platform much closer to the Sun than 1 AU. These neutrons carry information about the spectrum and composition of energetic particle populations on the Sun. To effectively use these neutrons, one must measure them rather than simply detect them. To that end, we propose to develop an instrument that performs the necessary spectroscopy to remove the neutron spectrum velocity dispersion. It also is designed to image a neutron source as a means to minimize the count rate from directions other than the Sun.


Performance YearReferenceInvestigation TypeActions
1Ryan, James   UNH - A Neutron Spectrometer for Solar Sentin...
not set
1Bravar, Ulisse; Bruillard, Paul J.; Flueckiger, Erwin...
not set
1Ryan, James M.; Bravar, Ulisse; Flückiger, Erwin O.;...
not set


Performance YearReferenceActions
1Woolf, Richard S.; Bravar, U.; Bruillard, P.; Macri,...

Export to PDF