Spectrometer for neutron and gamma-ray detection at the distances less than 100 solar radii from the Sun

Details Spectrometer for neutron and gamma-ray detection at the distances less than 100 solar radii from the Sun Spectrometer for neutron and gamma-ray detection at the distances less than 100 solar radii from the Sun

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001icrc....8.3069k&link_type=abstract

Proceedings of the 27th International Cosmic Ray Conference. 07-15 August, 2001. Hamburg, Germany. Under the auspices of the Int

Physics

Scientific paper

Solar neutrons with energies <5 MeV can't be detected in the near-Earth space due to the both its decay and decreasing of its fluxes with distance from the Sun. So solar neutron observations near the Sun compared with near-Earth ones allow studying acceleration of ions up to significantly smaller energies, what occurs considerably more often. Besides that near-Sun low energy neutron observations are important for search for non-flare ion acceleration on the Sun. For project InterHelioProbe we have proposed spectrometer of neutrons with energies 0.055 MeV. LiI(Eu) crystal 4*3 cm enriched in 6 Li , surrounded by a plastic scintillator 1-3 cm thick loaded with 10 B is used as a detector. Neutrons will undergo elastic scattering with the hydrogen in the plastic. A delayed coincidence within a window of 0.1 - 10 µs in either scintillator is a signature of a neutron, with the initial fast plastic signal pulse height being a direct measure of the incident neutron's energy. A fast charged particle will be vetoed as simultaneous signals in both scintillators. Gamma's with energies 0.03-10 MeV will be identified too as signals in LiI alone. Calculated effective area for normal neutron incidence is 0.3-5.6 cm2 . Estimated effective area for gamma detection is 3-12 cm2 . Mass of the instrument is <1.5 kg. Power of the detector is about 1.5 watt, needing telemetry - 40 b/s.

Affiliated with

Also associated with

No associations

Rating

Spectrometer for neutron and gamma-ray detection at the distances less than 100 solar radii from the Sun does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spectrometer for neutron and gamma-ray detection at the distances less than 100 solar radii from the Sun, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectrometer for neutron and gamma-ray detection at the distances less than 100 solar radii from the Sun will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-798264