A Prototype of a Neutron and y-Ray Spectrometer for Studying Solar Activity at Distances of 0.5 Astronomical Units to 25 Solar Radii

摘要

The InterSONG instrument now being developed at the Skobel'tsyn Institute of Nuclear Physics will allow the sensitivity of experiments on solar neutrons to be significantly raised by performing measurements in the immediate neighborhood of the Sun. It is expected that this instrument will be used on the Inter-HELIOS automatic interplanetary station operating at distances of as many as 25 solar radii. The instrument is based on a Lil scintillating crystal enriched with 6{sup left}Li, and a boron-containing plastic scintillator that also acts as a fast neutron moderator. The instrument is designed to detect neutrons with energies of 0.1-100 MeV and electromagnetic radiation over the range 0.03-10 MeV.