The Antarctic Laboratory for Cosmic Rays (acronym: LARC; Chile/Italy collaboration via INACH and PNRA) records since January 1991 the nucleonic component of galactic cosmic rays (detector type: 6-NM-64) in the high-latitude Latin-American sector (South Shetlands). Among the different LARC research goals the GLE identification has the first priority.
Data are obtained with a standard neutron monitor. It is based on the use of BF3 proportional counters. About 92% of neutrons, recorded by the monitor, are created by the nucleonic component (one of the three cosmic ray components originating by the interaction of primary cosmic rays with the atmospheric air nuclei) flux, while about 1% of the total counting rate is coming from the background; the remaining 7% is induced by high energy muons and pions.
To acknowledge the Chile/Italy collaboration for LARC via INACH and PNRA