Measurements of 0.2–20 GeV/n cosmic-ray proton and helium spectra from 1997 through 2002 with the BESS spectrometer
Y Shikaze, S Haino, K Abe, H Fuke, T Hams, KC Kim… - Astroparticle …, 2007 - Elsevier
We measured low energy cosmic-ray proton and helium spectra in the kinetic energy range
0.215–21.5 GeV/n at different solar activities during a period from 1997 to 2002. The
observations were carried out with the BESS spectrometer launched on a balloon at Lynn
Lake, Canada. A calculation for the correction of secondary particle backgrounds from the
overlying atmosphere was improved by using the measured spectra at small atmospheric
depths ranging from 5 through 37g/cm2. The uncertainties including statistical and …
0.215–21.5 GeV/n at different solar activities during a period from 1997 to 2002. The
observations were carried out with the BESS spectrometer launched on a balloon at Lynn
Lake, Canada. A calculation for the correction of secondary particle backgrounds from the
overlying atmosphere was improved by using the measured spectra at small atmospheric
depths ranging from 5 through 37g/cm2. The uncertainties including statistical and …
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