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Relative abundances of cosmic ray nuclei B-C-N-O in the energy region from 10 GeV/n to 300 GeV/n. Results from ATIC-2 (the science flight of ATIC)

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arxiv 0707.4415 v1 pith:5UZZ2XIO submitted 2007-07-30 astro-ph

classification astro-ph
keywords chargeaticenergynucleiregionresolutioncosmicdetector
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The ATIC balloon-borne experiment measures the energy spectra of elements from H to Fe in primary cosmic rays from about 100 GeV to 100 TeV. ATIC is comprised of a fully active bismuth germanate calorimeter, a carbon target with embedded scintillator hodoscopes, and a silicon matrix that is used as the main charge detector. The silicon matrix produces good charge resolution for protons and helium but only partial resolution for heavier nuclei. In the present paper, the charge resolution of ATIC was improved and backgrounds were reduced in the region from Be to Si by using the upper layer of the scintillator hodoscope as an additional charge detector. The flux ratios of nuclei B/C, C/O, N/O in the energy region from about 10 GeV/nucleon to 300 GeV/nucleon obtained from this high-resolution, high-quality charge spectra are presented, and compared with existing theoretical predictions.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. OpenAlex reports about 7 citations worldwide. Full citation record

  1. Analyzing Cosmic Ray Spectral Features: A Numerical Investigation

    astro-ph.HE 2026-07 conditional novelty 4.0 of 10

    GALPROP v57 fits show injection-spectrum breaks (alone or with a diffusion break) better reproduce cosmic-ray hardening than diffusion alone, while p/He softening needs a further break and the positron excess needs a ...

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