Preliminary Results of the CNO Concentration in Cosmic Ray Spectrum asMeasured from the ATIC Experiment
Abstract
We present preliminary results on the spectra of CNO nuclei in the cosmic radiation as measured in a 16-day first flight of ATIC in December, 2000 from McMurdo,Antarctica. ATIC is a multiple, long duration balloon flight, investigation to study the cosmic ray spectra from 50 GeV to 100 TeV, using a fully active BGO calorimeter. It is composed of a large area mosaic of small fully depleted silicon detectors for charge id. Three projective layers of x-y scintillator hodoscopes located above, in the center and below a Carbon interaction target provide further charge id and tracking.
- Publication:
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APS April Meeting Abstracts
- Pub Date:
- April 2002
- Bibcode:
- 2002APS..APRP11007G