Author/Authors :
Clem، نويسنده , , J. and Droege، نويسنده , , W. and Evenson، نويسنده , , P.A. and Fischer، نويسنده , , H. and Green، نويسنده , , G. L. Huber، نويسنده , , D. and Kunow، نويسنده , , H. and Seckel، نويسنده , , D.، نويسنده ,
Abstract :
We present results from the initial flight of our Balloon Air CHerenkov (BACH) payload. BACH detects air Cherenkov radiation from cosmic ray nuclei as coincident flashes in two optical modules. The flight (dubbed PDQ–BACH) took place on April 22, 1998 from Ft. Sumner, New Mexico. During an exposure of 2.75 h, with a typical threshold energy for iron nuclei of 2.2×1013 eV, we observed several events cleanly identifiable as iron group nuclei. Analysis of the data yields a new flux measurement that is fully consistent with that reported by other investigations.
