Author/Authors :
Haino، نويسنده , , S. and Abe، نويسنده , , K. and Anraku، نويسنده , , K. and Fuke، نويسنده , , H. and Hams، نويسنده , , T. and Ikeda، نويسنده , , N. and Itasaki، نويسنده , , A. and Izumi، نويسنده , , K. and Kumazawa، نويسنده , , T. and Lee، نويسنده , , M.H. and Maeno، نويسنده , , T. and Makida، نويسنده , , Y. and Matsuda، نويسنده , , S. and Matsui، نويسنده , , N. and Matsumoto، نويسنده , , H. and Matsumoto، نويسنده , , K. and Mitchell، نويسنده , , J.W. an، نويسنده ,
Abstract :
Balloon-borne Experiment with a Superconducting Spectrometer (BESS) is a balloon-borne spectrometer to study elementary particle phenomena in the early Universe as well as the origin and the propagation of cosmic radiation. The instrument has a unique feature of a thin superconducting solenoid which enables a large acceptance with a cylindrical configuration. Nine balloon flights have been successfully carried out since 1993. In 2002, the detector was upgraded as the BESS-TeV spectrometer to extend primary cosmic-ray spectra up to 1 TeV. For further studies of low-energy antiprotons, a new spectrometer, BESS-Polar, with a ultra-thin superconducting solenoid is being developed for long duration balloon flights in Antarctica.
