Author/Authors :
Barbarito، نويسنده , , E. and Bellotti، نويسنده , , R. and Cafagna، نويسنده , , F. and Castellano، نويسنده , , M. and De Cataldo، نويسنده , , G. and De Marzo، نويسنده , , C. and Favuzzi، نويسنده , , C. and Fusco، نويسنده , , P. and Giglietto، نويسنده , , N. and Guarnaccia، نويسنده , , P. and Mazziotta، نويسنده , , M.N. and Mongelli، نويسنده , , M. and Montaruli، نويسنده , , T. and Perchiazzi، نويسنده , , M. and Rainٍ، نويسنده , , A. and Sacchetti، نويسنده , , A. and Spinelli، نويسنده , , P.، نويسنده ,
Abstract :
We have designed and built a transition radiation detector of 36 m2 area in order to measure the residual energy of muons penetrating in the Gran Sasso cosmic ray underground laboratory up to the TeV region. It consists of three adjacent modules, each of 2 × 6 m2 area. Polystyrene square tubes, filled with a argon-carbon dioxide gas mixture, and polyethylene foam layers are used as proportional detectors and radiators respectively. We cover such a large surface with only 960 channels that provide adequate energy resolution and particle tracking for the astroparticle physics items to investigate. The detector has been calibrated using a reduced size prototype in a test beam. Results from one module exposed to cosmic rays at sea level are shown.
