Author/Authors :
Barbarito، نويسنده , , E. and Chiaradia، نويسنده , , M.T. and De Cataldo، نويسنده , , G. and Favuzzi، نويسنده , , C. and Giglietto، نويسنده , , N. and Mongelli، نويسنده , , M. and Perchiazzi، نويسنده , , M. and Rainٍ، نويسنده , , A. and Sacchetti، نويسنده , , A. and Spinelli، نويسنده , , P.، نويسنده ,
Abstract :
We have designed and tested some straw tubes prototype detectors to investigate the possibility to operate a full size chamber with extremely reduced gas leaks in a high vacuum environment in accelerator experiments or in sealed mode for astroparticle physics researches in outer space. After completing the tests we have finally built a tracking detector of 1300 channels which has run in a vacuum chamber in the experiment E864 at BNL with a leak of 7 × 10−3Torr l/s compatible with the permeability of the materials used.