Author/Authors :
Akesson، نويسنده , , T and Baker، نويسنده , , K and Bondarenko، نويسنده , , V and Bytchkov، نويسنده , , V and Carling، نويسنده , , H and Danielsson، نويسنده , , H and Dittus، نويسنده , , F and Dolgoshein، نويسنده , , B and Dressnandt، نويسنده , , N and Ebenstein، نويسنده , , W.L. and Eerola، نويسنده , , P and Egede، نويسنده , , U and Farthouat، نويسنده , , P and Froidevaux، نويسنده , , D and Gavrilenko، نويسنده , , I and Grichkevitc، نويسنده ,
Abstract :
A prototype of the Transition Radiation Tracker (TRT) for the ATLAS experiment at the CERN LHC has been built and tested at the CERN SPS. Detailed studies of the drift-time measurements, alignment technique, hit registration efficiency, track and momentum accuracy were performed. A coordinate measurement accuracy of 150 μm for a single TRT drift tube and momentum resolution of 0.8% for 20 GeV pions in a 1.56 T magnetic field were achieved. The results obtained are in agreement with the expected tracking performance of the ATLAS TRT.
Keywords :
ATLAS , Transition radiation , Drift-time measurement , Tracking , Hit registration efficiency , Momentum resolution
