Author/Authors :
Johnson، نويسنده , , I. and Amsler، نويسنده , , C. and Chiochia، نويسنده , , V. and Dorokhov، نويسنده , , A. and Pruys، نويسنده , , H. and Regenfus، نويسنده , , C. and Rochet، نويسنده , , J.، نويسنده ,
Abstract :
A geometric model of charge collection has been developed to measure the Lorentz angle in silicon sensors. The model relates the track inclination to the average cluster width. A Lorentz angle of 19.6 ± 0 . 27 - 0.5 + 1.0 ∘ was measured by fitting the model to cosmic ray data collected with the double-sided silicon strip sensors of the ATHENA antihydrogen detector. This measurement corresponds to holes drifting in sensors operated at 130 K, in a 3 T magnetic field and with an average internal electric field of 1.3 kV/cm. Comparisons of charge sharing between strips and track residuals for data taken with and without magnetic field are also presented and support this measurement.
