Author/Authors :
Buttar، نويسنده , , C.M and Allport، نويسنده , , P.P and Carter، نويسنده , , J.R and Casse، نويسنده , , G and Costa، نويسنده , , M.J and Dawson، نويسنده , , I and Drage، نويسنده , , L.M and Greenall، نويسنده , , A and Grigson، نويسنده , , C and Harper، نويسنده , , R.S and Hill، نويسنده , , J.C and Johansen، نويسنده , , L.G and Moorhead، نويسنده , , G and Morgan، نويسنده , , D and Nicholson، نويسنده , , R and Phillips، نويسنده , , P and Riedler، نويسنده ,
Abstract :
The irradiation facility at the CERN proton synchrotron, set up to irradiate full-size prototypes of silicon microstrip detectors for the ATLAS semiconductor tracker, is described and measurements of the detector currents during irradiation are reported. The detector dark currents can be described by bulk radiation damage models demonstrating the radiation hardness of the detector design and allowing the current damage factor α and the acceptor introduction term β to be determined. Results from testbeam studies of a module with an irradiated detector and binary readout in a magnetic field and with the beam incident over a range of angles are reported. The hit efficiency and spatial resolution satisfy the requirements for the SCT provided the detector is operated at the full charge collection voltage. The Lorentz angle was not found to be affected by the irradiation.
