Characterization of CdTe 0.9Se 0.1:Cl strip detectors

CdTe _0.9Se _0.1:Cl is a detector grade material for gamma and X-rays. Its high resistivity and the high mobility lifetime product yield a high charge collection efficiency of 90 percent. CdTe _0.9Se _0.1:Cl was used for the first time to built up a strip detector. The detector performance was investigated by a ⁵⁷Co source. The signal behaviour, charge collection efficiency and coupling effects were analyzed for different strips. The comparison between the signal amplitude of all strips showed a good homogeneous response for the device. For a single strip a charge collection efficiency of more than 40 percent was obtained.