Irradiated SINTEF 3D sensor tests with PSI DAQ system Enver Alagoz 18 March 2012
Irradiated 3D SINTEF sensors Irradiated at Los Alamos LANCE facility in 2010 with 800 MeV protons Integrated fluence is 1,2, and 5E15 neq/cm2 Total 6 sensors Sensors seem fine but ROCs are dead except one 3D plaquettes placed in the environmental chamber Only working sensors is 4E_B2-10_1 Fluence = 1E15 neq/cm2 4 electrodes 200 µm thick
Leakage current
ROC pixel efficiency Pixel efficiency map Chamber @ -20 °C Sensor: 4E_B2-10_1 ϕ = 1E15 neq/cm2 Chamber @ -20 °C Pixel efficiency map
Threshold vs calibration delay Sensor: 4E_B2-10_1 ϕ = 1E15 neq/cm2 Chamber @ -20 °C Threshold vs calibration injection delay
ROC pixel address levels Address level decoding Chamber @ -20 °C Address levels Sensor: 4E_B2-10_1 ϕ = 1E15 neq/cm2
ROC calibration summary Chamber @ -20 °C Sensor: 4E_B2-10_1 ϕ = 1E15 neq/cm2
Noise scan Chamber @ -20 °C Sensor: 4E_B2-10_1 ϕ = 1E15 neq/cm2
Charge collection Sr-90 source: 1 mCi, Eβ = 0.546 ΜeV Random trigger used Chamber @ -20 °C Sensor: 4E_B2-10_1 ϕ = 1E15 neq/cm2 Vbias = -90V Thickness = 200 µm MPV = 9600 electrons
Charge collection scan Chamber @ -20 °C Sensor: 4E_B2-10_1 ϕ = 1E15 neq/cm2
ROC settings