Position sensitive Transient Current Technique (TCT)evaluation of irradiated 3D single column type detectors is presented. The detectors produced by FBK-irst were irradiated with neutrons to 1E14, 5E14 and 5E15 ncm-2. A pulsed IR laser light focused to a spot of 6 μm and scanned over the entire detector with 0.5 μm resolution is used to create electron hole pairs throughout the detector simulating m.i.p. For each laser beam position the induced current shape is measured for three neighboring channels. Charge collection and sharing, current pulse shape and timing properties are studied as a function of position, voltage and fluence.

Position Sensitive TCT Evaluation of Irradiated 3D-stc Detectors

Boscardin, Maurizio;Dalla Betta, Gian Franco;Piemonte, Claudio;Pozza, Alberto;Ronchin, Sabina;Zorzi, Nicola
2007

Abstract

Position sensitive Transient Current Technique (TCT)evaluation of irradiated 3D single column type detectors is presented. The detectors produced by FBK-irst were irradiated with neutrons to 1E14, 5E14 and 5E15 ncm-2. A pulsed IR laser light focused to a spot of 6 μm and scanned over the entire detector with 0.5 μm resolution is used to create electron hole pairs throughout the detector simulating m.i.p. For each laser beam position the induced current shape is measured for three neighboring channels. Charge collection and sharing, current pulse shape and timing properties are studied as a function of position, voltage and fluence.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11582/3917
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