Abstract
In this work the effects of the segmentation of the electrodes of Double Sided Silicon Strip Detectors (DSSSDs) are investigated. In order to characterize the response of the DSSSDs we perform a first experiment by using tandem beams of different energies directly sent on the detector and a second experiment by mean of a proton microbeam. Results show that the effective width of the inter-strip region and the efficiency for full energy detection, varies with both detected energy and bias voltage. The experimental results are qualitatively reproduced by a simplified model based on the Shockley-Ramo-Gunn framework.
Highlights
Segmented double sided silicon detectors (DSSSD) are widely used in nuclear physics to perform accurate measurements of angular distributions, or to study reactions where coincidences of different particles are required to fully characterize the final state of the interaction process
A first experiment was performed at the Laboratori Nazionali del Sud, Catania, with the aim to study the dependence of the interstrip effects on the beam energy, the ion species and polarization voltages. 7Li and 16O Tandem beams at energies between 10 and 50 MeV, with intensity of about 100 pps, were directly sent onto a 1000 μm thick Double Sided Silicon Strip Detectors (DSSSDs) placed along the beam direction
The response of Double Sided Silicon Strip Detectors and its dependence on the incident ion type, energy, and polarization voltage was studied in two different experiments
Summary
Segmented double sided silicon detectors (DSSSD) are widely used in nuclear physics to perform accurate measurements of angular distributions, or to study reactions where coincidences of different particles are required to fully characterize the final state of the interaction process. It is known that that particles entering the detector through the SiO2 insulating interstrip region, can produce signals with an amplitude which is different than the full energy and signals with an opposite polarity [1,2,3,4,5,6]. For this reason it is very important to be able to reject interstrip events by selecting only the events producing the correct full energy signals. We tried to identify an appropriate selection procedure of events which allows to maximize the efficiency for the full energy detection
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