Resumen
We report on the measurements of time resolution for double-sided 3D pixel sensors with a single cell of 50 μ" role="presentation">µµ
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. The time resolution measurements were conducted using a radioactive source at a temperature of -20 and 20 °C in a bias voltage range of 50?250 V. The reference time was provided by a low gain avalanche detector produced by Hamamatsu. The results are compared to measurements conducted prior to irradiation where a temporal resolution of about 50 ps was measured. These are the first ever timing measurements on an irradiated 3D sensor and which serve as a basis for understanding their performance and to explore the possibility of performing 4D tracking in high radiation environments, such as the innermost tracking layers of future high energy physics experiments.