A Study of the Radiation Tolerance and Timing Properties of 3D Diamond Detectors
Year: 2022
Authors: Anderlini L., Bellini M., Cindro V., Corsi C., Kanxheri K., Lagomarsino S., Lucarelli C., Morozzi A., Passaleva G., Passeri D., Sciortino S., Servoli L., Veltri M.
Autors Affiliation: Natl Inst Nucl Phys Florence, I-50019 Florence, Italy; Natl Inst Opt CNR Florence, I-50019 Florence, Italy; LENS European Lab Nonlinear Spect Florence, I-50019 Florence, Italy; Univ Florence, Dept Phys & Astron, I-50019 Florence, Italy; Jozef Stefan Inst, Ljubljana 1000, Slovenia; Univ Perugia, Dept Phys & Geol, I-06100 Perugia, Italy; Natl Inst Nucl Phys Perugia, I-06123 Perugia, Italy; Univ Siegen, Lab Nanoopt, D-57076 Siegen, Germany; Univ Perugia, Engn Dept, I-06123 Perugia, Italy; Univ Urbino, Dept Pure & Appl Sci, I-61029 Urbino, Italy.
Abstract: We present a study on the radiation tolerance and timing properties of 3D diamond detectors fabricated by laser engineering on synthetic Chemical Vapor Deposited (CVD) plates. We evaluated the radiation hardness of the sensors using Charge Collection Efficiency (CCE) measurements after neutron fluences up to 10(16) n/cm(2) (1 MeV equivalent.) The radiation tolerance is significantly higher when moving from standard planar architecture to 3D architecture and increases with the increasing density of the columnar electrodes. Also, the maximum applicable bias voltage before electric breakdown increases significantly after high fluence irradiation, possibly due to the passivation of defects. The experimental analysis allowed us to predict the performance of the devices at higher fluence levels, well in the range of 10(16) n/cm(2). We summarize the recent results on the time resolution measurements of our test sensors after optimization of the laser fabrication process and outline future activity in developing pixel tracking systems for high luminosity particle physics experiments.
Journal/Review: SENSORS
Volume: 22 (22) Pages from: 8722-1 to: 8722-16
More Information: This research was funded by INFN as part of the 3D_SOD, 3DOSE and Timespot initiatives. It has also received funding (for neutron irradiation) from the European Union’s Horizon 2020 Research and Innovation program under Grant Agreement No. 654168.KeyWords: CVD diamond; diamond sensors; laser engineering; timing measurements; radiation hardnessDOI: 10.3390/s22228722Citations: 4data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-09-15References taken from IsiWeb of Knowledge: (subscribers only)