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- W4381247879 abstract "Silicon-based fast time detectors have been widely used in high energy physics, nuclear physics, space exploration and other fields in recent years. However, silicon detectors often require complex low-temperature systems when operating in irradiation environment, and their detection performance decrease with the increase of irradiation dose. Compared with silicon, silicon carbide (SiC) has a wider bandgap, higher atomic displacement energy, saturated electron drift velocity and thermal conductivity. Simultaneously, the low gain avalanche detector avoids crosstalk and high noise from high multiplication due to its moderate gain, and thus can maintain a high detector signal without increasing noise. Thus, the 4H-SiC particle detector, especially the low gain avalanche detector has the potential to detect the minimal ionized particles (MIPs) under extreme irradiation and high temperature environments. In this work, the emphasis was placed on the design of a 4H-SiC Low Gain Avalanche Detector (LGAD), especially the epitaxial structure and technical process which played the main roles. In addition, a simulation tool--RASER(RAdiation SEmiconductoR) was developed to simulate the performances including the electrical properties and time resolution of the 4H-SiC LGAD we proposed. The working voltage and gain effectiveness of the LGAD were verified by the simulation of electrical performances. The time resolution of the LGAD is (35.0 $pm$ 0.2) ps under the electrical field of -800 V, which is better than that of the 4H-SiC PIN detector." @default.
- W4381247879 created "2023-06-20" @default.
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- W4381247879 date "2023-06-15" @default.
- W4381247879 modified "2023-09-26" @default.
- W4381247879 title "Design and simulation of a novel 4H-SiC LGAD timing device" @default.
- W4381247879 doi "https://doi.org/10.48550/arxiv.2306.09576" @default.
- W4381247879 hasPublicationYear "2023" @default.
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