Transient behaviour analysis in silicon carbide alpha particle detector using TCAD and SRIM simulation
Authors:
- 11 June 2024
- journal article
- research article
- Published by IOP Publishing in Physica Scripta
- Vol. 99 (7) , 075943
Abstract
Time response characteristics of α particle detector are crucial for monitoring radiation fields varied with time and its characterization of pulse radiation field. Here, SRIM-informed TCAD simulation is utilized to visually investigate the transient behaviors of carriers and alpha particles in 4H-SiC Schottky barrier detectors for the time response characteristics. We identified external bias voltage and incident particle energy as key factors to influence transient current pulse broadening. Low-energy alpha particles result in low initial kinetic energy of the ionization-generated carriers, leading to transient current broadening and reduced time resolution characteristics. Conversely, high-energy alpha particles ionize carrier with high drift velocity, preventing the broadening effect. Our simulation provides a planform and valuable guidance for optimizing alpha particle detector, selecting appropriate bias voltages, and enhancing time resolution capabilities.Keywords
Funding Information
- National Natural Science Foundation of China (61675046)
- Key Laboratory of Semiconductor Materials Science (KLSMS-2204)
This publication has 27 references indexed in Scilit:
- Radiation tolerance analysis of 4H-SiC PIN diode detectors for neutron irradiationSensors and Actuators A: Physical, 2022
- Role of deep levels and barrier height lowering in current-flow mechanism in 150 μm thick epitaxial n-type 4H–SiC Schottky barrier radiation detectorsApplied Physics Letters, 2021
- Study of Schottky barrier detectors based on a high quality 4H-SiC epitaxial layer with different thicknessApplied Surface Science, 2021
- Response of Superheated Emulsion Detectors to low energy alpha irradiationNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2020
- Organic scintillator-based alpha/beta detector for radiological decontaminationNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2019
- Response of a Li-glass/multi-anode photomultiplier detector to -particles from 241AmNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2019
- A timing detector for the SHiP experimentNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2019
- Simulation of 4H-SiC detectors for ultra fast particle spectroscopyJournal of Instrumentation, 2015
- High resolution alpha particle detection using 4H–SiC epitaxial layers: Fabrication, characterization, and noise analysisNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2013
- SRIM – The stopping and range of ions in matter (2010)Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2010