辐射研究与辐射工艺学报2026，Vol.44Issue(3)：157-162,6.DOI:10.11889/j.1000-3436.2025-0093
不同脉冲参数的微波对大鼠耳蜗热应力波影响的理论仿真
Theoretical simulation of the effects of microwaves with different pulse parameters on thermal stress waves in the cochlea of rats
王愉炜 1张杰1
作者信息
- 1. 华东师范大学物理学院 上海磁共振重点实验室 上海 200241
- 折叠
摘要
Abstract
A numerical simulation study was conducted to investigate the auditory effects in rats induced by pulsed microwave exposure.Based on a three-dimensional anatomically realistic rat model,the finite-difference time-domain(FDTD)method was employed to calculate the electromagnetic energy absorption in the rat body under microwave irradiation at different rise times and pulse widths.Subsequently,using the adiabatic approximation,the FDTD method was further applied to simulate the stress waves generated by the temperature rise caused by microwave absorption in the rat body.The results indicate that under specific pulse widths and irradiation conditions,the spectrum of the stress waves(thermoacoustic waves)excited in the rat model falls within the frequency range perceivable by the human(or rat)auditory system.Based on the simulation data,the threshold power for the microwave auditory effect in rats was estimated to be 0.6 kW/m2 under EyHx irradiation with a pulse width of 20 μs,a result that is consistent with the power threshold reported for the microwave auditory effect in humans.关键词
微波听觉/时域有限差分法/耳蜗/热应力波Key words
Microwave hearing/Finite-difference time-domain method/Cochlea/Thermal stress wave分类
生物科学引用本文复制引用
王愉炜,张杰..不同脉冲参数的微波对大鼠耳蜗热应力波影响的理论仿真[J].辐射研究与辐射工艺学报,2026,44(3):157-162,6.
