Electromagnetic and Thermal Simulations of Human Neurons for SAR Applications
Electromagnetic and Thermal Simulations of Human Neurons for SAR Applications作者机构：Department of Medicine Indiana University School of Medicine Indianapolis IN USA Department of Electrical and Computer Engineering (ECE) Indiana University Purdue University Indianapolis (IUPUI) Indianapolis IN USA Indiana University School of Medicine Indiana University Purdue University Indianapolis (IUPUI) Indianapolis IN USA Department of Bioengineering University of Illinois at Chicago Chicago IL USA Integrated Nanosystems Development Institute (INDI) Indiana University Purdue University Indianapolis (IUPUI) Indianapolis IN USA
出 版 物：《Journal of Biomedical Science and Engineering》 (生物医学工程（英文）)
年 卷 期：2016年第9卷第9期
页 面：437-444页
学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程]
主 题：EM (Electromagnetic) SAR (Specific Absorption Rate) COMSOL HFSS HN (Human Neuron)
摘 要：The impact of the electromagnetic waves (EM) on human neurons (HN) has been under investigation for decades, in efforts to understand the impact of cell phones (radiation) on human health, or radiation absorption by HN for medical diagnosis and treatment. Research issues including the wave frequency, power intensity, reflections and scattering, and penetration depths are of important considerations to be incorporated into the research study. In this study, computer simulation for the EM exposure to HN was studied for the purpose of determining the upper limits of the electric and magnetic field intensities, power consumption, reflections and transmissions, and the change in temperature resulting from the power absorption by human neurons. Both high frequency structural simulators (HFSS) from ANSYS software, and COMSOL multi-physics were used for the simulation of the EM transmissions and reflections, and the temperature profile within the cells, respectively. For the temperature profile estimation, the study considers an electrical source of 0.5 watt input power, 64 MHz. The EM simulation was looking into the uniformity of the fields within the sample cells. The size of the waveguide was set to be appropriate for a small animal model to be conducted in the future. The incident power was fully transmitted throughout the waveguide, and less than 1% reflections were observed from the simulation. The minimum reflected power near the sample under investigation was found to be with negligible reflected field strengths. The temperature profile resulting from the COMSOL simulation was found to be near 0.25 m°K, indicating no change in temperature on the neuro cells under the EM exposure. The paper details the simulation results for the EM response determined by HFSS, and temperature profile simulated by COMSOL.
维普期刊数据库