KEYWORDS: Temperature metrology, Diffusion, Microwave radiation, Solids, Biomedical optics, Biological research, Medical research, Chemical elements, Tissue optics, Standards development
While generally inducing minimal heating in many biomedical applications, electric fields may still induce significant temperature gradients, particularly for pulses of short duration and AC (sinusoidal) fields of high frequency, such as microwaves. This paper extends a recent analysis of temperature gradients across a biological cell and membrane for single pulses [(A. L. Garner, et al., J. Appl. Phys.113, 214701 (2013).] to multiple pulses or AC fields where the time between the two pulses, or the period for AC signals, is shorter than the thermal diffusion time. We calculate profiles of the induced temperature changes and gradients across a biological cell for AC wave of different frequencies and show that the location of the peak temperature and gradient shifts toward the center of the cell during subsequent half-waves. Higher frequency fields induce higher temperature gradients with the temperature gradient shifts toward the center of the cell for subsequent cycles.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.