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Dielectric properties of developing rabbit brain at 37°C
Author(s) -
Thurai M.,
Steel M. C.,
Sheppard R. J.,
Grant E. H.
Publication year - 1985
Publication title -
bioelectromagnetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.435
H-Index - 81
eISSN - 1521-186X
pISSN - 0197-8462
DOI - 10.1002/bem.2250060304
Subject(s) - dielectric , dispersion (optics) , relaxation (psychology) , time domain , materials science , dielectric dispersion , frequency domain , debye , condensed matter physics , nuclear magnetic resonance , physics , mathematics , optics , permittivity , biology , neuroscience , optoelectronics , computer science , mathematical analysis , computer vision
The dielectric properties of developing rabbit brain were measured at 37°C between 10 MHz and 18 GHz using time domain and frequency domain systems. The results show a variation with age of the dielectric properties of brain. An analysis of the data suggests that the water dispersion in the brain of newly born animals can be represented by a Debye equation. This dispersion increases in complexity with age, and there is evidence of a smaller additional relaxation process centered around 1 GHz. It is concluded that the principal contribution to this subsidiary dispersion region arises from water of hydration.