Dielectric properties of developing rabbit brain at 37 degrees C.
The dielectric properties of developing rabbit brain were measured at 37 degrees 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.
D000818:Animals; D001834:Body Water / Q000502:physiology; D001921:Brain / Q000254:growth & development* / Q000502:physiology; D004553:Electric Conductivity; D066298:In Vitro Techniques; D011817:Rabbits; D013696:Temperature