Abstract
The aim of the present work is to study the effect of magnetic field on thermally stimulated discharge current (TSDC) characteristics and dielectric properties of human blood and to derive the useful parameters for the evaluation of DC and AC relaxation process. The TSDC and dielectric parameters of blood samples have been recorded under the influence of magnetic field. In low-frequency region, $$\varepsilon^{\prime}$$ decays rapidly and attains almost constant value in higher-frequency region; however, variation of imaginary part of permittivity is not similar to $$\varepsilon^{\prime}$$ . The variation of complex permittivity e* is characterized by a broad peak. The area of curves decreases with the increase in applied magnetic field. The dielectric loss (tan δ) varies from 0.4 to 1.8. The tan δ is characterized by a peak in lower-frequency region. The origin for variation of dielectric properties is the reduction in impedance and change in conductivity under the influence of electric and magnetic field. The TSDC maxima are observed at 54 ± 3 °C and 75 ± 5 °C with heating rate of 3 °C min−1 assigned as β and α peak, respectively. The height of peak is observed to be increased with forming magnetic field; however, positions of peaks are almost same.
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