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Author(s): G.K. Tiwari, N.K.Gupta, H.V. Tiwary

Email(s): Email ID Not Available

Address: School of Studies in Electronics, Pt. Ravishankar Shukla University, Raipur (C.G.)

Published In:   Volume - 15,      Issue - 1,     Year - 2002


Cite this article:
Tiwari, Gupta and Tiwary (2002). Effect of radiationdose on biological tissuesat microwave frequencies. Journal of Ravishankar University (Part-B: Science), 15(1), pp.17-22.



Journal of Ravishankar University  Vol 15-16  No B (Science)2002-2003 pp 17 -22 ISSN 0970-5910

Effect of radiationdose on biological tissuesat microwave frequencies

G.K. Tiwari,  N.K.Gupta and H.V. Tiwary

School of  Studies in Electronics, Pt. Ravishankar    Shukla University, Raipur  (C.G.)

Ms  :    Received  :   15/7/2002  Revised :    7/4/2003  Accepted  :  23/6/2003

Abstract :  An attempt is made to investigate theoretically the effect of radiation  doses  on  biological  bodies.  In this regard, the theoretical techniquetor the computation of absorbed energy within dielectric spherical model of human brain have been used to obtain the biologically effective radiation dose in units of rad equivalent mammal(rem). Using the published value for  dielectric  properties  and conductivity  of  human brain tissues and the value of E2 generated by assuming human head of 8 cm radii sphere as irradiated by plane wave, and the variation of absorbed energy with variation  in human brain tissues depth are investigated.  It is found.   That energy absorbed decreases with increasing depth of biological bodies (i.e. in the deep muscle). Further, the quantlzation of cellular death has been obtained for higher radiation doses absorbed by biological bodies, using Poisson statistics. It is found that survival fractions of cells decrease continuously with increasing radiation doses.

Key words:   Poissonstatistics, Specificabsorption rate. QuantizationRem.

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Author(s): G.K. Tiwari; N.K.Gupta; H.V. Tiwary

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