Abstract.
A method is suggested for improving the
immunity for radiothermography of biological objects. The method uses the subtraction
of currents in receiving antennas. These currents are excited by thermal
radiation of biological object and probably by the same frequency range
radiation from outside of the object. The receiving antennas are placed near
the object surface. Under incidence of the electromagnetic radiation in
antennas are excited electric currents. These excited currents are self
consistent because of antennas wave coupling, and satisfy a set of equations
which in the case of antennas in the form of thin wire vibrator-dipoles tune to
half wavelength becomes a set of algebraic equations. It is shown that wave
coupling between receiving vibrator-dipoles at near distances, small in
comparison with their length, has resonant property and therefore the
difference of currents excited in such vibrator-dipoles by incident thermal
radiation from biological object
increases in the ratio of vibrator-dipole length to distant between them. The
similar formula is applicable also in the case when currents in half wavelength
vibrator-dipoles are excited by electromagnetic radiation from outside the
biological object, propagating in free space. In result one gets that relation
between the difference of currents excited in receiving vibrator-dipoles by
biological object thermal radiation and the difference of currents excited by
electromagnetic radiation from outside the object is equal to ratio of
wavelength in free space to wavelength in the object medium. This ratio in the case
of human head brain and
GGz radiation
frequency range is about 6.
Key
words: radiothermography, biological
objects, immunity.
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