KINETICS OF THE TEMPERATURE FIELDS IN 
A LIGHT-SCATTERING LAYER HEATEDBY A RADIANT FLUX
A. P. Ivanov and E. I. Vitkin

UDC 536.33

The process of heating and cooling down of a light-scattering 
and absorbing plane-parallel layer irradiated by a light pulse is 
discussed. Results are obtained by solving numerically the differential 
equations of radiation transfer and heat conduction. By the method 
of finite-difference approximation of space derivatives the problem 
is reduced to a system of ordinary differential equations with respect 
to time for the temperature at each point of the layer. Results of 
calculations for different durations and powers of pulses and different 
optical and thermophysical parameters of the medium are reported. 
A comparison is made of the characteristics of temperature processes 
in the layer on the source side of incidence of a light pulse and 
on the opposite side.

B. I. Stepanov Institute of Physics of the National Academy 
of Sciences of Belarus, Minsk, Belarus. Translated from Inzhenerno-Fizicheskii 
Zhurnal, Vol. 74, No. 4, pp. 134-137, July-August, 2001. 
Original article submitted December 12, 2000.

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