METHOD OF MEASURING TEMPERATURE IN AREAS WITH IONISING RADIATION Russian patent published in 2010 - IPC G01K11/32 G01J5/60 

FIELD: physics.

SUBSTANCE: method of measuring temperature in areas with ionising radiation involves putting a sample of fissile material into a reactor core, placing near a fibre-optic guide made from the same material as an additional light guide in form of a loop. Thermal radiation from the surface of the sample of fissile material is output through the fibre-optic guide. Luminosity is measured in at least two spectral ranges, from which temperature of the analysed sample is determined. Optical radiation is transmitted to the additional light guide in form of a loop and the measured temperature is corrected using change in transparency of the light guide loop in the same spectral ranges. The optical source is a photometric lamp with a tape incandescent body.

EFFECT: design of a method of detecting the temperature field of samples of fissile material in certain local points when burnt through pulsed irradiation with reactor neutrons.

2 cl, 1 dwg