ABSTRACT
The authors proposed a method for the determination of 239Pu in wounds based on the measurement of the intensity of UL-x-ray radiation with the mean energy of 17 kev and concomitant gamma-radiation of 241Am. The correlation of the intensity of the gamma-lines of 241Am with the energies of 26.4 and 59.6 key is used for the unequivocal determination of the depth of radionuclide deposit. The isolation in the range of the gamma-line with the energy of 26.4 kev was performed using differential x-ray filters made of silver and cadmium placed in turn in front of the scintillation detector while recording radiations from a studied wound. This method ensures the required accuracy (+/- 20%) of the operative determination of plutonium in wounds employing simple and easily handled equipment.
