Participants

Valeriya Maljavko (Blr)

Darya Adamchuk (Blr)

Olga Popkova (Blr)

Roman Sverdlov (Blr)

Ph. D. Oleg Dmitrievich Maslov, FLNR

Ivan Chagarin (Blr)

Supervisor

Ion Exchange Separation of Cadmium and Rare Earth Elements

Track Analysis of Uranium

Sector №8

Scientific Problem:Cadmium purification

Application:Possibility of 117mSn production from 116Cd

on the 116Cd(α, 3n)117mSn reaction

Equipment that was usedMicrotron MT-25

Gamma spectrometer

With HP Ge detector

Ion-exchange column Lavsan detector

Experimental Technique• To estimate the ion exchange separation of cadmium and rare

earth elements, the mixture of CdSO4 with DyCl3 and NdCl3 has been irradiated at the Microtron MT-25 by the bremsstrahlung beam of 22 MeV with the current of 5 µA during 2 h

• Separation of Cd and rare earth elements by using ion-exchange column filled with anion-exchange resin Amberlite (IRA-401) in the presence of 2,5; 0,25; 0,02 mole/liter HCl was carried out

• Activity of the irradiated mixture was measured by HPGe detector of the gamma spectrometer of FLNR, JINR with the energy resolution of 1,5 keV at gamma lines of 1333 keV for 60Co radionuclide

• Track analysis of uranium was made in the received samples. The fission fragments produced by photons were recorded by lavsan detector (U(, f))

Separation of cadmium and rare earth elements by the use of anion exchange column

The gamma spectrum of the NdCl3 and DyCl3

The gamma spectrum of Cd separated from Dy and Nd

Track analysis of uranium

Sample Number of tracks Contents of U, g/g

Fe-Mn concretion (standard) 584 5•10-6

Extract of rare earth elements 52 0,45•10-6

Extract of cadmium 72 0,6•10-6

Conclusion

These experiments have shown a possibility of ion exchange separation of cadmium and rare earth elements for 117mSn radionuclide production.

The content of uranium has been determined with the help of track method in the received samples.

Special thanks

Ph. D. Gospodin Bozhikov

Ph. D. Marina Gustova

M. Sc. Mario Philippov

Ph. D. Anatolij Belov