Participants
Valeriya Maljavko (Blr)
Roman Sverdlov (Blr)
Ivan Chagarin (Blr)
Darya Adamchuk (Blr)
Olga Popkova (Blr)
Supervisor
Ph. D. Oleg Dmitrievich Maslov, FLNR

Sector №8
Ion Exchange Separation of Cadmium and Rare Earth Elements
Track Analysis of Uranium

Cadmium purification
Possibility of 117m Sn production from 116 Cd on the 116 Cd(α, 3n) 117m Sn reaction

Microtron MT-25

Ion-exchange column Lavsan detector
Gamma spectrometer
With HP Ge detector

Experimental Technique
• To estimate the ion exchange separation of cadmium and rare earth elements, the mixture of CdSO
4 with DyCl
3 has been irradiated at the Microtron MT-25 by the and NdCl
3 bremsstrahlung beam of 22 MeV with the current of 5 µA during 2 h
• Separation of Cd and rare earth elements by using ionexchange 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
60 Co 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 NdCl
3 and DyCl
3

The gamma spectrum of Cd separated from Dy and Nd

Track analysis of uranium
Sample
Fe-Mn concretion
(standard)
Extract of rare earth elements
Extract of cadmium
Number of tracks Contents of U, g/g
584
52
72
5•10
0,45•10
0,6•10
-6
-6
-6

These experiments have shown a possibility of ion exchange separation of cadmium and rare earth elements for 117m Sn radionuclide production.
The content of uranium has been determined with the help of track method in the received samples.

Ph. D. Gospodin Bozhikov
Ph. D. Marina Gustova
M. Sc. Mario Philippov
Ph. D. Anatolij Belov