Development of a new type of 137Cs/137mBa radioisotope generatorc

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Alejandro Amor Coarasa
Jorge Borroto Portela
José Griffith Martínez

Abstract

Results of the development and performance of a new type of /. generator are presented. Batch and column tests employing stable and radioactive CsCl were performed in order to determine the sorption parameters for three different cupper potassium hexacianferrate immobilized on silicagel ion exchange resin. Results showed that the sorption capacity of these systems can reach values in the order of 112 mmol/Kg of dry resin, comparable with those reported in the literature. The retention of more than 95% of cesium with practically no sorption of Barium, showed the high efficiency of these systems for the separation of these two elements. From these results a pilot small / generator, employing the same physical structure of a decayed generator, has been developed and constructed with a nominal activity of 18.5 KBq and a elution efficiency close to 99% that confirms the initial hypothesis of the separation of the pair / in these systems. More than 20 elutions performed after nearly a year and a half working with reliable hydrodynamic characteristics and the absence of in the eluted solution demonstrate the relative long functionality of the new type of / generator, that undoubtedly erect as the scientific newness of the present work.

Article Details

How to Cite
Amor Coarasa, A., Borroto Portela, J., & Griffith Martínez, J. (1). Development of a new type of 137Cs/137mBa radioisotope generatorc. Nucleus, (41). Retrieved from http://nucleus.cubaenergia.cu/index.php/nucleus/article/view/488
Section
Ciencias Nucleares

References

1. Guidebook on Radioisotope Tracers in Industry. Technical Report Series No 316.
2. TAKOI T. Liquid-liquid extraction of metal ions with cyclic ligand calixarene carboxyl derivates. J. Japan Society of Analytical Chemistry. 1998; 14 June.T.
3. INOUE Y, GOKEL GW. Complexation of Cationic Species by Crown Ethers. New York: Eds. Macel Dekker, 1990.
4. LEHTO J. The Nuclear Industry-Ion Exchange. In: Encyclopedia of Separation Science III. Eds. Cooke M, Poole CF. Academic Press. 2000: 3509-3517.
5. VARSHNEY KG. Inorganic Ion Exchangers in Chemical Analysis. Boca Raton: CRC Press, 1991.
6. DEYER A, QURESHI VARSHNEY MKG. (eds). Inorganic Ion Exchange in Chemical Analysis. Boca Ratón: CRC Press, 1991.
7. CLEARFIELD A, BORTUN LN, BORTUN AI. Crystalline Selective Inorganic Materials as Ion Exchangers. React. Funct. Polym. 2000; (43): 85.
8. TOMASBERGER T, VELTKAMP AC, BOOIJ AS, SCHERER UW. Radiocaesium Removal from Nuclear Waste. Radiochim. Acta, 2001; (89): 145.
9. ANTHONY RG, DOSCH RG, PHILIP CV. Method of Using Novel. Silicotitanates. US Patent Number 6, 110, 378. August 29, 2000.
10. MÖLER T. Selective Crystalline Inorganic Materials as Ion Exchangers in the Treatment of Nuclear Waste Solutions.. (PhD thesis). University of Helsinki. Faculty of Science. Department of Chemistry. Laboratory of Radiochemistry. 2002.
11. Colectivo de Autores. Inorganic ion exchangers for decontamination of radioactive wastes generated by the nuclear power plants. Report Series in Radiochemistry. Helsinki. 2004.
12. TUCSON AZ. Developmet of the sorption filtration technique for decontamination of low level liquid radioactive waste. In: Proceedings of the WM’01 Conference. February 25 -March 1. 2001.
13. SU CC. A Rapid Method for the Determination of 137Cs in Seawater. IESEP2000-021. IESAS685. TAO. 2000; 11 ( 4): 753-764.
14. SELION. Hexacianoferrate Ion exchanger (CsTreat®) for Cesium Removal. Selective Ion Exchange Technologies. August 1997.
15. CASEY D, GLASSON G. Union Carbide Mini-Generator. Department of Teaching and Learning. Virgnia Tech.
16. CORNEJO N. Software DETEFF - Manual del Usuario. CPHR. La Habana, 2004.