SEARCHING FOR CLUSTER DECAY OF TH-232 - A CHEMICAL-SEPARATION SCHEME FOR NA-24 FROM THORIUM

Authors
DELMAS R LOOSNESKOVIC C BARTOS B BILEWICZ A HUSSONNOIS M ARDISSON G
Citation
R. Delmas et al., SEARCHING FOR CLUSTER DECAY OF TH-232 - A CHEMICAL-SEPARATION SCHEME FOR NA-24 FROM THORIUM, Radiochimica Acta, 76(4), 1997, pp. 181-184
Citations number
6
Categorie Soggetti
Nuclear Sciences & Tecnology","Chemistry Inorganic & Nuclear
Journal title
Radiochimica Acta → ACNP
ISSN journal
00338230
Volume
76
Issue
4
Year of publication
1997
Pages
181 - 184
Database
ISI
SICI code
0033-8230(1997)76:4<181:SFCDOT>2.0.ZU;2-1
Abstract
Spontaneous emission of neon clusters by Th-232 has been theoretically predicted. 10 kg of thorium may contain a few tens Na-24 atoms, the d ecay products of Ne-24. We have devised an ion-exchange separation sch eme for microamounts of Na from large quantities of Th-232 and its dau ghters. As a preliminary step, rests were performed with 10 g of Th an d Na-22 tracer. After a 3 h separation, sodium was recovered on 0.2 g of sorbent, with a yield greater than 97%. Decontamination factors are greater than 10(6) for Th and 10(5) for its radioactive daughters.