On the stability of (3)H and (63)Ni Ultima Gold liquid scintillation sources.

Détails

ID Serval
serval:BIB_4712C23B9948
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
On the stability of (3)H and (63)Ni Ultima Gold liquid scintillation sources.
Périodique
Applied Radiation and Isotopes
Auteur(s)
Nedjadi Y., Duc P.F., Bochud F., Bailat C.
ISSN
1872-9800 (Electronic)
ISSN-L
0969-8043
Statut éditorial
Publié
Date de publication
2016
Peer-reviewed
Oui
Volume
118
Pages
25-31
Langue
anglais
Résumé
The stability of (3)H and (63)Ni samples, made with Ultima Gold and Ultima Gold AB using eight aqueous fractions ranging between 0.1% and 10%, was monitored over a period of 32 weeks. Counting rate losses were measured in all cases, but were found to be particularly severe for samples with low aqueous fractions. Hydrodynamic diameter measurements of the reverse micelles of (3)H and (63)Ni in Ultima Gold and Ultima Gold AB samples were performed with dynamic light scattering. For Ultima Gold, the micelle diameters were measured to be about 2nm and slightly dependent of the aqueous fraction, while for Ultima Gold AB they were found to vary strongly with the aqueous fraction and range between 1 and 4nm. The hypothesis that the counting rate instabilities derive from changes in the sizes of micelles was tested by measuring them four times over the monitoring period. The measurement results do not support this claim.
Pubmed
Création de la notice
16/09/2016 21:40
Dernière modification de la notice
03/03/2018 16:49
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