Prediction of the thermal release of transactinide elements (112 ≤ Z ≤ 116) from metals


Autoria(s): Wittwer, D.; Dressler, R.; Eichler, R.; Gäggeler, H. W.; Türler, A.
Data(s)

01/04/2013

Resumo

Metallic catcher foils have been investigated on their thermal release capabilities for future superheavy element studies. These catcher materials shall serve as connection between production and chemical investigation of superheavy elements (SHE) at vacuum conditions. The diffusion constants and activation energies of diffusion have been extrapolated for various catcher materials using an atomic volume based model. Release rates can now be estimated for predefined experimental conditions using the determined diffusion values. The potential release behavior of the volatile SHE Cn (E112), E113, Fl (E114), E115, and Lv (E116) from polycrystalline, metallic foils of Ni, Y, Zr, Nb, Mo, Hf, Ta, and W is predicted. Example calculations showed that Zr is the best suited material in terms of on-line release efficiency and long-term operation stability. If higher temperatures up to 2773 K are applicable, tungsten is suggested to be the material of choice for such experiments.

Formato

application/pdf

Identificador

http://boris.unibe.ch/46209/1/ract.2013.2027.pdf

Wittwer, D.; Dressler, R.; Eichler, R.; Gäggeler, H. W.; Türler, A. (2013). Prediction of the thermal release of transactinide elements (112 ≤ Z ≤ 116) from metals. Radiochimica Acta, 101(4), pp. 211-219. Oldenbourg 10.1524/ract.2013.2027 <http://dx.doi.org/10.1524/ract.2013.2027>

doi:10.7892/boris.46209

info:doi:10.1524/ract.2013.2027

urn:issn:2193-3405

Idioma(s)

eng

Publicador

Oldenbourg

Relação

http://boris.unibe.ch/46209/

Direitos

info:eu-repo/semantics/openAccess

Fonte

Wittwer, D.; Dressler, R.; Eichler, R.; Gäggeler, H. W.; Türler, A. (2013). Prediction of the thermal release of transactinide elements (112 ≤ Z ≤ 116) from metals. Radiochimica Acta, 101(4), pp. 211-219. Oldenbourg 10.1524/ract.2013.2027 <http://dx.doi.org/10.1524/ract.2013.2027>

Palavras-Chave #570 Life sciences; biology #540 Chemistry
Tipo

info:eu-repo/semantics/article

info:eu-repo/semantics/publishedVersion

PeerReviewed