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Type: 
Journal
Description: 
The direct measurement of reaction cross-sections at astrophysical energies often requires the use of solid targets of known thickness, isotopic composition, and stoichiometry that are able to withstand high beam currents for extended periods of time. Here, we report on the production and characterisation of isotopically enriched Ta2O5 targets for the study of proton-induced reactions at the Laboratory for Underground Nuclear Astrophysics facility of the Laboratori Nazionali del Gran Sasso. The targets were prepared by anodisation of tantalum backings in enriched water (up to 66% in 17O and up to 96% in 18O. Special care was devoted to minimising the presence of any contaminants that could induce unwanted background reactions with the beam in the energy region of astrophysical interest. Results from target characterisation measurements are reported, and the conclusions for proton capture …
Publisher: 
Springer Berlin Heidelberg
Publication date: 
1 Oct 2012
Authors: 

A Caciolli, DA Scott, A Di Leva, A Formicola, M Aliotta, M Anders, A Bellini, D Bemmerer, C Broggini, M Campeggio, P Corvisiero, R Depalo, Z Elekes, Zs Fülöp, G Gervino, A Guglielmetti, C Gustavino, Gy Gyürky, G Imbriani, M Junker, M Marta, R Menegazzo, E Napolitani, P Prati, V Rigato, V Roca, C Rolfs, C Rossi Alvarez, E Somorjai, C Salvo, O Straniero, F Strieder, T Szücs, Filippo Terrasi, HP Trautvetter, D Trezzi, LUNA Collaboration

Biblio References: 
Volume: 48 Issue: 10 Pages: 144
Origin: 
The European Physical Journal A