Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
Thick target yields calculated from the fitted excitation functions of 72Ge(p,n)72As and 72Ge(p,2n)71As reactions leading to the production of 72As and 71As, respectively. The literature data 19,21 normalised to the enrichment of 72Ge are also shown.
