The last link is broken for me, is it region locked?
I'll look through the others but they are hosted on your own site which could be a credibility issue as I can't confirm if they are authentical publications of NASA or CERN. Do you have liks to the original source on each respective organisations web page?
Also I wondered the other day, what are the main precursors you aim to use? Many elements commonly used in these applications are produced in lower quantities than gold, isn't it a risk that the cost of the precursor will rapidly mirror that of gold?
Can you use common elements such as lead?