I am still running this scan but the element list is now:
?
Fe Hf Y Zr
?
I have also included an intermediate .mca file.
?
BTW my gamma scans show this is a combination of U238 and
Th232 decay chains.? I have attached scans of various cyrtolites
(including this one) whose Pb212 peaks at 238keV are relatively large,
indicating the presence of Th232.? The Pb214 peak at 295keV indicates
U238.