Wanted: Help interpreting photon spectrum

["Edwards, Richard W" <Richard.Edwards@PSS.Boeing.com>]

Could someone with a more useful gamma catalog than I have help me with
this?

I recently ran a photon spectrum on some gold wire that had been hiding
away for a number of years. The history on this is irretrievable since
the person who was responsible for this retired a number of years ago
and has since passed away.

Here's what I have. The photon emission rates are highly suspect since I
suspect that there is a significant amount of self-shielding,
particularly at the lower energies.

Energy in keV	Photon emission rate (approx.)

802.96 +/- 0.25		17 photons/sec
80.17 +/- 0.02		>480 photons/sec
77.87 +/- 0.02		>1500 photons/sec
68.80 +/- 0.02		>4200 photons/sec
46.52 +/- 0.02		>1000 photon/sec

The age of the source and the 803 keV lines are the real kickers for me.
I can't figure out a nuclide or combination of nuclides that would
produce a spectrum like this without having a lot of other peaks
present. Even a 50,000 second count doesn't reveal anything other than
this and sum peaks of the x-ray emissions.

Rick Edwards, Analyst
richard.w.edwards@boeing.com