Radium gamma spectrum

Not much doubt about what this is, but one peak is mis-identified as Cs-134. 

Odd, I thought I had posted in the gamma spectroscopy section. Oh well...
Yes, that peak is quite broad which is not helping, when the capture is complete perhaps it will be better defined (this is just 24hr). I'll open the data in InterSpec and see if that does a better job of isotope ID. The K40 is also probably something else - you can tell by the error being large. Such a large bandwidth of peaks I doubt I can get the 103 better calibrated across such a range, it won't do multi-peak fitting only a 3 peak registration. There is no smoothing of that data!