In reply to Jones Beene's message of Mon, 5 Jun 2017 15:24:45 -0700: Hi, [snip] >Hi Robin, > >Yes but your Geiger counter is covering a wide spectrum, and the 1000 >counts are mostly at the low end... whereas the Focardi peak was fairly >sharp at 1.5 MeV if memory serves. > >That is an anomaly for sure, but a tiny one. > >However, maybe the Aussies are getting more rads than the rest of us. >Isn't there an ozone hole down under?
Sometimes, but not this far North (last time I checked). Furthermore the background level varies quite a bit based on location. I suspect it has more to do with radiation from the ground than from the air. Particular isotopes in some areas (Radon?) could produce a weak peak in some places. Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
