¿ªÔÆÌåÓýNick where is the Po212 at 8.78 MeV coming from? It will be useful when we post data to give all the parameters of that run. The spectra is really says nothing without knowing the peak count, count time and volume sampled, so label those files with respect to the Radon counts. Sample time is flow rate (l/min) divided by 1000* M^3 volume. When comparing filters we need to run in the same Rn concentration and for the same flow rate and time. I¡¯ll post the PTFE filter data after a couple of hours. Dud ? From:
[email protected] [mailto:[email protected]] On Behalf Of Nick Andrews ? This was with a filter I made by folding card stock in half and sandwiching a piece of Geo's filter roll inside.? I punched 1" holes with a gasket punch.? ?Note that I did not punch the two small holes near the top as I don't see anything in there that would even know they are there.? ? I was thinking you could even just swap the actual filter material and reuse the paper card,? but it's possible for that to get contaminated.? ?I didn't measure the size of the opening in the sensor head.? ? On Fri, Jul 1, 2022, 1:47 PM Dude <dfemer@...>
wrote:
|