THIS DETECTION IS INDICATIVE OF IODINE-133, IT IS NOT YET INDICATIVE OF NEPTUNIUM 239
The miss-identification occurred as a result of dividing the number of minutes by "24" to calculate hours, and then again by 24 to calculate days.
Maximum Alert, the 10/26/11 radioactive rain fallout has a
The short half life component in the fallout is currently unidentified, it has a calculated 58 minute half life. The expected composite half life of Radon 222 daughters is 36.5 minutes. Previous POTRBLOG short half life detections greater than 46 minutes have been associated with Coronal Mass Ejections.
The radioactive sample wipe was taken approximately 9:36pm 10/26/11. The sample was taken approximately 1/2 hour after the rain had stopped, and had a reading of 22X greater than background. The zero minute reading in the chart below corresponds to 10:08pm.
Please note that the vertical component in the chart below is Logarithmic in scale, this scale results in exponential curve fits to the data appearing as straight lines. The radioactive sample was contained in a Ziploc back, hence all Alpha radiation was blocked.
Click on the corrected chart to see a larger version.
Further Analysis is on going and updates will follow