Was there some sort of calibration with some known radiation sources performed with the same NaI instrument in the lab setting. Say placing a Coleman lantern mantle, thorium laced, for a reading, or a banana or cupful of Salt Substitute KCl…. Plenty of known ‘reference radiation sources’ are easily within reach of the local Walmart or grocery store. Just to make sure the instrument was performing as expected?
How about the time series of the counts, hopefully the counts were binned in many files and not a single lumped file. Any insight on the instrument and its performance would be very useful. If Santa Cruz is as reported a high radon area then a simple filter collection will provide plenty of ‘radon fleas’ to study with the instrument. Quick and dirty - place a paper coffee filter over the end of a vacuum cleaner hose, run the vacuum for a time – say half an hour, stir up the dust in the room by sweeping the floor with a broom… examine the filter with the instrument. A longer slower collection seeking ‘radon fleas’ is easily accomplished with a computer CPU fan, box it in duct tape, apply the paper coffee filter, run for a few days, examine filter for flea signature. From: Bob Higgins [mailto:[email protected]] Sent: Wednesday, February 24, 2016 2:16 PM To: [email protected] Subject: Re: [Vo]:Big surprise or big dud ? Yeah ... I don't thinks so. Think about it. At 100,000,000K, you get some small output at 100keV. But, by the time you get to 1MeV, the blackbody radiation intensity is down by 40 orders of magnitude - I.E. by a factor of 1E-40 . So what are you saying, that some parts of the reaction are at 1 billion K and other parts are at 100 million K? The temperatures are just absurd. Can you check my calculations? On Wed, Feb 24, 2016 at 3:07 PM, Daniel Rocha <[email protected] <mailto:[email protected]> > wrote: Bob Higgins, It could really be a black body radiation. Consider many cooling bodies. They will have different black body distributions at different times. So what you see is the sum of many black bodies at different times of a cooling process. It will be steep at large temperatures, since it will be a brief time, due fast cooling. -- Daniel Rocha - RJ [email protected] <mailto:[email protected]>
