Fusor Forums

Jon,
Wow! I was hoping you would have these results. Maybe my next fusor is one like this. Activation is really on of the best amateur uses of fusion. Thanks for the careful reporting.

Jim K

Jon, You are making good efforts trying to understand the neutron emission spatial characterization. I'm far from expert, but I sense that emissions in your latest device are too complex to understand with conventional detectors. CR-39 plastic placed at various orientations might shed some light. I ...

Thanks for the response Jon. I think your numbers being all over the place as you say illustrate my concern about inverse square simplicity. I think the relative size of the source, its non-point source nature, and the detector geometries confound it. I suspect MCNP would probably help but only afte...

I have held skepticism for some of the neutron numbers people have reported using bubble detectors for the small cross fusors because the geometry doesn't make sense to me. So, when Jon reports these numbers using his instruments my skepticism of other people's numbers is further supported. I think ...

Richard, I consider that particular fusor of yours somewhat historic because of the inspiration it provided many of us who visited. I wish I could be there to see it operate one more time, but alas, work obligations will keep me away. On behalf of myself and my family, congratulations on Fusor IV's ...

Hunter,
The pond was used by the facility for routine releases. Very low activity but the facility operated for a few decades. The pond may have accumulated.
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Point of trivia is that same pond provided water to the area for a couple hundred years.

Hunter,
When checking the UVA research reactor site try sampling the soil in the pond. If you find anything it will be there.

Jim K

Richard, Interesting that you find Th in your soil. There are some known Th deposits around southeast PA where I used to do most of my amateur measuring, but the radon source in the area of our former home in York was U. Way back when Mike was in the seventh grade he did a project that proved it by ...

Here is a picture of my travel rig. As Richard said before scintillators are high count rate. I usually leave my device on c/s, but the detector block is pretty amazing. In scaler mode I have been able to sense repeatably an old style smoke detector at 20 ft.

Richard, I definitely could be convinced that my spot on 95 is the road itself. The only way to be sure is to venture off the road and see. The spot you spoke about on 83 would have been in York County PA which was my former home for 34 years. I found the whole area full of hot spots. Recall that th...