Search found 142 matches

by George Dowell
Tue Jun 30, 2015 7:31 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: NAA Tungsten
Replies: 15
Views: 5806

Re: NAA Tungsten

Thanks for the clarification Richard. I'm interested in all aspects of nuclear and atomic ionizing radiation and electromagnetic non ionizing radiation detection and shielding. George Dowell Remember, this forum is all about radiation detection. Not just neutrons. Gamma Spec talk is always welcome a...
by George Dowell
Tue Jun 30, 2015 1:38 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: NAA Tungsten
Replies: 15
Views: 5806

Re: NAA Tungsten

Hi Peter, please send me a direct email so we don't clutter up the board with non fusor stuff. George Dowell GEOelectronics@netscape.com George I ran across your site searching for GR-130 DOS software some time ago, a big thanks for making it available. With the software I was able to understand the...
by George Dowell
Sun Jun 28, 2015 5:59 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: NAA Tungsten
Replies: 15
Views: 5806

NAA Tungsten

Newcomers might be interested in this neutron activation experiment. When W-186 (one of the several naturally occurring 'stable' tungsten isotopes) is neutron irradiated some of the atoms pick up an extra neutron to become W-187 which is radioactive and can be measured easily with amateur equipment....
by George Dowell
Sun Jun 28, 2015 5:37 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Mating Ludlum 2000 and He3 tube
Replies: 5
Views: 2459

Re: Mating Ludlum 2000 and He3 tube

Called Ludlums and that was almost too easy. Getting a 39 in. C to BNC cable for $59- less than what it would be to scrounge stuff together off ebay. Don't feel like I got gouged anyway like with turbo and vacuum instrument cables. 1750V was optimum when it was tested. Don't know if that translates...
by George Dowell
Mon Mar 09, 2015 7:27 pm
Forum: Images du Jour
Topic: Cutting ceramic with handyman tools
Replies: 4
Views: 2144

Re: Cutting ceramic with handyman tools

Caveat Emptor drilling electronics related ceramics- often are beryllium oxides- inhalation hazard.

George Dowell
by George Dowell
Mon Mar 25, 2013 1:00 am
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Clean out @ work
Replies: 6
Views: 3321

Re: Clean out @ work

Everywhere I worked had registered "trash". It was shreded.
Papers were shreded on the site. More like pulverized to dust.

George Dowell
by George Dowell
Fri Feb 22, 2013 5:15 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Decay of Technetium 99m or living with a science nerd (my poor Wife!!!)
Replies: 5
Views: 2424

Re: Decay of Technetium 99m or living with a science nerd (my poor Wife!!!)

<r>A good way to log these short half life metastable isotopes is to use the MultiChannel Scaler function of your MCA.<br/> <br/> George Dowell<br/> <br/> <br/> <URL url="http://www.qsl.net/k/k0ff/Generating%20Metastable%20Isotopes%20of%20Short%20Half-Life%20in%20the%20Home%20Lab/"><LINK_TEXT text="...
by George Dowell
Wed Feb 20, 2013 10:24 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Desparately seeking Susan and a Schematic- Bicron Labtech
Replies: 9
Views: 4165

Re: Desparately seeking Susan and a Schematic- Bicron Labtech

<r>Queried a good friend, retired from the business. Reply was:<br/> <br/> "Did find full detailed Bicron LabTech scaler manual,it's about 30 pages, but 10 or so are large fold outs (schematics and parts layout), more than I can handle with my copier. Will have to bring to Kinko and use their large ...