Search found 2 matches

by richardmeek
Fri Oct 16, 2015 8:52 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Bubble vs. Quantrad Ranger Plus
Replies: 15
Views: 6731

Re: Bubble vs. Quantrad Ranger Plus

George Dowell wrote:I'll have to look it up, it's been maybe 10 years since my work with that.

Meantime do a gamma scan of Cs-137 and show me the screen. Specifically where does the 661.7 peak show up?

Thanks
by richardmeek
Mon Oct 05, 2015 4:29 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Bubble vs. Quantrad Ranger Plus
Replies: 15
Views: 6731

Re: Bubble vs. Quantrad Ranger Plus

I find that the sodium iodide detector part of the Quantrad Ranger needs calibrating frequently, and daily testing. There's a backdoor manual way to do it with Cs-137 but you have to take the cover off to do it. I wrote that up maybe 10 years ago, it should still be on the web. The He3 neutron dete...