Brainiac75
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Three Geiger Counters Challenged | Weak and STRONG samples
🕑 Added 2019-02-28 19:02:50 +0000 UTCIt may seem in accordance with ALARP that I rarely make videos about my radioactive samples. But it is mostly because I haven't added anything to my collection for four years since my latest video on the subject.
When RadiaScan reached out to me offering one of their RadiaScan-701A Geiger counters for a video, I said yes. It could be my chance to finally get a reading on my strongest sample that my two current Geiger counters failed on. And it should be able to detect very weak sources too. In this video I share the results of my testing with you.
Comments
Thanks Tobias. The pancake probe in the RadiaScan isn't the largest on the market but it sure makes a difference as shown with the tritium vials. I need to test it further but the Gamma-Scout should be better at detecting low-energy alphas, since it may have a small but also very thin mica window - letting low-energy alphas pass through. Pancake-probes are difficult to make with very thin mica windows - they will simply be to fragile to handle :) But yes, a gamma scintillator and pancake probe Geiger counter could be a good match for detecting a wide range of radiation types and energies. I really hope to get a gamma scintillator at some point! (Gammaspectacular seems 'affordable').
Nice video and shows the strengths of a pancake detector (RadiaScan-701A) compared to normal GM tubes mostly sensitive to gammas and a bit betas (Soeks 01M Plus) or with thin windows (GammaScout) some alphas too. Something worth considering as a completion to my gamma scintillator for high sensitive background logging.
