I made one of these, and it responds very well to Alpha radiation, but it does absolutely nothing with any other kind... I modified the schematic a bit to fit what parts I have, but how can it be so sensitive to alphas and nothing else?
@AtomicEmporium Alphas are vastly more ionising than beta and gamma, their large mass and high charge makes them interact more easily with atmospheric pressure gas. For best sensitivity the chamber air needs to be really dry, and some commercial devices replace the air with hydrocarbon gases, like propane. With a more non-trivial circuit you can make the device more sensitive, to the point you can just see the beta emissions from natural potassium salts. Take a look at Charles Wenzel's site.
heloo there!!srry for my english! i whant to make one of this: ) these are sensitiv tu gama and beta radiation?and what kind of container you use that material it is?did u rezolv the problem with buzzer ?pls anser me
@Cristi0986 Yes it is sensitive to beta and gamma/x-ray, it quite nicely detected gamma emissions from Tc-99m. The can is tinplate, it is a breath-mint tin. The problem? The circuit recovers eventually (20 seconds or so from full saturation) as the ions are swept out and the device leakages discharge the capacitances.
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thanks hey check out my channel
sillamookton 6 months ago
I made one of these, and it responds very well to Alpha radiation, but it does absolutely nothing with any other kind... I modified the schematic a bit to fit what parts I have, but how can it be so sensitive to alphas and nothing else?
AtomicEmporium 8 months ago
@AtomicEmporium Alphas are vastly more ionising than beta and gamma, their large mass and high charge makes them interact more easily with atmospheric pressure gas. For best sensitivity the chamber air needs to be really dry, and some commercial devices replace the air with hydrocarbon gases, like propane. With a more non-trivial circuit you can make the device more sensitive, to the point you can just see the beta emissions from natural potassium salts. Take a look at Charles Wenzel's site.
vk2zay 8 months ago
heloo there!!srry for my english! i whant to make one of this: ) these are sensitiv tu gama and beta radiation?and what kind of container you use that material it is?did u rezolv the problem with buzzer ?pls anser me
Cristi0986 1 year ago
@Cristi0986 Yes it is sensitive to beta and gamma/x-ray, it quite nicely detected gamma emissions from Tc-99m. The can is tinplate, it is a breath-mint tin. The problem? The circuit recovers eventually (20 seconds or so from full saturation) as the ions are swept out and the device leakages discharge the capacitances.
vk2zay 1 year ago
can you send me plans thats sweet
Huffdev 1 year ago
@Huffdev Details are on my site (linked in the description bar) which also links off to Charles' site with lots more radiation detection experiments.
vk2zay 1 year ago
@vk2zay O ok thanks
Huffdev 1 year ago
you cut your nails
nodrolabs 1 year ago 6
@nodrolabs is that a statement or a request/demand?
vk2zay 1 year ago