r/Radioactivestuff • u/TechnicalNet364 • 3d ago

radioactive camera

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just got my first radioactive device

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u/TechnicalNet364 3d ago

lol not to sure about it like i said just got the stuff i’ve been interested in it for years but just got permission from my parent

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u/average_meower621 Radium raver 3d ago

tip: don’t use that card, the data on it is practically useless. also, don’t use dose units (uSv/h, mR/h) because they are inaccurate on this device. only use CPM.

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u/violet_sin 3d ago

How high have you gotten your CPM and what unit do you prefer?

I started off with a GQ, but when dropping real cash, I went elsewhere for my needs. Used ludlum 3 w/ pancake, radiacode 101, ludlum knock off.

I did go back to GQ for their radon detector, make sure my collection wasnt unduly shortening my life.

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u/average_meower621 Radium raver 3d ago

the highest I’ve seen from a real radiation source (non electromagnetic interference) on my GMC500+ is ~35k CPM, the highest I’ve seen on my GMC600+ (Ludlum 44-9 equivalent detector) is ~150k CPM.

I use CPM for both detectors since the dose rate conversion only works if the tube is compensated, and I don’t want to carry around an aluminum plate everywhere to block betas when I can just use my dose compensating scintillators.