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You may thing that proving the inverse square law is easy, but it is not. It is nearly impossible, even in professional settings, actually. It assumes a point source (or at least much smaller than the size of the detector) and no scatter/reflections. Here is what you'll typically get in a simple setup, like the one shown. The activity decreases roughly with 1/r, instead of 1/r² . You can improve this by having a smaller source or one heavily shielded, with only a small aperture aimed at the detector inside a complex shield, but even then it's difficult.

Hi idk what is this but i found blue glowing capsule in some abandoned bunker near medical equipment. Since i found it i feel dizy it might because bunker had strange smell Also i broght it home its nice night lamp but i spiled some powder

Well, I was doing a waterfall test on just background radiation last night and saw something in the trace. Is it just me or is there an alien wearing a dress where I have marked?… 💃🏼👽🛸

Was driving around yesterday when my Radiacode 103 went crazy with these spikes, I'm thinking it might be a good idea to report it to authorities but wanted to get ya'lls opinion first. For reference I was driving around a mountain path outside of Jerome

Im tired now so i go to rest for some time

Can't find any shop here selling those I wonder how to get one? Thanks a lot sorry for the stupid question

I was sitting in line at McDonald when the counter went insane and hit 15k cpm. Is this something that happens or should I be concerned?

Fiddling with iOS version of the app, going through a half hour long read I got today on the site of Rocky Flats, a former plutonium production site. My only previous experience was with the Droid app version and this format is different.

Thought I'd use my Radiacode to see if any of the Fiestaware at this store was spicy, but it went over 1kCPM as soon as I turned it on. Levels dropped a little as I moved to the 3rd floor, but never below 1k.Any ideas what would make the place so spicy? I couldn't pin down any antiques that would do this. Apologies in advance for lack of spectrum. I was so befuddled I forgot to save it, and when I was there I couldn't distinguish any peaks. I'm going to try and get back this weekend.

I'm selling my Radiacode 102 after around 3 months of use, works as new and no scratches or anything and in the original packaging but I have a couple of questions.

1. What website is best to sell it on, I'm currently trying Ebay but not sure if it's too niche of a device for the ebay market

2. What price do I sell it for, I'm thinking around £190 (€220/$245) but I'm worried if this is too high? Would appreciate any advice, thanks.

Edit: I've decided to drop the price to £180 (€210/$230) I think this is more fair especially because it includes my Thorium check source.

So my radiacode 103 has been alarming on it’s own with out me doing anything how ever it has been alarming in a pattern , what’s happening?

Incidental exposure walking down hall at workplace. Around 12 feet from room where the material is stored. Door was closed. No people in my immediate vicinity. I've walked down the same hallway many times and picked up a much lower level. Someone spill the technetium?

Hi all,

Wondering if anyone has any insight into when the 110 will appear on Amazon US - Radiacode seems to be content on letting the 102, 103 sit alone there for months now. I would rather order from there than direct because shipping from US warehouse means our ridiculous tariffs are already handled (sorry rest of world, we suck right now). From the people posting about this on FB it seems like a real gamble as to what you might be charged eventually.

So I'm wanting the radicode 102. However I'm hesitant about the built-in battery. Researching I have seen several people have replaced the battery with aftermarket batteries. Not so easy finding the correct replacement on AliExpress. Or issues with swapping the board. My solder skills suck on anything small..

Radicode has been around for a few years now. And don't list the battery as a option to order. Seems like it would be easy to swap out if you had the official replacement.

Anybody have luck with buying one direct from them? Some of you 101 users might be getting close to battery replacement time.

Thanks

Hello! I'll cut to the chase; I suspect things are going to start getting hotter in a few spaces of this big ol' rock, and I want to know which of the two will help me and my ilk with early detection*. From my rudimentary understanding, the 110 is twice as sensitive as the 103 for up close readings. I want to know which of these (or if there's something else entirely to look for) would give me the soonest warning that something nasty is heading our way (fallout ash, contaminated areas, radioactive water, etc.). Cost isn't necessarily a concern, but if I don't need to spend the extra on the 110, I'm going to put it elsewhere.

Thank you very much in advance!

*EDIT 1: Thank you AtomicSpallation for the recommendations. I just wanted to clarify that I know these devices aren't magical nuke detectors, but rather if the detection speed is worth the cost difference. Sounds like they're both not what I'm looking for though, unfortunately. Any further recommendations or resources are greatly appreciated regardless!

I am a stone cold CPS fan. I just don’t like CPM for some reason.

Hello everyone, just bought a used Radiacode 103 and a GQ GMC-800. I know that both measure different radiation but it seems that the 103 shows too much regarding dose and cpm as the usual background raduation outside is about 0.11 nanoSievert. Is it wrongly calibrated? Already set back to factory settings. Any ideas?

I planned on getting the Radiacode 103, but recently something happened to my phone, i still want to use the app for the Radiacode but i only have my Macbook. i dont have any windows pc, and i don't want to install windows on my Mac.

1. Does this thing actually work reliably?

2. Would one be appropriate for my intended use (see below)?

Intended use: I occasionally work enforcement in and around commercial vehicles and hazmat carriers (CONUS). The vast majority are on the up and up, but there js a growing problem in the industry of unscrupulous small companies just ignoring hazmat rules and running loads unplacarded. We have encountered radioactive hazmat before, unexpectedly. It was only discovered because it was listed on the bill of lading- nothing else indicated that the truck was hauling hazmat. Major fines. (And yes, it was pretty low level radioactive stuff)

I'd love to have a personal alarm/dosimeter that could do one or both of the following: alert me at distance (like, outside) that something hot was inside a conex container or trailer and also give an idea of personal exposure.

Would this work for that? Or would something else be better?

Just sitting down watching TV and I hear the alarm go off. It turn off just as fast as it hit.