The tube is a vacuum tube with an anode and cathode in it (under a relatively high voltage when it's on), and a very low pressure gas charge. The clicks are when a high energy particle knocks off electrons of a gas particle, and these electrons also collide with other gas particles etc., resulting in an electron avalanche, which the device detects as a tiny spike of current flowing through the tube.
@@taylorindustries Not true. All Geiger counters use low-pressure gas-filled tubes. There are little solid-state devices that use PIN diodes, but are not much more than toys on keyrings. You might be confusing NaI scintillation detectors which are solid but use a PM tube (which is fragile!) - but those only respond to gamma radiation, not to beta or alpha particle radiation.
Nice video. I repair those mini 900's at our University in the UK. The exponential reponse in counts up-close is normal for a healthy tube but be careful not to leave it counting above 500cps for too long when using your check source as those G-M's have a finite life of around 5x1010 from new. >1Kcps is close to saturation and at $500+ for a replacement tube you'll wanna keep it working for when you need it! Happy counting XX
Thanks for making this video its too late I already baught the emf detector and not a radiation detector. But I'm glad I did I've been sleeping next to a high emf and might explain why I don't sleep well.
I talked to ISS on way to work one day on my kenwood 710a blew be a away so awesome wh had old school geiger on navy ships I was damaged control and got to play with all the CBR stuff for maintenance
Watching your video reminded me I need to place my sample of americium 241 in a storage container. I was using it in a cloud chamber I built last week.
I'm glad I watched this. I didn't realize you had to put the detector so close to smaller stuff in order to even detect it. Have been considering getting one of these to make sure seafood like kelp isn't contaminated from fukushima. But if you have to get the detector that close I'd have to measure really small amounts at a time.
In order to detect such miniscule amount of radiation you will need a scintillation detector which is capable to do gamma spectromerty in order to distinguish any potassium isotopes from the nucleids originating from Fukushima. Depending on where you live it might be useful. In Ukraine you can easily buy blueberries which are contaminated with Caesium 137.
@@aeridyne Well, at the fallout area of chernobyl the plants, animals are contaminated. Also check on the "Chelyabinsk" incident at the "Mayak" nuclear/chemical plant. It has almost as big impact as Chernobyl but in Russia. A lot of villages had to be evacuated.
They do work, but they sell them as snake oil for the most part. Typically to anyone who thinks your basic low energy electromagnetic radiation (UV or lower) is going to kill you.
Txtrooper02 - I'm doing my homework but it's very confusing...which model to choose, but this video is great....what did you buy? I want to be able to detect alpha, beta, gamma EMF
a radalert 50 is a pretty good model, heard a lot of goo things about it from many many people, including this video... I think a CFC-700 would be a good option and I am trying to buy one. If you want you could modify it and add a mica window to the tube in order to pic up alpha.
I bought the stupid one, and the good thing about it.. i have a lot of fun discovering electromagnetic fields sources at my surroundings while being safe.. but the other two types will barely/never beep unless you expose them to dangerous material or at least a fire detector thing..
I would avoid Placing the Am-241 source close to your eyes, although Am-241 is primarily an Alpha emitter, but does give off weak Gamma rays, which inevitably damage the eyes. It is also advisable that you do not handle the Am-241 pellet with your bear hands. While it is unlikely that you will contaminate your hands it is not inconceivable that you can contaminate your hands with a fairly high energy Alpha emitting isotope, and potentially ingesting it.
The electromagnetic tester sure has it purpose. It's to measure non ionizing electromagnetic radiation. Like microwaves which you shouldn't get a ton of high intensitive in the long run but none the less is a whole other and much less destructive beast than ionizing radiation. So geiger counters = ionizing radiation tester - that include x-rays which can be generated electrically using electron tubes (which are not radioactive). Electromagnetic radiation testers = tester for non ionizing electromagnetic radiation - ordinary radiowaves of which microwave spectrum is the most debated but need to be very high powered to cause significant damage.
I've found that when you are looking for radiation detectors it's best to put "ionizing radiation detectors" in the search. This will limit the "electromagnetic radiation detector results. I found a device called the Reed R8008 radiation meter. It detects alpha and beta radiation as well as x rays and gamma rays. It's not cheap. Over 500. But it probably does the trick.
Thanks for the vid my grandfather used to be a ham operator I wish my dad kept all his stuff but he had a ton. Any good cheap rad detectors on the market these days ?
I tried to find the rad alert 50 anywhere and couldn’t find it at all, strange. But I did find the 900$ but is very pricey as well over 250$ after shopping
I fell for a different kind of radiation detector that doesn’t suit my needs. I bought a Cdv-710 model five off of eBay, it turned out to be only able to pick up gamma and only if you had lots of it. It’s also technically an ionization chamber rather than a Geiger counter. Wish I had known that before buying, it would be good for its purpose, seeing if a nuclear blast zone is safe, but was not sold as that sort of thing.
bulldogmack407Sales, have you seen GQ Electronics's GMC-320 Plus V5 nuclear radiation detector?... I bought one a few months ago... they're definitely awesome. These sets you're showing here are nice, too. That's a good point, warning folks about that EMR detector. (03:41) That set's nice too, for it's purpose. Years ago I built a homemade EMR detector using an electric guitar pickup for the sensor and fed that into an audio amp board that I salvaged out of a little cassette player, and had the amp feeding a speaker/headphone, and it also drove a microammeter through a rectifier for visual indications, and I built those parts into a hand-held metal box with the guitar pickup mounted on top of the box. Eventually I added a bridge rectifier made from four 1N34A diodes and a telescoping antenna and a switch to select between either the guitar pickup for general EMR and the bridge for RF radiation detection... it was fun experimenting with that thing. :-) Building a home-brew nuclear radiation detector is on my mind, nowadays... I gotta get the parts together and dust off the soldering iron and start. I'm going to make one that will audibly indicate the actual sounds of the particles. Thanks for a great video bulldogmack407Sales :-)
I just want to walk around my house and neighborhood and various shopping establishments with a geiger counter that has that classic audio that you always hear when anybody in a movie uses a geiger counter. Maybe there are some hot spots that nobody is really even aware of in your local grocery store.
What I want to buy a geiger counter for is to prepare a little bit for a nuclear war... what should i be looking for.. dosimeters what to look for, thanks
"Im going to hold it in front of the particle window" Me: HOLY SHIT "Im missing the window a little bit" (RadAlert starts screaming) Me: ASUPUTAMADREosdfnvwmevmdcñqm`80j2fnNJNHNK
@@TooManyProjectsTooLittleTime Update: I bought a $49.99 Radiation Detector on eBay, and surprise surprise, i have a vintage Omega wristwatch in a drawer putting out like 4 microsieverts an hour...
Anything but the EMF detector here will work. There are several older Civil Defense models you can buy for cheap that would be good for fallout. Actually this is precisely what these units were designed for. Check ebay and marketplace, they are usually yellow with a big handle on them.
To be fair nuclear radiation includes multiple types alpha beta and gamma, alpha being a helium nucleus, beta an electron, and gamma yes actually being a wave on the electromagnetic spectrum. Now technically that $12 dollar "geiger counter", which you should not buy for radiation detection, should detect at least gamma but as your video proves it obviously does not. Which probably means as you said it's not meant to detect nuclear radiation. Just wanted to clear up that at least technically gamma is electromagnetic radiation with beta and alpha not being waves.
Really helpful! I was looking at the kkmoon one and before buying it, I was suspicious of the price and so I was reading through the specs and realised it was a electromagnetic radiation detector, not nuclear radiation detector, not a proper gmc. I was also interested my the Americium, I knew it was radioactive and I have been looking at getting some for my collection but I didn't realise it was that radioactive!
want to test emf from 11kv wires and transformer near my house. Is kkmoon good for that. This equipment fits in my budget and i only want to test emf. And does this gadget give basic result whether emfs are safe or not. Like i dont want accurate reading just basic one about whether emf levels are safe arount my house
In the event of a nuclear war with EMP bursts would any of this equipment be made useless? Just wondering if there is any point buying equipment if it isn't going to be functioning after an attack?
If you are far enough to survive the blast then your equipment would most likely be completely functional. Your better off having it either way, there is a possibility of it being damaged but that's definitely a risk worth taking if there is a nuclear attack. Let's hope world events don't cause us to find out!
Great video bro keep on posting. I wanted to buy radiation detector and I find this very helpful thx bro. That little piece of metal Waww so dangerous and was so high!!! I'm wandering if I check Those Cell towers How high will be 🙄 So Scary That can make You So tired And give you fatigue And sometimes head pain And Also Kills Ur DNA I BELIEVE So.
i saw your experiment of radiation with gieger counter can you test it on crt tv and telk me diffrence between backround radaition and radiation from crt please please
Honestly anything that detects nuclear radiation will be fine, especially with the levels there. I cant comment much on specific brands as I really have not done any brand specific testing. The Radalert in the video would be your best bet cost wise and simply for its portability.
The Terra-P is very popular. Its small and fits in your pocket. Made in the Ukraine and did a lot of research before getting it. A lot of explorers get them and decent price, around $300 to 350 new.
Definitely, Dmitry... at 03:41 he's saying that the electromagnetic radiation detector might show up while searching for Geiger-counters in Amazon, etc, and he says to NOT get confused and think that that device will show nuclear radiation and buy one. He's saying don't buy one of those electromagnetic radiation detectors because it won't show nuclear radiation.... he did good. :-)
How often do your instruments need to be calibrated? Some Geiger counters, especially older designs, require regular calibration to ensure that their readings are accurate. Our instruments incorporate innovative modern design techniques and high-quality components. In over 28 years of manufacturing the Radalert®, Radalert® 50, Radalert® 100, Radalert® 100X, the IMI Inspector™, IMI Inspector Alert™ V2 and similar instruments, we have found that they maintain their original calibrations remarkably well. Some facilities require calibration certificates or annual calibration with an NIST-traceable source. Our instruments are calibrated electronically after manufacturing, and an electronic calibration certificate, except for the CRM-100™, are shipped with each order. If you require NIST-traceable calibration, we can provide this for an additional fee at the time of order placement, or we can refer you to our approved repair and calibration laboratory for direct service. If your instrument is for educational or hobby use, you probably do not need to calibrate it on a regular basis, but you may want to check it periodically against a known source of radioactivity to assure yourself that it is working properly. If you use the instrument professionally in an environment that has radioactive materials, you can use a calibrated check source periodically for the same purpose. medcom.com/support/frequently-asked-questions/
And just like that all the idiots bought up all the stock of good detectors and they will sit in the garage and get forgotten, ruined, and thrown away. 😑
Those are debatable In ability to detect, most run of a silicon diode, essentially a scintillation probe, can work for low levels. Wont for most other. Could be me and step up the collection of gear with high range and low range gear, companies of ludlum, bicron, eberline, and WMB Johnson. Although much more out of the price range for a average user.
There is a 7/10 rule due to the half-life of certain types of radiation. 7hr after its 10% of what it was. 7x7=49 (let's say 48hrs) it's 10% of what it was 7hrs after the event. 2 days x 7= two weeks it's again 10% of what it was at 2 days or 1/1000 of what it was when it happened. 100% when it happens 10% ~7hrs after 1% ~48hrs after .1% ~two weeks after
If it is the electro magnetic radiation one it may be from anything electronic. If you hold it up against a wall and it goes off you are probably picking up the wires inside the wall.
The GQ GMC300E is a Nuclear radiation detector so it will work for measuring backround radiation and no electro magnetic. I'm assuming that is what you are planning to use it for. Its definitely on the cheaper side but the reviews I have seen make it seem like a good economical alternative.
man you are too wrong I mean totaly wrong. That kkmoon read volt meters on that electronic device not electronic radiation. The lower one read micro teslas not the upper one. The upper one reads volt meters! It just means that there is electric
It can be in large doses or if you handle it very frequently. The thing about that particular sample of americium is the radiation actually has a window where it shoots out of. As long as you dont hold it facing you at point blank range for a long period of time it wont hurt a fly.
Particularly not for americium 241 it's almost only a alpha emitter with pulses of low range gamma. With that said it still isnt something youd want to carry in your pocket but the alpha emitting side wont effect you unless ingested or inhaled. Alpha can penetrate skin to a extent but as not shown in video the alpha decay only travels roughly a inch in normal air.
The yellow device to measure the radiation of electromagnetic waves while the rest of the devices especially to measure nuclear radiation and atomic radiation comparison corrupt and wrongly
I believe the americium shoots radioactive particles in a small chamber and once smoke enters the chamber it breaks the beam of radiation in the chamber triggering the alarm.
I once saw a monoxide detector go nuts in a building where there was alot of chain smokers living there. Apparently smokers are the most radioactive people.
@@steveh130 CO alarms work on a similar theory to a standard smoke detector, but without the americium source. Essentially a capacitor when the gas enters it changes the capacitance of the detector triggering the alarm. The issues with smokers is the grime left by the smoke, this enters the detector and clogs it causing false alarms.
Nope. A dosimeter is not for electromagnetic. It’s for high energy gamma radiation. Just search up Geiger counter and look for the ones that seem too good to be true, and also say electromagnetic. A dosimeter is not a Geiger counter, like an ionization chamber, but is for nuclear radiation
Thank you! Honestly yes, very much so! Sadly if you look back at history you will see we typically dont learn about the real dangers of nuclear accidents till years later. Chernobyl was HORRIBLE and took the lives of so many people. We didnt learn that much about it till the fall of the Soviet Union however. When Fukoshima happend I watched in horror knowing we wont know much about the true danger till many years later. Radiation from Fukoshima was detected even in California, our naval ships based in the pacific had to have their decks all washed heavily to try and get rid of any radioactive surface contamination. There are several articles out there about it but you will notice none really went main stream. Its very concerning but I think we will get better answers in the future.
Very silly you knock a product that does not say it is a geiger counter for not detecting nuclear or atomic raditin?? lol it measure electromagnetic radiation..two different things lmao. Also please get a camcorder or a better video cam. Your all over and shaky
High Flying Photography did you watch the video? I said exactly what you just said. Also when you search Geiger counter you get a lot of electro magnetic detectors. I NEVER knocked the electros, what I did was explained to people who don't know the difference when buying. Please watch the video before commenting false information about it. Thanks
the people pointing out the falacy of your "review" are correct..... Why would you even compare / review Geiger counter and EM detector side by side?? The devices are meant to measure completely different AND unrelated things.... ....you should have included light detector.....after all, visible light is part of the electromagnetic spectrum LOL
you literally didn't even watch the video, I literally explain why an EMF detector is NOT a Geiger counter. What an incredibly ignorant uneducated comment that is.......
