my favorite part is when it says fuck it and just screams. •••---••• •••---••• •••---••• *passes 690 uSV/h* •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••
It was nice. I would have like to have seen him use blue for negative to differentiate from green neutral, but he probably didn't have blue fluorescent paint. Or the blue showed up as green on camera or something.
Thanks to this video, I purchased my own RadiaScan. Quite happily, the most radioactive thing I found in my house was a stack of napkins made from recycled material.
With the possible exception of needing to handle the uranium ore with such care...the biggest worry there is the radon--you couldn't get enough on your hands to cause any harm...
@@jomiar309 I mean I'd assume the worry is more about breathing in particulate from the uranium ore, not just being near it, right? It's not hot enough to be an immediate danger in the short-term but you do not want pitchblende dust in your lungs
I store my strongest samples in a 'cage' of multiple layers of concrete garden tiles outside my house. Blocks the radiation to a tolerable level :) Thanks for watching!
@ louis tournas thanks for your comment but the smoke detector produces ions and reads only a disruptive molecule that reduces the ability of ions to move. It doesn’t give an actual reading showing how many negative or positive ions present. Both smoke detectors and emergency lights contain radioactive substances and if you don’t know what you are doing best not to play with them.
I really appreciate your attention to detail and clear explanations! I hope more and more people watch your videos and learn from them. Also, your accent is very pleasant to listen to. :)
I have a GQ gieger counter, and I think it's click is probably one of the most iconic gieger counter sounds. I haven't found anything radioactive above 50 CPM on my property, but I really like taking measurements of things, and a gieger counter is one the tools that you will likely never really need, but when you do need it, you really need it.
Can you please test a cathode ray tube monitor (maybe an old tv) with your new device Thanks btw why is the reading still at 40 µSv when you placed them on the dinnerplate at 10:57 is it due to Potassium decay?
@@swabianscience Yes, one common brand which used uranium glazes was Fiestaware. It wasn't done for the radioactivity but rather for the properties of uranium compounds as dyes.
@@vamp97 Even if all of your dishes were coated in uranium based glaze, it wouldn't be dangerous. The amount of radioactivity is tiny (You'd have to hold it next to you for years to significantly increase your cancer risk), the only danger is when the glaze is damaged, it emits uranium dust, which you really don't want to breathe.
@@0XAN A dosimeter is technically a geiger counter that can also count a the accumulated doese. A radiometer can only estimate the current level in real-time. Technically the Radiascan is all of that
Out of all my (many, many) subs, this is one of the few where I've never watched a video and been, like, "meh". Always interesting, always informative.
Your video editing has gotten so much more elaborate and sophisticated if you have an editor then give them my remarks and if you are doing it yourself then kudos to you and well done!
Brian, I have 4 observations: 1. Very nice video, as always. Congratulations! 2. I found it very interesting how your new RadiaScan beeps S.O.S. in morse code, until it reaches about 700 uSv/h, when it goes "oh my god get me the hell out of here" constant beep mode. 3. I didn't understand why the uraninite was colder than the table (that was, presumably, at ambient temperature). 4. I also didn't understand why your Soeks and GammaScout devices zeroed the readings in 2015 and did detect radioactivity at this time... Thanks and best wishes!!
Hi braniac! Been watching for almost 3 years now, i think it would be very cool if you did a tour of where you store all of your samples/magnets/everything. Perhaps a future video idea?
Ahhh what a cool video!!! I had to pause it in the beginning to look up antimatter and it was a super intriguing subject, and the radition stuff was really cool as well! I wish I could support you on patreon but as I only turn 16 this year that's not possible. However, if you were to sell merch, especially something like shirts or pins of your wheel of hazards I'd definitely buy something like the nerd I am XD
By the way, i have to mention it but i think i saw a meteor yesterday! I would've thought it was some sort of firework or something but it made no sound, it was a orange/yellow kinda fire colour, sparks came of the end, its soared for maybe 1-3 seconds before disappearing pretty high up but much closer than the few stars that had come out and it was the most amazing thing ever
Thank you very much, Indra. Patreon support is totally optional. It's an even bigger support to always watch, like and comment on my videos like you do. That matters more! I don't have plans for merchandise at the moment, but who knows what the future will bring. I dream of a Brainiac75 line of neodymium magnets. All grade N52 looking good in black epoxy with my yellow logo on them x) But your suggestions are more likely to be realized.
Sure sounds like a shooting star. The sparks at the end were the meteor breaking up in small parts from the extreme friction heat etc. when entering the Earth's atmosphere. Very cool display indeed - congratulations :o)
Very weakly radioactive, especially compared to the pitchblende he showed in the video. There are some VERY spicy radium items out there (not the usual watches and clocks), but erm, those aren't so common in antique shops (thankfully!)
Interestingly there is more to the x-rays coming from the tritium light sources. While a large part is due to Bremsstrahlung at 5-15keV, there are also pretty strong peaks corresponding to the characteristic x-ray spectrum of zinc, especially the K_alpha and K_beta emissions. However there is still practically nothing coming from these. As counters are calibrated to 662keV Cs137 emissions, they overestimate the dose by a factor of around 70. And of course it's not actually a full body dose. I once calculated the yearly dose for a key-chain with ~200Bq, ~10keV per gamma, 1/2 absorbed (people don't usually swallow their keys :P), 1/2 of the time wearing they key on you. I get around 2.5 micSv for a year, so around 1000-2000 times less than background and around as much as I got from my 2 day trip to Chernobyl, or around 2h of flying... Considering less than 1/2 is actually absorbed since people aren't infinite planes and people don't have their keys on them half of all time, it's probably a factor 5 or so lower still. All in all, the probability of impressing a potential girlfriend with one of these far far outweighs the risk of it! :D
Where did you get 200 Bq? I think the tritium light sources are more like 10^9 Bq. However, once you work out how much of the super low-energy x-rays are produced and actually make it out of the glass vial, it becomes only a few counts per second.
For example, I have a Betatorch which is a British military tritium illumminator which is about the same surface brightness as a keychain tritium light but the surface area is much larger (it is designed to provide just enough light that you could read a map in total darkness but not be seen more than about 20 meters away). It has 1.9 Curies of tritium (7x10^10 Bq)
@@sbreheny I held of in front of a scintillating counter and got ~100Bq, bit below. So ~200 or in that range total. It was a Nite GlowRing if I remember correctly. Honestly somewhat unscientific since the scintillators aren't really meant for these low energies. I wouldn't think it's far off the actual value but there is no way to know for sure other than using an x-ray detector. But in the end even if it's a factor of 100 greater, it's still less than a tenth of background and personally wouldn't bother me. Edit: oh you are saying you would expect less. Well could be, I really just grabbed the next best scint counter while doing student labs. Beforehand that I expected less as well, especially because IAEA has a paper that speaks of 28mic penetration depth of the x-rays through glass.
@@TiSapph So you're saying you did extensive math based on... waving a random-shape and random-area source in front of a random-shape and random-volume scintillation detector that only shows its own estimated total absorbed dose? Yeah... nice.
@@Spirit532 Um not quite? It's a scintillation counter, not spectrometer. It only counts the number of pulses, not their amplitudes. And then I did a fairly simple one line order of magnitude calculation to get a sense of how much dose one of these gives you. Also I think it's seems pretty fair so assume that if you have a small object on a decently large detector, the total activity is going to be around 2-3 times that much. Even if it's actually like a factor of 5, whatever it's an order of magnitude calculation. Don't quite get what the issue is
Yep, I haven't tested the functions of the 701 much yet, but it sure seems to work well as the video hopefully shows. It even has alpha, beta and gamma modes that I haven't had the time to test yet. Thanks for watching!
And touching the actual pitchblende sample with the detector's window is a VERY bad idea. Once the insides get contaminated you can just throw the detector away, good luck cleaning it.
I love looking for radioactive rocks in the woods and I was thinking about getting gamma scout but now I think I'll go with radiascan considering it outperform gamma scout and it's also cheaper!
To go into a bit more detail about tritium turning into helium-3, this is done through a process called Beta Decay, because when it happens, a beta particle is emitted from a nucleus [a high energy electron/positron] In the case of tritium, a neutron was turning into a proton spontaneously. This happened because the quarks that make up the neutron are capable of changing into other kinds of quarks by exchanging a type of particle known as an Intermediate Vector Boson. In this case, it is a W- Boson, which can be thought of as a kind of messanger particle. To avoid a whole lecture about quantum electrodynamics and field theory, the gist is that while this decay process is happening, a beta particle and antineutrino are being created in a pair. Every time this process happens, they always come in pairs. Neutrons have a higher rest mass than protons. Essentially, it is that extra energy that goes into the beta particle and the antineutrino. There are also some photons involved but those aren't that important. This can also happen with protons becoming neutrons. It's called inverse beta decay, and it happens whenever you have a high energy particle, usually a beta particle or high energy neutrino smash into a proton. The kinetic energy of the collision supplies the activation energy needed to kickstart the decay process. An up quark in the proton by way of a W+ Boson changes into a down quark, and the nuclear potential energy between those quarks rises, giving the resulting neutron the extra rest mass. Some photons, neutrinos, and a positron is also given off as the total energy of the neutron rejects the excess energy from the original collision. After all, quantum particles really love being in their ground states.
When you change the battery, make sure you have the device "on life support" with another power source to hold any volatile memory. Manufactures do this so that if you replace the cell, the unit will stop working. Also, Is there a Dallas chip on the board? Those have batteries to back their circuits potted into the bottom of them. Don't let the power fall out completely!
Finally a video with an actual test rather than spouting a "TOP 8!!!!" consisting entirely of advertisement points. Thank you. Do you have any experience with the GCA-07W or similar? I like the range (0.01 uSv/h to 10 mSv/h) on it, but I have no idea how you would test the 10 mSv/h range without doing something stupid like breaking into an old mine. With that range I'm wondering if the 700 uSv/h reading would be instant and accurate. Edit: I did just realize the RadiaScan has a 10 mSv/h range. That's undoubtedly why it is quicker and more confident than the others with the higher doses.
I want to know, in your opinion is the Radiscan 701a a good Geiger meter for an all around meter? I'm on a tight budget and don't want to have to purchase several meters.? Love the videos, keep them coming please... PEACE:)
Ok that was actually awesome, I extremely enjoyed watching that and also remembering that I've already watched the other one from the 2015 , you are real great and I extremely appreciated this video the radiation really does scare me I hope you stay safe keep up the amazing work that you are doing I can't wait to see your next video PS greetings from Iran 🌷😊
Thanks, Abteen. The pitchblende sample does need to be treated with respect, but for short amounts of time near it, it's no problem. I actually received less of a radiation dose by filming this video that I would receive on an international flight (cosmic radiation in 10 km's height is a thing...). Thanks for watching once again and greetings back from Denmark.
Wow! Another excellent video! How did you do the hydrogen atom scene at 2:53? I'd guess that's some fluorescent balls, but how did you make the electron spin at first? PS: What a shame that all the Geiger counters are outside my budget... TBH, the only use I'd have for them is my small americium sample from a smoke detector.
I'm guessing they are styrofoam balls and painted with phosphorescent paint. I bought my geiger counter back in 2010 on Ebay. It is a CDV-700 model made in the 60s. Back then, people were trying to get rid of them. I bought it for 35$. Since the Fukushima disaster, the prices on them went up to 120$ and more. Everyone started to sell potassium iodide (KI) pills and the price of raw potassium iodide trippled. Fortunately, I had also bought 1 kg of KI.
I would take a look at eBay. There’s a guy selling premade ready to go counters including an SBT10a tube!!! $100 from Lithuania I know that isn’t cheap… But that tube is capable of alpha beta and gamma… and the tube could have cost just as much as the entire set up a few years ago! And the counter he sells is just as capable as the radiascan 701A. In my opinion. I know $100 is still a lot… But he has counters starting at $27! And you can always add a nicer tube when you can afford it. His are the only ones I found that are easily adjustable so that you can use different tubes. Each tube requires different voltages and his has built in quick and efficient adjustment. If you like building electronics kits and are quite handy… The GKB5 kit is great! Also the GK-plus is wonderful. The gentleman who sells them is the original designer. His designs have been cloned and copied from China, Lithuania, and all over the world. You can find him at
Well, I don't know, but I've been told Uranium ore's worth more than gold Sold my Cad', I bought me a Jeep I've got that bug and I can't sleep Uranium fever has done and got me down Uranium fever is spreadin' all around With a Geiger counter in my hand I'm a-goin' out to stake me some government land Uranium fever has done and got me down Well I had talk with the AEC* And they brought out some maps that looked good to me And one showed me a spot that he said he knowed So I straddled my Jeep and headed down the road I reckon I drove about 100 miles Down a bumpy road out through the wilds When all of sudden I bounced to a stop At the foot of a mountain, didn't have no top Uranium fever has done and got me down Uranium fever is spreadin' all around With a Geiger counter in my hand I'm a-goin' out to stake me some government land Uranium fever has done and got me down Well I took my Geiger and I started to climb Right up to the top where I thought I'd find A hunk of rock that would make it click Just like I'd read about Vernon Pick On the second day, I made the top And I'm tellin' you, Steve, I was ready to stop The only clickin' that I heard that day Was the bones in my back that had gone astray Uranium fever has done and got me down Uranium fever is spreadin' all around With a Geiger counter in my hand I'm a-goin' out to stake me some government land Uranium fever has done and got me down Well, you pack up your things You head out again Into some unknown spot where nobody's been You reach the spot where your fortune lies You find it's been staked by 17 other guys Well, I ain't kiddin', I ain't gonna quit That bug's done caught me and I've been bit So with a Geiger counter and a pick in my hand I'll keep right on stakin' that government land Uranium fever has done and got me down Uranium fever is spreadin' all around With a Geiger counter in my hand I'm a-goin' out to stake me some government land Uranium fever has done and got me down
Great song but it dates from the 1940s when uranium was needed for bombs and the gold price was set by Government! Today gold is about 500 times the price of uranium!
I love how the RadiaScan releases an S.O.S in morse code, very creepy
Being the smart ass I am, I searched for "morse" b/f I was going to add the same comment.
my favorite part is when it says fuck it and just screams.
•••---••• •••---••• •••---••• *passes 690 uSV/h* •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••
That alarm is meant to be warn when walking around chernobyl or something, to alert you when you are wandering into a hot zone.
@@RKSNomad but isnt sos ...---...
@@superzucc7343 yeah... in unsure what your point is.
That's one chicken scanner - it sends out SOS when radiated.
Peter Riis i guess that's to warn the handler to get the hell out of wherever they're scanning immediately
I hope that feature can be turned off. Otherwise I'd be very tempted to do a photonic induction on the thing.
@@plushifoxed
Really?
@@bdf2718
A photonic induction?
@@Peter_Riis_DK
ruclips.net/video/Ex8xT9Avf48/видео.html
Nice illustration with the glowing balls
Yeah that looked really cool
I thought it was CGI lol
Absolutely! Looked like it was made on a computer until the hand came in :D
It was nice. I would have like to have seen him use blue for negative to differentiate from green neutral, but he probably didn't have blue fluorescent paint. Or the blue showed up as green on camera or something.
Why am I dirty minded
Thats one serious and very creepy geiger counter lol
It immediately sends out SOS on Morse code damn
It's a warning to get the hell out of there.
Thanks to this video, I purchased my own RadiaScan. Quite happily, the most radioactive thing I found in my house was a stack of napkins made from recycled material.
Another outstanding video my friend
Dan Festag o0
Make more videos with radioactive stuff, love it
As a Nuclear Physics student, this "home" video is truly pretty accurate
With the possible exception of needing to handle the uranium ore with such care...the biggest worry there is the radon--you couldn't get enough on your hands to cause any harm...
@@jomiar309 I mean I'd assume the worry is more about breathing in particulate from the uranium ore, not just being near it, right? It's not hot enough to be an immediate danger in the short-term but you do not want pitchblende dust in your lungs
I gotta say... That little atomic demonstration was pretty awesome.
I'm speechless! Good luck in the future! The meter is singing to the user when in high levels :p
So, where do you store those? In your noisy neighbor's yard?
I might put them in the middle of some water canisters to absorb the radiation.
I store my strongest samples in a 'cage' of multiple layers of concrete garden tiles outside my house. Blocks the radiation to a tolerable level :) Thanks for watching!
What do you know about ions? What can be used to detect and read how many are being produced.
@@21gioni :
Smoke alarms with Am241 measure the number of ions in the air near the Am241 source.
en.wikipedia.org/wiki/Smoke_detector#Ionization
@ louis tournas thanks for your comment but the smoke detector produces ions and reads only a disruptive molecule that reduces the ability of ions to move. It doesn’t give an actual reading showing how many negative or positive ions present.
Both smoke detectors and emergency lights contain radioactive substances and if you don’t know what you are doing best not to play with them.
Brainiac, your videos have this special kind of atmosphere / feel to it, please never change this. It's sooooo moody
Love the visualisation of the atomic nucleus! Especially the neutrino :) It was really good and effective.
I really appreciate your attention to detail and clear explanations! I hope more and more people watch your videos and learn from them. Also, your accent is very pleasant to listen to. :)
I've been following you since the first geiger counter video!
So glad you're still on youtube :)
Nice! I was just watching your videos, thank you for the exemplary work!
Same
Thank you, John. You certainly were here fast ;) More to come!
I have a GQ gieger counter, and I think it's click is probably one of the most iconic gieger counter sounds. I haven't found anything radioactive above 50 CPM on my property, but I really like taking measurements of things, and a gieger counter is one the tools that you will likely never really need, but when you do need it, you really need it.
Cool😊
I like how the RadiaScan uses SOS in Morse code to warn the user.
"This video features radioactive items" = instant thumbs up from me!
Can you please test a cathode ray tube monitor (maybe an old tv) with your new device
Thanks
btw why is the reading still at 40 µSv when you placed them on the dinnerplate at 10:57
is it due to Potassium decay?
I think it's one of his uranium coated plates, so it's quite radioactive by itself if you mean that
@@swabianscience Yes, one common brand which used uranium glazes was Fiestaware. It wasn't done for the radioactivity but rather for the properties of uranium compounds as dyes.
@@swabianscience thank goodness for the context, I was about to be scared of all my dinnerware...
@@vamp97 Even if all of your dishes were coated in uranium based glaze, it wouldn't be dangerous. The amount of radioactivity is tiny (You'd have to hold it next to you for years to significantly increase your cancer risk), the only danger is when the glaze is damaged, it emits uranium dust, which you really don't want to breathe.
Love this channel what a voice!
Production quality on this video was amazing. So much more work being put into the video. loved it.
RadiaScan 701A is a Russian device. I have one and it's one of the best radiometers out there. By the way, hi from Russia.
hi there, it's a geiger counter, or just a dosimeter?
@@0XAN A dosimeter is technically a geiger counter that can also count a the accumulated doese. A radiometer can only estimate the current level in real-time. Technically the Radiascan is all of that
Sehr interessantes Video! Weiter so!
The quality of this video is insane.
Just like all your other videos, fantastic! Thank you and keep the good work
Out of all my (many, many) subs, this is one of the few where I've never watched a video and been, like, "meh". Always interesting, always informative.
The Geiger counter beeping and the creepy music in the background...
Gives me chills.
Nuclear physics are absolutely wicked, thanks for the awesome stuff !
Thank you so much for the info! I just ordered my own Radiascan-701A
Your video editing has gotten so much more elaborate and sophisticated if you have an editor then give them my remarks and if you are doing it yourself then kudos to you and well done!
Brian, I have 4 observations:
1. Very nice video, as always. Congratulations!
2. I found it very interesting how your new RadiaScan beeps S.O.S. in morse code, until it reaches about 700 uSv/h, when it goes "oh my god get me the hell out of here" constant beep mode.
3. I didn't understand why the uraninite was colder than the table (that was, presumably, at ambient temperature).
4. I also didn't understand why your Soeks and GammaScout devices zeroed the readings in 2015 and did detect radioactivity at this time...
Thanks and best wishes!!
Awesome, I love it when you do these kind of videos! :D
This is such a great demonstration. If I ever work at a national lab again, I'm definitely getting a 701a.
You won't
As always a terrifically interesting and educational video! Thank you!
Great video! I would love to do more stuff like this on our page. Keep up the cool stuff.
That chunk of radioactive material is mad do you have a lead container to store it ???, this has to be my favorite video from you
Yes would like to see the battery replacement. Also any schematics that you can find on the circuit board.
Thanks for the vid.
A schematic of a turd emoji would do it justice!
Antimatter matters
You're just amazing. Thanks to you we can learn more about this things!
I know it's been more than 2 years, but I'd absolutely love to see more radioactive experiments!
Hi braniac! Been watching for almost 3 years now, i think it would be very cool if you did a tour of where you store all of your samples/magnets/everything. Perhaps a future video idea?
Amazing video mate, absolutely loved it :)
Ahhh what a cool video!!! I had to pause it in the beginning to look up antimatter and it was a super intriguing subject, and the radition stuff was really cool as well! I wish I could support you on patreon but as I only turn 16 this year that's not possible. However, if you were to sell merch, especially something like shirts or pins of your wheel of hazards I'd definitely buy something like the nerd I am XD
By the way, i have to mention it but i think i saw a meteor yesterday! I would've thought it was some sort of firework or something but it made no sound, it was a orange/yellow kinda fire colour, sparks came of the end, its soared for maybe 1-3 seconds before disappearing pretty high up but much closer than the few stars that had come out and it was the most amazing thing ever
Thank you very much, Indra. Patreon support is totally optional. It's an even bigger support to always watch, like and comment on my videos like you do. That matters more! I don't have plans for merchandise at the moment, but who knows what the future will bring. I dream of a Brainiac75 line of neodymium magnets. All grade N52 looking good in black epoxy with my yellow logo on them x) But your suggestions are more likely to be realized.
Sure sounds like a shooting star. The sparks at the end were the meteor breaking up in small parts from the extreme friction heat etc. when entering the Earth's atmosphere. Very cool display indeed - congratulations :o)
When the equipment screams in morse, you know your boned
you're*
And no, you are not boned. But you have to pay attention.
You should take them with you to thrift stores. There are stupendously radioactive things lying around there, mostly glazed ceramics.
Very weakly radioactive, especially compared to the pitchblende he showed in the video. There are some VERY spicy radium items out there (not the usual watches and clocks), but erm, those aren't so common in antique shops (thankfully!)
Amazing
@3:00 ish, that was a very nice illustration of the elements. I feel we need more of that. ;)
Du er under vurderet og fortjener klart flere subscribers!!
Elsker dine videoer! :D
Always interesting and educational. Thank you.
You have a nice channel with nice videos! Really nice!
Quality content as per usual
I like how they don't have a word for Bremsstraglung :D
"Slowing Down Radiation" (SDR) or "Braking Radiation" (BR) is too long!
At 2:33 it says "SOS" in Morse Code. (RadiaScan-701A)
Quality > quantity I love your videos and your attention to detail mate.
Love what your doing dude Keep it up!!!!
Interestingly there is more to the x-rays coming from the tritium light sources. While a large part is due to Bremsstrahlung at 5-15keV, there are also pretty strong peaks corresponding to the characteristic x-ray spectrum of zinc, especially the K_alpha and K_beta emissions.
However there is still practically nothing coming from these. As counters are calibrated to 662keV Cs137 emissions, they overestimate the dose by a factor of around 70. And of course it's not actually a full body dose.
I once calculated the yearly dose for a key-chain with ~200Bq, ~10keV per gamma, 1/2 absorbed (people don't usually swallow their keys :P), 1/2 of the time wearing they key on you. I get around 2.5 micSv for a year, so around 1000-2000 times less than background and around as much as I got from my 2 day trip to Chernobyl, or around 2h of flying... Considering less than 1/2 is actually absorbed since people aren't infinite planes and people don't have their keys on them half of all time, it's probably a factor 5 or so lower still.
All in all, the probability of impressing a potential girlfriend with one of these far far outweighs the risk of it! :D
Where did you get 200 Bq? I think the tritium light sources are more like 10^9 Bq. However, once you work out how much of the super low-energy x-rays are produced and actually make it out of the glass vial, it becomes only a few counts per second.
For example, I have a Betatorch which is a British military tritium illumminator which is about the same surface brightness as a keychain tritium light but the surface area is much larger (it is designed to provide just enough light that you could read a map in total darkness but not be seen more than about 20 meters away). It has 1.9 Curies of tritium (7x10^10 Bq)
@@sbreheny I held of in front of a scintillating counter and got ~100Bq, bit below. So ~200 or in that range total. It was a Nite GlowRing if I remember correctly.
Honestly somewhat unscientific since the scintillators aren't really meant for these low energies. I wouldn't think it's far off the actual value but there is no way to know for sure other than using an x-ray detector.
But in the end even if it's a factor of 100 greater, it's still less than a tenth of background and personally wouldn't bother me.
Edit: oh you are saying you would expect less. Well could be, I really just grabbed the next best scint counter while doing student labs.
Beforehand that I expected less as well, especially because IAEA has a paper that speaks of 28mic penetration depth of the x-rays through glass.
@@TiSapph So you're saying you did extensive math based on... waving a random-shape and random-area source in front of a random-shape and random-volume scintillation detector that only shows its own estimated total absorbed dose?
Yeah... nice.
@@Spirit532 Um not quite? It's a scintillation counter, not spectrometer. It only counts the number of pulses, not their amplitudes.
And then I did a fairly simple one line order of magnitude calculation to get a sense of how much dose one of these gives you.
Also I think it's seems pretty fair so assume that if you have a small object on a decently large detector, the total activity is going to be around 2-3 times that much. Even if it's actually like a factor of 5, whatever it's an order of magnitude calculation. Don't quite get what the issue is
the atomic diagram was really cool and informative! very easy to understand.
Very informative. That 701 has nice clever features built in. Especially that discriminator system.
Yep, I haven't tested the functions of the 701 much yet, but it sure seems to work well as the video hopefully shows. It even has alpha, beta and gamma modes that I haven't had the time to test yet. Thanks for watching!
I learn so much Chemistry from you than in school
Thnx xd
Tak! Oh, and it would be cool to see you bring out the soldering iron!
radioactive material :
geiger counter : lets send a SOS signal even though nobody cares
9:57 my brain :- touch it
I would advise protecting your counters with a sealable bag. You don't want the meters to get contaminated with radioactive ores.
And touching the actual pitchblende sample with the detector's window is a VERY bad idea.
Once the insides get contaminated you can just throw the detector away, good luck cleaning it.
Love your vids as always!
Like always, Perfect video :)
I love looking for radioactive rocks in the woods and I was thinking about getting gamma scout but now I think I'll go with radiascan considering it outperform gamma scout and it's also cheaper!
Great video mate! Subscribed!
Those atoms look like neon cheeseballs.
That pitchblende rock is scary to me in a way I can't quantify. Thinking of all the potential accidents associated with keeping that in your home.
It's really not that big of a deal if you don't sleep on it. If it was, he wouldn't be allowed to have it in the first place.
Marie Sklodowska Curie was so hardcore.💙
@@joshroolf1966saying that she kept a glowing pile of radium on her desk
tillykke med 500 tusind subs!!! håber at du får 1 million :)
Really fine presentation.
The visualisation of tritium was the best and amazing i have seen
I absolutely want to see an attempted battery change. great stuff as always
Your first Geiger counter can detect alpha radiation when you will take back cover off
awesome video as always!
woaw have I bin here for more than 4 years, time realy flies by
i just want to see moreee , i get adicted to your videos
Great work👍
Ok you proved that you are a crazy man good point!
To go into a bit more detail about tritium turning into helium-3, this is done through a process called Beta Decay, because when it happens, a beta particle is emitted from a nucleus [a high energy electron/positron]
In the case of tritium, a neutron was turning into a proton spontaneously. This happened because the quarks that make up the neutron are capable of changing into other kinds of quarks by exchanging a type of particle known as an Intermediate Vector Boson. In this case, it is a W- Boson, which can be thought of as a kind of messanger particle.
To avoid a whole lecture about quantum electrodynamics and field theory, the gist is that while this decay process is happening, a beta particle and antineutrino are being created in a pair. Every time this process happens, they always come in pairs.
Neutrons have a higher rest mass than protons. Essentially, it is that extra energy that goes into the beta particle and the antineutrino. There are also some photons involved but those aren't that important.
This can also happen with protons becoming neutrons. It's called inverse beta decay, and it happens whenever you have a high energy particle, usually a beta particle or high energy neutrino smash into a proton.
The kinetic energy of the collision supplies the activation energy needed to kickstart the decay process. An up quark in the proton by way of a W+ Boson changes into a down quark, and the nuclear potential energy between those quarks rises, giving the resulting neutron the extra rest mass.
Some photons, neutrinos, and a positron is also given off as the total energy of the neutron rejects the excess energy from the original collision. After all, quantum particles really love being in their ground states.
oof the quantum jokes. Now to figure out where they're going
Amazing!
When you change the battery, make sure you have the device "on life support" with another power source to hold any volatile memory. Manufactures do this so that if you replace the cell, the unit will stop working. Also, Is there a Dallas chip on the board? Those have batteries to back their circuits potted into the bottom of them. Don't let the power fall out completely!
thanks for the recommendation
Great video! The information about tritium is very interesting. I have one of those vials on my keychain so I can find my keys in the dark.
great vid keep them coming
Finally a video with an actual test rather than spouting a "TOP 8!!!!" consisting entirely of advertisement points. Thank you. Do you have any experience with the GCA-07W or similar? I like the range (0.01 uSv/h to 10 mSv/h) on it, but I have no idea how you would test the 10 mSv/h range without doing something stupid like breaking into an old mine. With that range I'm wondering if the 700 uSv/h reading would be instant and accurate.
Edit: I did just realize the RadiaScan has a 10 mSv/h range. That's undoubtedly why it is quicker and more confident than the others with the higher doses.
Plates made in the "C" nation being radioactive -- these are the classic civil defense props.
That's so cute! At dangerous radiation levels, the 701 says SOS. 😊 ... --- ...
I want to know, in your opinion is the Radiscan 701a a good Geiger meter for an all around meter? I'm on a tight budget and don't want to have to purchase several meters.? Love the videos, keep them coming please... PEACE:)
It's the best value for money I've seen.
@@MarkRose1337 Thank you very much for your input. I am going to look into getting one for my "Felix" box. PEACE:)
I like the way you show atoms with floressing materials.
Great video as always! How do you store that uranium oxide safely? Keep up the great work ❤
I'd love to see you change that battery. How will you calibrate it though do you need a spectrometer?
Ok that was actually awesome, I extremely enjoyed watching that and also remembering that I've already watched the other one from the 2015 , you are real great and I extremely appreciated this video the radiation really does scare me I hope you stay safe keep up the amazing work that you are doing I can't wait to see your next video
PS greetings from Iran 🌷😊
Thanks, Abteen. The pitchblende sample does need to be treated with respect, but for short amounts of time near it, it's no problem. I actually received less of a radiation dose by filming this video that I would receive on an international flight (cosmic radiation in 10 km's height is a thing...). Thanks for watching once again and greetings back from Denmark.
I HAVE A MIGHTY NEED FOR THAT MEMORIAL PIECE
I love you dr. Brainiac
Best advertisement ever. 👍👍👍
Wow! Another excellent video! How did you do the hydrogen atom scene at 2:53? I'd guess that's some fluorescent balls, but how did you make the electron spin at first?
PS: What a shame that all the Geiger counters are outside my budget... TBH, the only use I'd have for them is my small americium sample from a smoke detector.
I'm guessing they are styrofoam balls and painted with phosphorescent paint.
I bought my geiger counter back in 2010 on Ebay. It is a CDV-700 model made in the 60s. Back then, people were trying to get rid of them. I bought it for 35$. Since the Fukushima disaster, the prices on them went up to 120$ and more.
Everyone started to sell potassium iodide (KI) pills and the price of raw potassium iodide trippled.
Fortunately, I had also bought 1 kg of KI.
@@louistournas120 geiger couner
@@suresh-pt4cv
?
I would take a look at eBay. There’s a guy selling premade ready to go counters including an SBT10a tube!!! $100 from Lithuania
I know that isn’t cheap… But that tube is capable of alpha beta and gamma… and the tube could have cost just as much as the entire set up a few years ago!
And the counter he sells is just as capable as the radiascan 701A. In my opinion.
I know $100 is still a lot… But he has counters starting at $27! And you can always add a nicer tube when you can afford it. His are the only ones I found that are easily adjustable so that you can use different tubes. Each tube requires different voltages and his has built in quick and efficient adjustment.
If you like building electronics kits and are quite handy… The GKB5 kit is great! Also the GK-plus is wonderful. The gentleman who sells them is the original designer. His designs have been cloned and copied from China, Lithuania, and all over the world. You can find him at
Am i the only one who loves the beep sound of the radioactivity sensors make?
Well, I don't know, but I've been told
Uranium ore's worth more than gold
Sold my Cad', I bought me a Jeep
I've got that bug and I can't sleep
Uranium fever has done and got me down
Uranium fever is spreadin' all around
With a Geiger counter in my hand
I'm a-goin' out to stake me some government land
Uranium fever has done and got me down
Well I had talk with the AEC*
And they brought out some maps that looked good to me
And one showed me a spot that he said he knowed
So I straddled my Jeep and headed down the road
I reckon I drove about 100 miles
Down a bumpy road out through the wilds
When all of sudden I bounced to a stop
At the foot of a mountain, didn't have no top
Uranium fever has done and got me down
Uranium fever is spreadin' all around
With a Geiger counter in my hand
I'm a-goin' out to stake me some government land
Uranium fever has done and got me down
Well I took my Geiger and I started to climb
Right up to the top where I thought I'd find
A hunk of rock that would make it click
Just like I'd read about Vernon Pick
On the second day, I made the top
And I'm tellin' you, Steve, I was ready to stop
The only clickin' that I heard that day
Was the bones in my back that had gone astray
Uranium fever has done and got me down
Uranium fever is spreadin' all around
With a Geiger counter in my hand
I'm a-goin' out to stake me some government land
Uranium fever has done and got me down
Well, you pack up your things
You head out again
Into some unknown spot where nobody's been
You reach the spot where your fortune lies
You find it's been staked by 17 other guys
Well, I ain't kiddin', I ain't gonna quit
That bug's done caught me and I've been bit
So with a Geiger counter and a pick in my hand
I'll keep right on stakin' that government land
Uranium fever has done and got me down
Uranium fever is spreadin' all around
With a Geiger counter in my hand
I'm a-goin' out to stake me some government land
Uranium fever has done and got me down
Great song but it dates from the 1940s when uranium was needed for bombs and the gold price was set by Government! Today gold is about 500 times the price of uranium!
The demonstration of hydrogen isotopes is truly amazing, how did you do it? :o
Fluorescent balls under a black light and a green laser.