Magnetrons require a microwave oven/resonance chamber to build up enough heat by the wave going over the same area again and again. I've tried (not to burn anyone's house down though)
You sir are certifiably mad! Definitely a subscriber for life! I wish I lived close enough to visit but not quite in the flat next door. Your videos allow me to see all the experiments I would enjoy myself less the expense and potential of acquiring an angry bout of tackle cancer. Keep up the great work.
The counts are averaged over time. It takes time for the counts to decrease in the detector. However in reality x-rays appear and disappear as soon as the device is switched on or off t. Physicist
+fo shizzle Is not that much. You can have 10 amps at 250 volts in main and get 12000 volts at 0.2 amps.... It will be 2.5 kw/h. 5 Kw is 1 euro in Romania. My last electricity bill (for 2 months) was 200 Kw - 50 euro. So you can play 2 hours non-stop with a step up transformer as said and pay 1 euro....
That was wild I have to admit bringing these old things back to life... Watching the electronic arc. Another you for a great Holloween display.. with the arc jumping was really interesting ...
Cool to experiment, BUT A geiger counter doesn't detect X-Rays!! Totally different frequency. There is a reason why radiographers use fluorescing screens.. because they DO detect x-rays -- big time!! Yes I was an x-ray engineer. FFS get yourself some eye protection as you are probably already well on the way to cataracts.. And by the way you need 100K to 150KV, 200K is too much, the x-rays will just pass through everything. Medical x-ray tubes use an aluminium sheet to protect you from the low 50KV stuff which is seriously damaging to eyes and skin. :-)
Yup the job of a geiger counter is to detect radiation. Although, x-rays are radiation, the amount of radiation produced by x-ray CRT is not a significant amount to cause cancer. But can cause cancer in the long run. But its very true that the geiger counter cannot detect x rays. if that large tube produced x rays, the geiger counter would have started beeping WHILE the high voltage was on. NOT after.
Ryan Haquim the reason there is a delay between the tube being on and the Geiger counter reading is due to the slow response of this particular Geiger counter.
Geiger counters do detect X-rays because they are ionising and you can check this on google yourself. Inside the counter the geiger-muller tube contains a gas is ionised by the radiation and this produces an electric current. The main reason why fluorescing screens are used is because you can generate an image from them. The large tube probably did produce X-rays, but the counter was positioned too far from the tube to detect much of it. A lot of the newer tubes are impregnated with lead so this could also be reason.
i spent a day in Chernobyl and pripyat in 2008. the geiger counter read 5000 (normal background .5-10) and i wasnt worried. being in a room with them wouldnt worry me either. long term exposure is what you need to worry about if i remember correctly...
This may seem a bit late, but for anyone who is watching this in the future, in AUSTRALIA the legal dose for an un-licenced person is 25.0uSv/h with an allowance for up to 1mSv per year. And yes I am a licenced Industrial Radiography Technician, I'm not just spitting numbers out the top of my head.
It's great that you are actually doing what most of us likeminded people have at some time thought about...👍🏼😂 the fact your doing it is actually saving lives...😂😂😂👍🏼👍🏼👍🏼👍🏼
I suspect you're correct. I am not familiar with this particular Gm counter and whether it can differentiate between beta particles and X-rays. 200 kV isn't really high enough for X-rays.
Getting there. Electrons can't move at c (they have mass, which would cause all sorts of physics to break), but electric fields can. This is arguably the most counterintuitive thing in basic physics, but while electrons can't move at c, electric fields can. The best way to think of this is as if the electrons can see each other. When one electron sees the other start moving, then the observing electron starts moving. (contd)
9.70 u/sv might seem high but that's about how high the radiation is when you fly in an airplane at cruising altitude. It's really not dangerous at all even over long periods.
P.S.: Here in Big Sur California the background count averages 14 to 15 CPM... I see it's about the same there in your place... seems to be like all over the Earth... unless one lives in Pripyat or Fukushima or somewhere.... it's a little higher in some places.
While I would agree with most of the comments on here about how this is likely a malfunction in the Geiger, it's worth taking into account that the Geiger was measuring steady higher readings of X-rays which each coincided with an increase in voltage to each tesla coil on each attempt. Malfunctions, or spontaneous readings in the Geiger due to large emf would show up as jumps or spikes and would likely have inconclusive readings rather then the steady output variables which can be seen. The only way to rule out that emf was indeed causing the reading would be to measure its strength and place the meter further away. But really though, chances are X-rays were indeed produced. Be safe out there ! Leaving the room did little to help you btw... Unless your walls are thick concrete or some sort of reflective metal. Given the reading on the Geiger was relatively low and the period you were exposed wasn't that long you should be okay... But perhaps a insulated faraday cage around your next test, set it up to encase your tesla coils, put the Geiger inside with your camera in a non reflective insulator so you can avoid further harming your cells in future experiments.
You should get a pressurized integrating ion chamber it will detected the lower energy xrays and the pulses as well. So that geiger counter would undercount exposures.
congratulations, your awesome choice of topics, combined with a wonderful, no bullshylkl I'mt approach to themm has one you a lifetime subscriber, and a big pile of likes.
I wonder how high it would've read had it been for a whole minute? I have the same Geiger counter and it displays the average of the last minute, meaning the intensity of the x-rays were actually much higher than what the reading was....then again, the reading is in uSv/h, so a minute is only a 60th of that.
This might seem like a silly question but I have a phosco 55 watt SOX low pressure sodium light bulb and I want to fire it off, what would I need, BTW no igniter, leak transformer or Ballast
i'm trying to figure out what the x ray dosage produced by WELDING (yes common welding) is ... you'd think it's sizeable in quantity considering the same materials as in a crookes tube are used (tungsten anode etc etc) as in TIG welding
One thing to be aware of is the radiation pattern from overdriving vacuum tubes (like you are) can be extremely uneven. As such, you may get artificially low readings because the geiger counter is not in a hot-spot of the beam. There are some cool photos around the internet of people measuring the emission patters of various vacuum tubes with phosphorescent screen, and long exposure photography.
The old colour crt in TVs had X-ray protection circuit as the tube contained a metal shadow mask and a 25kv final anode voltage. If the final anode voltage is too high the electrons have too much energy and hitting the shadow mask creates X-rays. It's not the vacuum causing the X-rays rather the high energy electrons hitting metal.
You should apply to the school as a science teacher...and use this video as part of your portfolio 😂😂...I'd love to be a fly on the wall in that interview and see their faces...😂😂😂😂😂👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼
Ok... here is a question for you. In my youth... about 1975 or so... we took a color picture tube and placed it on a metal plate (ground plane), then connected the output of a 15,000v 60mA neon transformer to the side port... with a chain suspended from insulators about 3 inches (7.6cm) above the tube, and connected to the other side of the neon transformer. (Basically a Leyden jar from hell) We fed it with 120vac run through diodes to produce pulsed DC. It would charge up a bit, then make lightning. Just how stupid were we on that? Didn't think about X-Rays... I was 15 at the time.
Great vid! I've wondered this for years when watching you with those HV transformers :) the state of matter vid springs to mind.. I wonder if a bare CCD sensor could "view" xrays?
why does a vaccum tube and hv generate xrays? i fix old crt’s for arcade games but they have an over voltage protection circuit. we’re only talking 20-27kV. just curious on why xrays happen.
Wow cool vid. I wonder if there would be more X-rays using DC and maybe the filament heated up. But anyway, good video about what can produce X-rays and what doesn't.
Maybe you can get xrays if you use heavy metal with high fusion point as anode and cathode, such as tungsten, iridium or molibdenium, and voltages around 100kV. That's what is used in xray tubes. A typical chest xray uses 120kV and 20mA.
Наука
"I wouldn't want to be in the room with that, let's turn it up some more" classic photon.
Turn down for what?
Filippe Barros Decrease the potentiometer's value for an unspecified reason.
+Tim Gomes Well on a flight at about 20km height there is also about 13uSV/H.
time to leave the room when it switches from uSv to mSv :-)
+Tim Gomes Well on a flight at about 20km height there is also about 13uSV/H.
time to leave the room when it switches from uSv to mSv :-)
+Tim Gomes Well on a flight at about 20km height there is also about 13uSV/H.
time to leave the room when it switches from uSv to mSv :-)
_looks at radiation meter_ "That isn't worth worrying about, so we'll up it a little more!" That's why I love Photonicinduction.
"We don't want to be in the room with that. Let's turn it up a bit more."
How is your brother Hammond doing these days?
Ayyyy i found the comment before Mr.Slav was Mr.Slav
Love your videos.
omg mr slav before he got famous :o
@@HwanyPlayz ikr
Heyy mr slav
3:02 "Do Not Attempt This Yourself!"
Aye, mate. I'll just put my GU81 Transmitter Tube back in its box, then!
KITTY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
🐈
@@Calthecool imagine being the first one to reply to a comment 8 years after it was posted
@@frommarkham424
I don’t have to
Will it pop?
@@frommarkham424 hes living that shit bro
"Wouldn't want to be in a room with that.... Let's turn it up a bit more!"
loved those sparks, fascinating educational video
time 5:07pm Sydney...almost dinner time, them x rays made me hungry
Hi famous guy old comment
that's stomach cancer you're feeling, not hunger
“Don’t wanna be in the room with too much of that. Let’s turn it up a bit more”
i can feel the radiation from here
It tickles in the eye balls.
It made my light headed
Why do i taste metal?
@Rafinio bootowalny pendrive i hope you get more than 3.5 roentgens per hour in your sleep.
Next up: Giving my neighbors cancer with gamma rays.
you need to have some nice magnetron experiments...see if you can light the neighbors roof on fire from your lab ?
Magnetrons require a microwave oven/resonance chamber to build up enough heat by the wave going over the same area again and again. I've tried (not to burn anyone's house down though)
he uses one on his computer
Definitely legal
Watching out for xrays yet still smoking there at the end :,D
I miss this, I mean I wouldn't want to be his neighbour, but I miss seeing these experiments
He’s back
I'm so glad you do these types of things for the rest of us without the necessary training//resources to do it safely. Stay safe, keep recording.
You sir are certifiably mad! Definitely a subscriber for life! I wish I lived close enough to visit but not quite in the flat next door. Your videos allow me to see all the experiments I would enjoy myself less the expense and potential of acquiring an angry bout of tackle cancer. Keep up the great work.
Wait, so why does the radiation level stay high even after the x-ray producing apparatus is switched off?
Average over time.
@JONOTron precisely
Also maybe making ozone, those may count, depending on the detector.
The counts are averaged over time. It takes time for the counts to decrease in the detector.
However in reality x-rays appear and disappear as soon as the device is switched on or off
t. Physicist
Really cool shot at the end :) you should experiment with shots and angles like this in your new content a bit more. A long time fan!
I love your videos. Please don't ever stop making them.
i wonder what his electric bill looks like ?
+fo shizzle Is not that much. You can have 10 amps at 250 volts in main and get 12000 volts at 0.2 amps.... It will be 2.5 kw/h. 5 Kw is 1 euro in Romania. My last electricity bill (for 2 months) was 200 Kw - 50 euro. So you can play 2 hours non-stop with a step up transformer as said and pay 1 euro....
Note: It is 2.5 Kw/h if that transformer is in full load.
I saw that but I just wanted to make it clear.
+golden pony boy No he Doesn't?
Its a joke, smart one.
Please come back soon Andy. I really miss your videos
@Gamer929 W.I.P. actually, if you go in the comments of his last video, he says he's coming back soon.
@@RedPixels_ he s back
No x-rays before filament and cathode volts are provided you stupid morons.
That was wild I have to admit bringing these old things back to life... Watching the electronic arc. Another you for a great Holloween display.. with the arc jumping was really interesting ...
You make Tesla smile!.
Cool to experiment, BUT A geiger counter doesn't detect X-Rays!! Totally different frequency. There is a reason why radiographers use fluorescing screens.. because they DO detect x-rays -- big time!! Yes I was an x-ray engineer. FFS get yourself some eye protection as you are probably already well on the way to cataracts.. And by the way you need 100K to 150KV, 200K is too much, the x-rays will just pass through everything. Medical x-ray tubes use an aluminium sheet to protect you from the low 50KV stuff which is seriously damaging to eyes and skin. :-)
yay! also nice comment
Yup the job of a geiger counter is to detect radiation. Although, x-rays are radiation, the amount of radiation produced by x-ray CRT is not a significant amount to cause cancer. But can cause cancer in the long run. But its very true that the geiger counter cannot detect x rays. if that large tube produced x rays, the geiger counter would have started beeping WHILE the high voltage was on. NOT after.
Amen.
Ryan Haquim the reason there is a delay between the tube being on and the Geiger counter reading is due to the slow response of this particular Geiger counter.
Geiger counters do detect X-rays because they are ionising and you can check this on google yourself. Inside the counter the geiger-muller tube contains a gas is ionised by the radiation and this produces an electric current. The main reason why fluorescing screens are used is because you can generate an image from them.
The large tube probably did produce X-rays, but the counter was positioned too far from the tube to detect much of it. A lot of the newer tubes are impregnated with lead so this could also be reason.
Great video. I thought that more X-rays were emitted when the filament heater is turned on.
kill a wasp with xrays
The 1B3 tube in old TV sets would emit x rays it was housed in a metal box.
that clip at the end was just awesome :D
Good advise Photon! And beautiful images that you have made with your rotating camera!
i spent a day in Chernobyl and pripyat in 2008. the geiger counter read 5000 (normal background .5-10) and i wasnt worried. being in a room with them wouldnt worry me either. long term exposure is what you need to worry about if i remember correctly...
"Like this GU-81.." hahahaha
Classic Photon.
You're an inspiration to me, Photon!!!!
Loving the vids, keep up the good work
This may seem a bit late, but for anyone who is watching this in the future, in AUSTRALIA the legal dose for an un-licenced person is 25.0uSv/h with an allowance for up to 1mSv per year. And yes I am a licenced Industrial Radiography Technician, I'm not just spitting numbers out the top of my head.
Anyone watching this in lockdown?
It's great that you are actually doing what most of us likeminded people have at some time thought about...👍🏼😂 the fact your doing it is actually saving lives...😂😂😂👍🏼👍🏼👍🏼👍🏼
I don't care how late it is, if I see a new video I pounce lol
what your detecting is most likely loose beta particles (electrons) from the high voltage.
I suspect you're correct. I am not familiar with this particular Gm counter and whether it can differentiate between beta particles and X-rays. 200 kV isn't really high enough for X-rays.
Very nice....what a nice dolly turning around !
Brilliant!!! Really miss you here man.
Getting there. Electrons can't move at c (they have mass, which would cause all sorts of physics to break), but electric fields can. This is arguably the most counterintuitive thing in basic physics, but while electrons can't move at c, electric fields can. The best way to think of this is as if the electrons can see each other. When one electron sees the other start moving, then the observing electron starts moving. (contd)
Wow it's 11 pm here, I recall you being 5 hours ahead of me. 4 am? lol Now that's devotion!
hehe now that is a classic, i need to do that too.
I feel like I need a lead apron and helmet just to watch this lol
You sir are changing the world.
I'm holding my phone at armes length while watching this. Hopefully that should help.
Absolutely loved the vid - very nice, and as a bonus - NO X-rays from high voltage. Keep the experiments coming!
This answers a alot of questions. thank you
Neighbour’s house:
[lights dim]
[tv switches channels 15 times]
[Wife’s hair stands on end]
Neighbour: oh ffs
9.70 u/sv might seem high but that's about how high the radiation is when you fly in an airplane at cruising altitude. It's really not dangerous at all even over long periods.
Cool demo! ...and those little GQ Geiger-counters are cool, too... I bought one of their GMC320+ V5's .... awesome sets.
P.S.:
Here in Big Sur California the background count averages 14 to 15 CPM... I see it's about the same there in your place... seems to be like all over the Earth... unless one lives in Pripyat or Fukushima or somewhere.... it's a little higher in some places.
Thanks for another fantastic vid Photon. We like x-rays lol
Good to see you again, photon.
While I would agree with most of the comments on here about how this is likely a malfunction in the Geiger, it's worth taking into account that the Geiger was measuring steady higher readings of X-rays which each coincided with an increase in voltage to each tesla coil on each attempt. Malfunctions, or spontaneous readings in the Geiger due to large emf would show up as jumps or spikes and would likely have inconclusive readings rather then the steady output variables which can be seen. The only way to rule out that emf was indeed causing the reading would be to measure its strength and place the meter further away. But really though, chances are X-rays were indeed produced. Be safe out there ! Leaving the room did little to help you btw... Unless your walls are thick concrete or some sort of reflective metal. Given the reading on the Geiger was relatively low and the period you were exposed wasn't that long you should be okay... But perhaps a insulated faraday cage around your next test, set it up to encase your tesla coils, put the Geiger inside with your camera in a non reflective insulator so you can avoid further harming your cells in future experiments.
Beautiful,beautiful,beautiful
I watched from the very beginning back in the days with the geek group and all that drama. Always enjoyed the videos!
you don't wanna be in the room with that,
lets turn it up a bit more lol
you guys are awesome!
Damn you got some kewl toys man
You should get a pressurized integrating ion chamber it will detected the lower energy xrays and the pulses as well. So that geiger counter would undercount exposures.
So that's why mama always told me not to sit too close to the TV... specially with these guys around.
That authorities allow you having that stuff at home, next to neighbours.
congratulations, your awesome choice of topics, combined with a wonderful, no bullshylkl I'mt approach to themm has one you a lifetime subscriber, and a big pile of likes.
I wonder how high it would've read had it been for a whole minute? I have the same Geiger counter and it displays the average of the last minute, meaning the intensity of the x-rays were actually much higher than what the reading was....then again, the reading is in uSv/h, so a minute is only a 60th of that.
This might seem like a silly question but I have a phosco 55 watt SOX low pressure sodium light bulb and I want to fire it off, what would I need, BTW no igniter, leak transformer or Ballast
They really missed an opportunity by making the buttons separate and not making them be the four parts of the radiation symbol on that Geiger counter.
i'm trying to figure out what the x ray dosage produced by WELDING (yes common welding) is ... you'd think it's sizeable in quantity considering the same materials as in a crookes tube are used (tungsten anode etc etc) as in TIG welding
not that lamp you use. Soviet GP-5 lamp to give more X-ray
than GU-81
The number at 4:30 is about the same level of x-rays that one receives in dental radiographs. :)
One thing to be aware of is the radiation pattern from overdriving vacuum tubes (like you are) can be extremely uneven. As such, you may get artificially low readings because the geiger counter is not in a hot-spot of the beam.
There are some cool photos around the internet of people measuring the emission patters of various vacuum tubes with phosphorescent screen, and long exposure photography.
"Just the good old boys, never mean'in no harm."
How, How did you do that last shot?!? :o)
Hahaha Phonton i saw ya in Discovery yesterday
I try everything i can at home!
The old colour crt in TVs had X-ray protection circuit as the tube contained a metal shadow mask and a 25kv final anode voltage. If the final anode voltage is too high the electrons have too much energy and hitting the shadow mask creates X-rays. It's not the vacuum causing the X-rays rather the high energy electrons hitting metal.
You should apply to the school as a science teacher...and use this video as part of your portfolio 😂😂...I'd love to be a fly on the wall in that interview and see their faces...😂😂😂😂😂👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼
Ok... here is a question for you. In my youth... about 1975 or so... we took a color picture tube and placed it on a metal plate (ground plane), then connected the output of a 15,000v 60mA neon transformer to the side port... with a chain suspended from insulators about 3 inches (7.6cm) above the tube, and connected to the other side of the neon transformer. (Basically a Leyden jar from hell) We fed it with 120vac run through diodes to produce pulsed DC. It would charge up a bit, then make lightning. Just how stupid were we on that? Didn't think about X-Rays... I was 15 at the time.
askjerry A unmeasurable infinite levels of idiocy
Don't think 15kv would have done much
"Yes you probably wouldnt want to keep doing that"- keeps doing it XD
you are the nutty professor mate
I am planning to use a GU81M for a VTTC. At what voltage did this tube start to produce Xrays?
Television tubes already have high voltage and that is why the glass is lead lined.
Great vid
Great vid! I've wondered this for years when watching you with those HV transformers :) the state of matter vid springs to mind.. I wonder if a bare CCD sensor could "view" xrays?
I'm thinking of pulling off a heist...would you be interested in demobilising the electrics for me? 😂😂
if anyone can do it, it would be photonic induction! xD
id be fekin lost without ur vids by the way!
Experiência excelente. Rio RJ Brasil
why does a vaccum tube and hv generate xrays? i fix old crt’s for arcade games but they have an over voltage protection circuit. we’re only talking 20-27kV. just curious on why xrays happen.
Amazing
I remember a shoe shop having an X ray machine that you could stand with your feet in to see how well the shoes fitted.
Peter JF Yep, those things were called Pedoscope. They delivered up to 130mSv to your feet :)
Excellent.
It just so happens that I plan to get a cheap small Geiger counter as I find that kind of thing interesting.
I just got up. lol I've been in bed from an injury since about 1pm. It's about 11:30pm now. Interesting video, Photon!
Kreosan had so strong X rays that the Radiascan went off scale!
You might note that you get zero X-rays up until you exceed like 13 kilovolts.
Photonicinduction: "don't try this at home!"
also, Photonicinduction at home:
I do wonder about the power lines the run past my apartment window, sometimes I can hear them humming lol
Same, except it's the towers that hum. The humming usually comes from the transformers.
i love your experiments..!👍
We dont need to be in the room with that.,..lets turn it up a bit more! :) love it classic photon
At first I thought "THAT IS THE BIGGEST RAT BEHIND....never mind."
Wow cool vid. I wonder if there would be more X-rays using DC and maybe the filament heated up. But anyway, good video about what can produce X-rays and what doesn't.
Lowkey actually miss this guy.
@corey Babcock Me three
returned today :)
@@Veldoril I know, saw his new upload this morning
It was good soviet tube.... Not any more.
Федор Подъяблонских cnc
+join man what?
Фёдор Подъяблонских HAHAA Your probably some American gamer kid.....
We Want MORE!! :)
Maybe you can get xrays if you use heavy metal with high fusion point as anode and cathode, such as tungsten, iridium or molibdenium, and voltages around 100kV. That's what is used in xray tubes. A typical chest xray uses 120kV and 20mA.