Generating X rays

[@Caterday1234]

"I wouldn't want to be in the room with that, let's turn it up some more" classic photon.

[@filippebarros]

Turn down for what?

[@ozzie_goat]

Filippe Barros Decrease the potentiometer's value for an unspecified reason.

[@greekstraycats]

+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 :-)

[@greekstraycats]

+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 :-)

[@greekstraycats]

+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 :-)

[@RevSyd]

_looks at radiation meter_ "That isn't worth worrying about, so we'll up it a little more!" That's why I love Photonicinduction.

[@MRSLAV]

How is your brother Hammond doing these days?

[@voltfilms684]

Ayyyy i found the comment before Mr.Slav was Mr.Slav

[@joshualogan6655]

Love your videos.

[@HwanyPlayz]

omg mr slav before he got famous :o

[@GhostOfDamned]

@@HwanyPlayz ikr

[@asianboi.mp4929]

Heyy mr slav

[@protAtype4]

"We don't want to be in the room with that. Let's turn it up a bit more."

[@ItsJustElenore]

3:02 "Do Not Attempt This Yourself!" Aye, mate. I'll just put my GU81 Transmitter Tube back in its box, then!

[@leokimvideo]

loved those sparks, fascinating educational video time 5:07pm Sydney...almost dinner time, them x rays made me hungry

[@prakharmishra3000]

Hi famous guy old comment

[@cvspvr]

that's stomach cancer you're feeling, not hunger

[@Afrotechmods]

KITTY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[@Calthecool]

🐈

[@frommarkham424]

@@Calthecool imagine being the first one to reply to a comment 8 years after it was posted

[@Calthecool]

@@frommarkham424 I don’t have to

[@Piotr_T]

Will it pop?

[@MichaelOfRohan]

@@frommarkham424 hes living that shit bro

[@SamPlaysGames-hl7gv]

i can feel the radiation from here

[@jovanjanevski3747]

It tickles in the eye balls.

[@jeannetteschroer6964]

It made my light headed

[@davecrupel2817]

Why do i taste metal?

[@huntergreen6444]

@Rafinio bootowalny pendrive i hope you get more than 3.5 roentgens per hour in your sleep.

[@m1nc3m3at]

“Don’t wanna be in the room with too much of that. Let’s turn it up a bit more”

[@WompWompWoooomp]

"Wouldn't want to be in a room with that.... Let's turn it up a bit more!"

[@LazerLord10]

Wait, so why does the radiation level stay high even after the x-ray producing apparatus is switched off?

[@thomthumbe]

Average over time.

[@BritishTightEnd]

@JONOTron precisely

[@crackedemerald4930]

Also maybe making ozone, those may count, depending on the detector.

[@drmed92]

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

[@RodgerMudd]

The 1B3 tube in old TV sets would emit x rays it was housed in a metal box.

[@cones914]

Next up: Giving my neighbors cancer with gamma rays.

[@RODALCO2007]

Great video. I thought that more X-rays were emitted when the filament heater is turned on.

[@viagra5207]

kill a wasp with xrays

[@dmithsmith5880]

you need to have some nice magnetron experiments...see if you can light the neighbors roof on fire from your lab ?

[@JohnWilkinsonTesla]

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)

[@wetkneehouston6293]

he uses one on his computer

[@SheIITear]

Definitely legal

[@Adamisgood24]

Please come back soon Andy. I really miss your videos

[@RedPixels_]

@Gamer929 W.I.P. actually, if you go in the comments of his last video, he says he's coming back soon.

[@semizeul]

@@RedPixels_ he s back

[@PaulanthonyBridge-kt4eg]

No x-rays before filament and cathode volts are provided you stupid morons.

[@macfanpro]

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)

[@IlluminatedWhiteGuy]

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.

[@danielvanced5526]

I miss this, I mean I wouldn't want to be his neighbour, but I miss seeing these experiments

[@vinniebullterrier6456]

He’s back

[@ST0RMSHAD0W_117]

Lowkey actually miss this guy.

[@MoebiusUK]

@corey Babcock Me three

[@Veldoril]

returned today :)

[@ST0RMSHAD0W_117]

@@Veldoril I know, saw his new upload this morning

[@dylanscrogham]

i wonder what his electric bill looks like ?

[@MariusSumutiu]

+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....

[@MariusSumutiu]

Note: It is 2.5 Kw/h if that transformer is in full load.

[@MariusSumutiu]

I saw that but I just wanted to make it clear.

[@Amathyst]

+golden pony boy No he Doesn't?

[@MrNavyman53]

Its a joke, smart one.

[@jack-bl8zy]

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.

[@wysiwyg2006]

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...

[@Weaponsandstuff93]

At 4:08 there's actually an x-ray flash on the camera.

[@samuelphillippi]

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.

[@Fake0Name]

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.

[@joonarepo2067]

Watching out for xrays yet still smoking there at the end :,D

[@nzoomed]

at 5:03 is about what you would expect from a typical CT scan. X rays only travel in a straight line though, so the readings would possibly be lower in other parts of the room.

[@AlanCMcLaughlin]

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!

[@bertklotentjes481]

Good advise Photon! And beautiful images that you have made with your rotating camera!

[@gameragedad8953]

I love your videos. Please don't ever stop making them.

[@Injudiciously]

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. :-)

[@redford6110]

yay! also nice comment

[@saritanhjsirat1195]

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.

[@PatrickBaptist]

Amen.

[@matman7546]

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.

[@yky2884]

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.

[@Askjerry]

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.

[@INRG488I]

askjerry A unmeasurable infinite levels of idiocy

[@hugeshows]

Don't think 15kv would have done much

[@doodletune]

100 µSv/h It is necessary to take protective measures, e.g. to shelter indoors 30 µSv/h The dose rate measured at a distance of one metre of a patient that has undergone isotope treatment. When the dose rate is less than 30 µSv/h, the patient can be discharged. 10 µSv/h Some protective measures are needed, e.g. avoiding being outdoors unnecessarily.

[@peterrivney552]

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 ...

[@drlegendre]

Pretty sure you need to power the tube heater / cathode before you'll get any serious x-ray emission. It's streams of highly accelerated electrons striking the tube structures that produce the x-rays. With a cold cathode, the electron supply is limited to free electrons in the cathode materials. Fire up the heater and I suspect things will look very different.

[@ddanielmiester]

the meter does averaging. because of the sporadic nature of the detections, it has to assume that each photon(cause that's indeed what they are) is worth say. a nano Sv, it then counts the detections over a rolling 5 minute window to generate an estimate of the radiation dosage.

[@AlexanderWinkler]

what your detecting is most likely loose beta particles (electrons) from the high voltage.

[@paulanderson79]

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.

[@ButterBallTheOpossum]

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.

[@supertna9154]

Television tubes already have high voltage and that is why the glass is lead lined.

[@peterjf7723]

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.

[@DarlMcGinnis]

Peter JF Yep, those things were called Pedoscope. They delivered up to 130mSv to your feet :)

[@Oxizee]

That authorities allow you having that stuff at home, next to neighbours.

[@HeddyGreen]

You should try running some high voltage into on of those xenon bulbs and see how much x-rays you get

[@willb2520]

"Like this GU-81.." hahahaha Classic Photon.

[@macfanpro]

Since the electrons can't see each other faster than the speed of light, the movement propagates at the speed of light. This is how electric fields can propagate at c even though electrons can't move that fast. Electrons simply cannot reach the speed of light, since they have finite mass, and particles with mass can't reach c, so you can actually have a stationary electron (though it's really, really hard). Essentially, voltage sets the speed of the electrons. The more voltage, the (contd.)

[@ChrisG0]

I watched from the very beginning back in the days with the geek group and all that drama. Always enjoyed the videos!

[@mrmatt2525able]

that clip at the end was just awesome :D

[@videosuperhighway7655]

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.

[@gw4pjq]

Hi mate, In my early encounters with colour tvs they used to have a PD500 triode across the 25kv EHT as a shunt regulator. They could run orange hot and generate lots of x rays - a small but spectacular tube. Watch your bollocks though! Oh yes did you say you wanted a Mercury Arc Rectifier? I might be able to get you one. Where did you get that 15kw Short arc xenon lamp from? Take care buddy Phil.

[@tomvarley4344]

You would need to apply power to the klystron for it to emit x band radiation, connect the heater circuit.

[@stargazer7644]

X band radiation is non-ionizing. Utterly irrelevant unless you're heating your lunch.

[@Pete856]

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.

[@Litepaw]

You can't always trust geiger counters because they can overload.

[@chemistryscuriosities]

And the problem with the Geiger Mueller tube is it doesn’t really detect x-ray and Gammas that well. for that you need a scintillation detector. Like a Radiacode 101/102

[@FernandoDordete]

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.

[@Gameboygenius]

I'm guessing the most important factor in this case was that the beam was not focused, rather than the wall, if it's a wooden walls at least.

[@Kenneth_H_Olsen]

I thought the Frequency of the Coil was generating the X-Ray at 10^18 Hertz. I understand its the Voltage that distress the "Medium of Vacuum" in such a degree that it is raptured, and emit light. A 50Hz incandescant lamp. the Amperic friction on the Resistance wire between a AC or DC Voltage bias, creates the light emission. Not the high frequency AC oscillation, its the Voltage in Vacuum. What is causing the "friction" in Vacuum to create X Rays ? The eV determine the Photon penetration depht.

[@cjholmes2]

Just to give some context for the numbers, which are low, assuming that the counter is detecting everything: at 22 uSv/h, you would need to stand next to it for half a year of normal working hours to reach the nuclear workers dose limit of 20 mSv/year. Their limit is v conservative, but they try to limit things further, to about 1 mSv, so you could spend 45 hours next to it each year. Dose rate standing a few hundred metres from the Chernobyl sarcophagus is 3 uSv/hour.

[@Kenneth_H_Olsen]

Thanks. If I get it correctly: To create X-rays one need vacuum between the terminals, High Voltage and a heavy metal nucleus for the electron Ampere to target. When the Electron penetrates the atom, the atom emit a " light wave or X-ray", The Electrons too, propagate and travel at lightwave speed 3E8, That is the accepted velocity, even with Resistance on the copper wire, and radio. The speed of the electron is not depending on the Voltage. It seems X ray is a shockwave form of normal light.

[@pyrodoll2422]

Brilliant!!! Really miss you here man.

[@salat]

Heat the filament and try DC next time? - x-rays can be generated as Bremsstrahlung at voltages as low as 1kV - CRTs are usually limited to 27kV as above 30kV usage of tubes become "regulated" in concerns of x-rays at least in my country

[@d34d10ck]

Instead of buying a geiger counter you can also download a dosimeter app for your smartphone which uses the camera chip as a radiation detector. These counters are even able to detect pulsating radiation which other electronic dosimeters can't. Even the expensive ones. A lot of new and upcoming electronic personal dosimeters will be based on this technology.

[@dxhighendamplifiers]

Very nice....what a nice dolly turning around !

[@deathbytnt]

You usually receive around 0.1uSv from an xray, The dosage they received in that few seconds was much more than you would receive from an xray.

[@jasongatt1986]

Connect a small 6volt battery across the filament terminals and try it again the way you did in the video. (With the HV across the filament terminals and the housing) But do put some metal shielding between you and the tube. Just in case

[@macfanpro]

The mechanisim that you describe isn't generally accepted physics. In the standard interpretation, an x-ray is created when an high-velocity electron stops suddenly. As accelerating charge creates an electromagnetic field, this deceleration creates a field, which can be an x-ray. Air prevents this because it's nuclei are too light, preventing substantial deceleration. The vacum, however, allows high-speed electrons to pass, so when they do hit metal, they are still fast enough to emit x-rays.

[@whtwolf100]

Why does it keep going up after the power has been cut?

[@rak6976]

+legionbunny it meashures value over period not right in a moment, so it will show hi value even then power cutted off.

[@omba5368]

+Rak The Streamer does it go back down after a while?

[@rak6976]

Temmie yes, but a while

[@omba5368]

+Rak The Streamer ah ok thinking about buying one myself :P

[@chrispevan3763]

legionbunny radiation isn't very predictable or constant one minute you could be next to a reactor at 1 tick then it could go to 5 ticks almost instantly then straight down to 0.20

[@eurokid83]

Andy you should do the old high voltage on a TV again and see what kind of X rays are produced from it.

[@skins4thewin]

So that's why mama always told me not to sit too close to the TV... specially with these guys around.

[@onixtv4034]

You sir are changing the world.

[@kjpmi]

I'm not sure if anyone is going to see this since the video is pretty old but I have a question. Why is there a difference between the plasma arcs when it's high voltage vs. when it's high current? The high voltage arcs are in general very well defined with sharp edges. The high current arcs are very fuzzy and have less curves and bends. You also see arcs that are relatively slow compared to both of these, like in a jacobs ladder where the arcs are sharp and defined but tend to wave slowly. And sometimes you get arcs that are sharp and wave around super fast. What is the actual difference physically? Like what is happening physically with the plasma that makes them behave differently? And are these visual differences consistent enough to be able to use them to tell if an arc is high voltage or high current or both?

[@dizzychaseradio]

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.

[@Volta500]

What about high voltage DC? Like produced from a DC flyback with proper driver. Is it more or less likely to produce X-rays?

[@bledlbledlbledl]

how does that compare to if you point an actual x-ray tube at the same detector?

[@circuitblooper]

FYI,the Geiger Muller Counter that Photon uses is on Amazon. (traditional Amazon link)GQ-GMC-300-Radiation-Detector-Detection[slash]dp[slash]B006X3WNLC[slash]ref=pd_sim_sbs_indust_8 Not sure if this is necessary.

[@erikhendrych190]

2:21 - What's the name of the lamp please?

[@KOakaKO]

When you're talking at about 2:30... What is a "tongue dart lamp"??

[@JR9979]

he actually said "tungar lamp" it is a tungsten/argon diode.

[@KOakaKO]

JR9979 - I see. Thanks for telling me. I've never heard of it before, but it looks interesting. ;)

[@youtubechanell1-m8z]

you don't wanna be in the room with that, lets turn it up a bit more lol

[@spvillano]

I got plenty of x-rays from a 1B3 with a pinhole shorting the cathode winding to ground through the flyback core..

[@JimHendrickson]

I'd like to see the readings you'd get from a CRT. Also, why does it take the detector so long to drop back down to ambient once you turn off the power?

[@jameshicks7125]

I am planning to use a GU81M for a VTTC. At what voltage did this tube start to produce Xrays?

[@itsmayankkr]

Anyone watching this in lockdown?

[@zanders247]

@djpob Yep, you need a license for any high voltage radiation generating equipment (except televisions ).

[@yuandrew]

I don't think they make Polaroid 600 instant film anymore but if you could find some, photograph your x-ray source in a dark room.

[@fuhkoffandie]

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.

[@BulletMagnet83]

Autunite by any chance? I had some of that in my collection years ago... I wonder if I've still got it knocking around somewhere.

[@deltaxcd]

If X rays were generated for real, camera would go crazy and crash. Also efficiency is only about 1% so you have to put quite a lot of power to get something visible.

[@goose300183]

I am sure that this is real. He doesn't do fake bullshit on his channel. It really doesn't take many X-ray photons to get a microsievert reading.

[@delirio1987]

thats the cheap geiger counter from the ebay... does it even work properly? i wanted to buy one but didn't know if it was reliable

[@zackwildman3410]

i would think the uv light and the ozone would be more dangerous cause i dont see people taking them as serious as x rays

[@carpetmonk]

you have a rather slight different reading from your lab and the very start of the video. I just saw a recommendation that open air exposure to high voltage can ionize the scintillator tube. did you have an active source close to the counter at the start?

[@gunfuego]

I feel like I need a lead apron and helmet just to watch this lol

[@jamesrbrindle]

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.

[@fizzyplazmuh9024]

A cat? High voltage terminals? And giant capacitors? Perfect combination.

[@mzflighter6905]

I see that with the eyes of my imagination :P

[@mathysgobeil1592]

someone knows what driver he uses for his x-ray transformer?

[@mathysgobeil1592]

@Ghost Heart no its actually real

[@CosmologDiraEinstformula]

23uSV/h is an average background radiation from rocks in the UK, no need HV. The counter counts different values and takes an average

[@TizianoBacocco]

Also light is RF, but usually above certain frequencies it is considered just ionizing radiation, beside that , gamma rays are not particles and they are detected by a beta probe, as X-Rays are, xrays can be detected even by a CCD

[@duncsplace]

Absolutely loved the vid - very nice, and as a bonus - NO X-rays from high voltage. Keep the experiments coming!

[@GrantE90]

Different regions of the Electromagnetic spectrum are defined and named based on their interactions with matter. The effects of radio waves are defined as the collective oscillation of charge carriers in a solid material. Think of electron excitation (movement) in an antenna. X-ray's main effect in matter is the excitation and ejection of core atomic electrons. Search 'Compton Scattering.' At extremely high energies this can cause neutron activation and even particle-antiparticle pair creation.

[@GrantE90]

X-rays are created when an accelerated electron slams into a solid target at an extreme velocity. The very high voltage accelerates the electrons across the empty vacuum before slamming into a solid object. This is called "Bremsstrahlung".

[@fungo6631]

Kreosan had so strong X rays that the Radiascan went off scale!

[@TerryMcKean]

Cool demo! ...and those little GQ Geiger-counters are cool, too... I bought one of their GMC320+ V5's .... awesome sets.

[@TerryMcKean]

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.