Creating X-rays with a standard vacuum tube--- make money online

hey everyone I thought I'd play with

some x-rays tonight so I got ahold of a

RCA 8:11 a vacuum tube and I hooked it

up to my high-voltage supplies this is a

30 kilovolt at up to 300 micro amp power

supply and I'm going to operate this in

sort of cold cathode mode so the problem

with turning on the filament using a

filament voltage of 3 to 6 volts to heat

up the filament the way this vacuum tube

was intended to be used is that the

filament will the the tube will conduct

so much current that we can't get the

voltage high enough to produce x-rays so

really the best way to produce x-rays is

to get you know a very high voltage so

that the electrons are accelerated very

to a very high speed inside the vacuum

tube and then when they crash into

something they produce the x-rays so if

the filament were on we really couldn't

get the transmitting voltage high enough

because so many electrons would be

flowing off the cathode that it would

conduct a lot of current before we get

the voltage high enough so in cold

cathode mode we can get the voltage

really high and inside here some of the

electrons will get going really quickly

and we'll get some x-rays out of it so

to detect the x-rays I've got this which

is a an image intensifying screen for

medical x-ray use so inside here there's

two phosphor screens and what you're

supposed to do is put your black and

white film inside here and then snap it

close so it's light-tight do this in a

darkroom and then put this you know

below the patient or whatever and apply

the x-rays and inside here the x-rays

will cause the two phosphor screens to

fluoresce and expose the black and white

film and you go back into the darkroom

and take the film out and develop it so

I'm going to put the tube on here and

this is my real careful high voltage

wiring setup this is actually a true

high voltage cable this is not this is

just a ground wire going to the power

supply and then I'm going to put the

Geiger counter nearby

I don't like that okay so first I'll try

this with the lights on just so you can

kind of see how everything is going to

go and I'll call off the voltages here

as if increase so we're at about 10

kilovolts right now and nothing much is

happening and we get up to about 15

kilovolts still nothing and we get up

close to 20 we're starting to get some

x-rays off of the system there and

what's happening is they're coming in

fits and starts if you watch the current

meter on the power supply you can see

that it's drawing them in pulses if we

raise the voltage a little bit more you

can see there's sort of an average

amount of power but there's still

pulsing and the reason that we're

getting pulsing is that there's a lot of

breakdown going on inside the vacuum

tube so the thing arcs over on an

insulator inside the vacuum tube and it

causes you know the power supply to

overload so you might be thinking how is

it possible to have an arc inside a

vacuum tube it actually is impossible

for an arc to happen in a pure vacuum

that inside the vacuum tube there are

insulator surfaces and the surface

provides a conduction path and once the

arc strikes it might even carbonize some

of the surface dirt and increase the in

or decrease the resistance of the path

so high vacuum or x-ray tubes meant for

producing x-rays usually have the

electrodes on opposite sides of the tube

because there's really nothing you can

do to keep the arc from happening across

a surface they'll separate the

high-voltage edges putting it physically

far apart okay so what I'm going to do

is zoom in on the tube and then turn the

room lights down so we can see if

there's any fluorescence going on here

so we're getting close to twenty

kilovolts and what I'm seeing mostly is

the tube glass itself

fluorescing so most of the x-ray energy

is being lost in the glass of the tube

itself I'm not really seeing the

fluorescent screen doing a whole lot of

glowing let me just see if I can crank

voltar's a little bit higher yeah I'm

not really seeing the screen glow it

looks like most of the light is coming

from the glass itself so just for kicks

I'm going to hold the Geiger counter

near where I'm standing behind the

camera and I'm going to turn this back

up to about twenty kilovolts and you can

hear that the Geiger counter is not

particularly active so if I bring the

Geiger counter closer to the tube and

hear it pick up but if I move a few feet

away where I'm standing behind the

camera the pulse rate is pretty much

background I don't hear very much so

assuming this tube can detect the x-rays

it's fairly safe to do this standing

where I am okay see you next time byeearn money online by clicking, online money income site, money earning sites, online earning sites, best website to earn money, free money earning sites, money earning websites, get money online, online earning tips, online earning without investment, earn money online without investment for students, earn money by clicking ads, earn money online without investment, online earn money website, online jobs to earn money, best online income site, top 10 online money earning sites, easy income online, easy online earning, earn money online from home, make money online legit, earn money online free fast and easy, online earning websites list, genuine online money earning sites, online work to earn money, online surveys to earn money, earn money through internet, best online income, earn money online data entry, easy ways to make money online, best online earning websites,