JET Fusion Reactor

[Jordan25071995]

This is actually the hottest place in the solar system :D

[sunNbass]

i didnt understood why Helium3 is so importent for this?

[etjr92]

@int1901

Yes it did happen, and if my source is correct the camera was behind quartz shielding :)

[mustanglead]

This place is just 20 miles up the road from me and it's surprising how many people around here have no idea of its existence.

[int1901]

so did the fusion actually happened in this experiment? How did they put the camera in ?

[routhoula]

how much does it cost to fire this up??

[Johnuwine]

Science, yeah!

[Upperfiend]

@Perokeznik The plasma is purple because the fuel used is a mix of hydrogen isotopes - Deutirium and Tritium. Hydrogen burns with a reddish purple colour in the huge clouds of it in the universe. The Deuterons and Tritons are simply showing their characteristic behaviour.

Hope that helps ^^

[Hypergalactica]

I do hope these programs become sucessful. But the problem here is that the magnetic fields are creating with superconducting niobium at supercooled temperatures, with a reaction hotter than a stellar core only a few meters away. What they need is something like Avatar's unobtanium. I hope that do niobium or a suitable equivalent exists elsewhere in the solar system, so my dreams for our future can be fulfilled.

[donkisiko]

@Hypergalactica

The heat within the plasma is contained by the magnetic field so it hardly if at all touches the plasma facing walls. What this means is that you can still freely use superconducting material, however it would be ideal if so much energy didn't have to be put into cooling the damn thing ^^; that's where most of the energy is wasted! Maybe one day eh?

[Perokneznik]

This may be an stupid question, but why is the created plasma purple?

[nchan1213]

how the hell did anyone film the inside of the reactor? isn't it hotter than the sun?

[anariaq]

@nchan1213 They contain the plasma in magnetism so it dos not touch the walls of the fusion reactor ( and the camera ) And that's the problem with this fusion reactor. The energy used to contain the plasma with magnetism uses more energy that the reactor gives bag. The sun have an advantage. It has gravity to contain the energy. The only energy we can use is magnetism.

[nchan1213]

i knew about the magnetic fields containing the plasma....i didnt know that they actually glued the camera to the inside of the reactor lol. i'm still guessing with the magnetic fields to contain the plasma some heat would seep through and melt the camera....guess i was wrong :S

[anariaq]

@nchan1213 Actually my bad. Seems that the camera is actually outside. Filming trough a hole with glass. But what I cant understand. If the magnetic field is so strong. Why is the camera not affected :P I also think it was something with the plasma actually is slowed down by actually hitting the walls of the reactor. Means they cant reach a accelerated state where they can safely produce enough energy to surpass the actual energy use of the magnetic field.

[anariaq]

@nchan1213 But not 100% think I need to read about it before I say more BS :)

[anariaq]

@nchan1213 Should have said "read more about it" :P

[zander798]

lol people are mixing up fission with fusion... someone is either really dumb, or just a bad troll

[Pokertron200]

since this is a fusion reactor, it would be great if a fission (conventional nuclear) reactor could be hooked up to the exhuast and split it back into the Tokamak's fuel (e.g. fuse hyrogen into helium, split into hydrogen, repeat).

too bad fission reactors aren't efficient enough to split helium = /

[Maverickx89]

Sorry, but if you would have listened to physics in school, you would know how stupid this comment of you was...

if fusing cores frees energy, you would need to put the same amount of energy back into it to divide the core back.

there is NO "perpetuum mobile"

[Pokertron200]

That's why I said they weren't efficient enough =/. Besides, the hydrogen would eventually run out because it would be turned into helium then split into hydrogen again... but splitting helium would take huge amounts of energy for a small yield.

[rustygates]

You cant do that, Helium is not fissile at all. You cant split it like that to make a nuclear reaction.

[LibertyAtYourService]

Guy.

The problem with splitting helium has nothing to do with the efficiency of fission reactors. If you are wondering why then I just can't help you.

[russell44]

ohh man u have serious problems understanding the basic principles of the world u live in....

[enkeilover]

Wow.

[SilentBob420BMFJ]

And this is supposedly 10x hotter than the sun? So that means that it's 100,000 degrees F.

[fitzgeraldismint]

no its 15 million degrees celcius lol. and the atoms inside travel at like 45 million metres in a second its unbelievable it would evaporate a human instantly if u wer to go in there

[SilentBob420BMFJ]

Wow, I wasn't aware the surface of the sun was WAAAAAAY cooler than the core. The surface is 10,000 degrees, but the core is way up in the millions.

[pacmanzz]

150 million to achieve a deuterium-tritium fusion into helium

[timmo1986]

I worked on this project for 18 months. The site produces 2/3 of its own power, and the other 1/3 is drawn from the National Grid. Inside the Tokamak is contaminated with Beryllium and Tritium!

[fitzgeraldismint]

ive heard that in the uk they are goinfg to run JET on seawater or something from the oil in the water. and the actual heat is like 15 million degrees celsius?

[AnarchyRules25]

i love seeing the heat on the manetic field, that shit is as hot as the inside of the sun.

[skyler0114]

its actually ten times hotter than the inside of the sun

sun=15 million degrees

JET=150 million degrees

[peanuts2105]

This is in Cambridge I believe

[thomasarran]

The reactor is situated on an old Navy airfield near Culham, Oxfordshire. The components for the JET experiment came from manufacturers all over Europe, with these components transported to the site. Because of the extremely high power requirements for the tokamak, and the fact that power draw from the main grid is limited, two large flywheel generators were constructed to provide this necessary power.

[DormantAsh]

The primary problem with scientists currently attempting STABLE <----- (stable) fusion is keeping a large ammount of hydrogen atoms in a pinpoint sized area for a long period of time. the first thing that, that hydrogen is going to do is expand and rise. Stars (including Sol-(the Sun) can cause stable fusion very easily because the gravity is strong enough to compress and condence the hydrogen atoms. And when you compress a gas, it heats up. Thus! (love that word) stable fusion... XD I'm 13

[afkhajiit]

I don't care.

[Shiznoz222]

you typed the 3 and the 1 in backwards order...

[EggingCheese]

Culham fusion reactor is 5 mins down the road from me, that place there in the video is the hottest place in the solar system! wierd to think thats 100,000,000 c

[yerty2000]

it's four times hotter than that, chap. :)

[rotvika]

u know most us tech is european that whent to school in the US? just search on youtube European Science WorldLeading you'll see

[joeline130291]

LOL funny comment

[dibbuck]

I think I made a fusion reaction once by shining a torch behind my scrotum

[koalorka1]

European technology FTW!

[DanielJRead]

World technology fuck the EU

[koalorka1]

I don't like the EU either, but it's European technology with American and Japanese input.

[marcos13af]

Good video,interesting!!!Maybe this model of reactor can be used in my experiments...

Do you believe that 50% of all Matter can be converted in pure electricity?!This is what you can call of Advanced Technology,this is the Lost Link or Alien Technology if you prefer...Crazy thing,but it is real...

[elgranto7]

well is it not the lost link or alien technology, stop trying to act smart Plus i doubt your experiments will be better than the ones that will be peformed in the next 30 years.

[stevebd1]

Thanks for your positive comments. Regarding your statement of converting 50% of all matter into electricity, considering that at the current cutting edge of nuclear power, the fission process only converts approx. 0.15% of its uranium fuel into energy and fusion converts approx. 0.6% of its tritium/deuterium fuel, 50% sounds a little out of reach in the near future.

[marcos13af]

Yeah!!!You're right at this point,but almost 50% can be possible,if you imagine,now we had used the created heat by fusion or fission process to propulsion of turbines to run generators,it's causing huge losses of energy.I want propose a new process,and the developments in this field(fusion reactors)is great,it is very clean and safe.

[Piontau]

As far as I'm aware, black holes acheive a little under 50% conversion so you're aiming a bit high...

[panzarw]

@stevebd1 Hi just saw this reply and I"M Shocked to see that only tenths of a percents are harnessed.

why its not a high number?

or is it like so that if it was 100% then it would be used up in 1 sec, but if a lower % then it would last longer?

and where did you get those numbers?

[stevebd1]

@panzarw Actually the tritium/deuterium reaction works out at a little under 0.4% (all figures in e-27 kg)-

Deuterium nucleus (3.344) plus tritium nucleus (5.008) means an initial mass of 8.352. Fusion results in a Helium nucleus (6.646) and a neutron (1.675), a final mass of 8.321, the difference is 0.031 (multiply by c^2 for joules), this being 0.37% of the initial mass. The proton/proton reaction in the sun is marginally better with 0.44% of the initial mass being converted into energy.

[Nichen]

Awsome! Thanks for sharing!

[xixPANTERAxix]

Excellent! If you like science, check out my page... I worked under Wolfgang Ketterle in cooling barium-87 to the coldest temperature ever achieved!