The best channel on youtube. I wish I had the money and availability to study under the scholarship of this amazing professor. Amazing channel sir, thank you.
The way this prof explains is awesome. Love your videos on Nuclear Technology. I learned about CANDU reactors much better from your videos compared to Canadian schools 😊
Learned so much about nuclear and related issues. Always afraid of this after learning about chernobyl but found I had really no idea what happened or how this works. Thanks 👍
I mean, not really. It is physically impossible for someone to carry out this process alone. You'd need an enormous, sophisticated team-plus more money than God. If you somehow got that together, you'd definitely attract the attention to end up on that watchlist.
1. US assassinated Iran General ! 2. Israel Assassinated Iran Nuclear Scientist ! Based on UN Security council resolution Article 26 Chapter VIII those assassinations were categorized as declaration of War from a Nuclear Powers to an non nuclear country ! which allows Iran to built its Nukes for deterrence and saving Iranian existence
@@Madiction-kz4lh if and when Iran gets the bomb doesn’t matter because they know when they use it, they will turn into a parking lot that glows in the dark
@@Feelthefx no body has ever used Nuke except US , It's for deterrence that If US does something Soleimani Assassination, or wants to escalate remember that the US can be turned into the sand beach for centuries in case of any stupidity !
@@Madiction-kz4lh nope you’re wrong. Soleimani was not assassinated. He died on the battle field as an enemy combatant. He led attacks that killed hundreds of US soldiers. He was under sanctions by the UN and was ordered to stay in Iran. Soleimani decided to go to Iraq to lead an attack on the US embassy which is a clear act of war. He was killed in Iraq with a precision guided ninja hellfire missile. Justice was served.
So that's why we use plutonium in most of our nuclear devices! It's easier to enrich it at 3%, put into a seed reactor, and make plutonium-239! Because now you have something that can be chemically separated and more easily enriched! Thank you!
It also has a much better power yield/density for bomb grade. 14 lbs of plutonium in fat man, 140 lbs in little boy. Makes a huge diff if delivery method is by missile. Doc neglected to say it’s unlikely that anyone has a uranium weapon on the planet today. All ours have been dismantled; Russia: megatons to megawatts.
If I've calculated right, one needs mere 4-stage centrifuge to get to reactor-grade concentration and only 11-12 stage - to weapon-grade. Still on the photo we see hundreds of them. Perhaps they work in parallel because of low productivity. But if something works in parallel, it's easy to reconnect that in series.
Misha the Urenco TC21 centrifuge you need 240 of the machines in series one after the other the feed of 210Kg of UF6 to get 1kg of bomb grade materials so Iran could achieve this in 1 year but only 4 to 6 nuclear warheads a year. Donald Trump wants Iraq part 3 war this time with Iran and at the same time Israel will be wiped of the map by knocking Israel's nuclear power plants.
@@Evan_Bell You've got the separation factor wrong with TC21 centrifuge has a 5m rotor length and diameter of 0.2m it is rated as 100SWU/year meaning if initial UF6 feed into a 9100SWU/year, the feed will be 29.148Kg and the enriched product of only 3Kg at 5 percent now using the same TC21 centrifuge you need 210Kg of UF6 and 240 centrifuges one after the other to get 1Kg enriched to 90 percent.
What I find scarier is one of the US government agencies made malware that was designed to get to Iran's enrichment facilities and then spin up the centrifuges until they broke.
@@wompastompa3692 Of course, the truth is murky on that, and always will be. Yes, it is scary that they could do that. I had to go think about what I meant by 1.5X, a year ago when I wrote that. It must have been about enrichment by 1.5 at EACH STEP. If that's true, you might only need about a dozen steps to get to weapons grade.
How obtained uranium in powered form from mine's is converted into gaseous state and that too also in florird contains? Is another element is used in liue of floried in this regard?
The Question i had is, hey does the enriched Part dont start to react in the chainreaction an bloes the Facility off. How do we get from UF6 back to U235, an then to the fuelpellets?
I wish isotopic nuclear materials were ubiquitous without some Walter Peck type bureaucratic restrictions since uranium 235 is an essential fuel for routine spaceflights.
The key to enrichment is where the work is done. By the time you get up to the 3-5% enrichment you need for a reactor, you're already 3/4ths of the way to 90%. It's a nonlinear process. As to why UF6 is used, for one reason it's a gas under moderately sane temperatures and pressures, and the overwhelming majority of fluorine in nature is only one isotope, so you don't have that screwing up the mass difference. The downside is the UF6 is nasty stuff and requires very, very careful handling.
Can you enrich other metals other than uranium, I'm not really interested in making enriched uranium but I am interested in finding out if the same kinds of Concepts will work to concentrate other metals like maybe gold
Thorium can be breed into something fissile. In theory you can breed gold from mercury but then most of the isotope you end up with will be radioactive.
If you over-enrich the U235 with a few too many refinement steps, couldn't the material undergo spontaneous fission and explode? How is the concentration measured?
There have been criticality incidents were too much U235 has been put in too close proximity. Not during enrichment though, I think it was during reprocessing where it is in solution and too much of the solution was stored too closely.
world-nuclear.org/information-library/safety-and-security/safety-of-plants/tokaimura-criticality-accident.aspx 2 workers died in the accident I was referring to.
Or you can use natural unenriched Uranium in a CANDU type reactor. Which means your fuel is cheaper, you have less weapons proliferation, and you create less plutonium on the output too. Plus you can even use other power plants "waste", or weapons grade plutonium, as some of your fuel.
PLEASE MAKE A VIDEO ABOUT USING WASTE U238 FROM PRESSURIZED LIGHT WATER REACTORS IN HEAVY WATER REACTORS AND PLEASE MENTION IF IT IS COST EFFECTIVE TO IT. INDIAs EX- TOP NUCLEAR SCIENTEST SAYS IT IS SO.
What s to keep Iran from reprocessing the U238 into Pu239 once they have their reactors up and running. They wouldn't need to refine Uranium any more than 3%.
Several things; they need to enrich to reactor grade to begin with, which requires a large enrichment infrastructure. Infrastructure we've made very expensive through sanctions and famously successful cyber attacks (stuxnet). If you have an enrichment facility you might as well keep enriching until you have bomb grade uranium. Second, the plutonium in the reactor is in the fuel rods with uranium and other transuranics which requires a complicated and expensive reprocessing facility to extract. Then the Pu239 has to be enriched to high purity, though this can be done chemically. Simply enriching uranium to bomb grade might be cheaper as it requires fewer steps. It'd be a good question for the professor.
The energy and space requirement to enrich/reprocess is insane... so much so it can be detected pretty easily by spy planes, or by seeing the impact on the countries electrical grid.
Indeed, he skipped over a lot of isotopes of uranium. I'm sure this was intentionally done in the interest of time and clarity to discuss the position of reactor fuel.
Why not use heavy water as a moderator? Can use natural uranium i understand. Wouldn't it be easier to separate heavy water from light water than separate u235 from 238? NIH?
CANDU reactor use that. The problem is it is also hard to concentrate heavy water and they are a major part of the cost of a CANDU reactor. So centrifuge for heavy water or centrifuge for U235, your choice.
@@maggiejetson7904 so dispose toxic waste, and working with corrosive uranium hexafluoride vs water, and the separation process goes on for the life of the plant. How often does the heavy water need refreshing? Imagine the costs of a plant to separate u236 are not insignificant. Heavy water plant not cheap I imagine, but waste disposal has to be easier. Don't need people to wear radiation detectors with water. Don't know, but it seems candu offers some benefits.
You can actually get out this debt by providing other countries with better clean energy and to those worrying about what if it blows up while you try to extract it well there must be a chain reaction that's needs to start so without that reaction it's a deadline
Oh dear. Running the calc back to when the Earth formed, gives me a figure of U-235 abundance of 24% This means that, way back when the Earth was new.... You could make a nuclear bomb using just blacksmith's tools! (supply your own blacksmith of course, not my fault life too so long to get going!) A simple barrel full of about 300-400kg of pure Pitchblende would not only approach criticality, but drop a second barrel on top of it and it should go supercritical!!! Kaboom. (or at least one monstrously nasty Fizzle)
How do you get 24% We're only 1 half-life in, so U235 was only 1.4% concentration [remember, U235 half-life is 4.5 billion years, which coincides nicely with the formation of the Earth ~ 4.5 billion years ago, so 2x as much then as now.] Even the most optimistic estimates of the universe's age are ~ 20By, so 2^^5 = 32, 32x .7 = 22.4% U235. But that's only the amount of uranium formed during the big bang; since most of the uranium in the universe originated in later stellar cores & redistributed via supernovae, that calculation is essentially meaningless, esp. when given *most* estimates of the universe's age are
@@nunyabidniz2868 Sigh. The info is in the video. u238 halflife is 4.5billion years, yes. u235 halflife is 700 million years. a.k.a. 0.7 billion years. With earth age as roughtly 4.5 billion, it means we are one halflife in for u238 (doubles total) but we are also 6.4 halflifes in for the u235 (86 times total) so if we have 100 units of mixed U now (99.3% u238 and 0.7% u235), then at 4.5 billion years ago we had 198.6 of U238 and 60.2 of U235. 60.2/(198.6+60.2) = 60.2/258.8 = 0.2326 fraction, or 23.26%
What he is going to say is basically these huge plants were trying to extract 238 (10% non useful stuff) and make it into 235 (90% good enrichment fuel uranium)
Not exactly, you cannot change 238 into 235, what is going on here is like desalination by removing the things we don't need and increase the concentration of things we do.
Assuming energy resources permanently run out, that is to say they are (finite), there is no point in killing each other - USA, N.Korea, Iran and so on, over finite resources because even if anyone emerges as the ultimate winner after killing off all other competitors, that winner will eventually be met with a resource depleted world, meaning they would in the end - after all that murderous struggle & victory, die too. Surely our intellect should enable us to see such an out come. Assuming that energy resources do not run out permanently - which it seems is the case, but rather there can be periodic shortages, we can do one of two things. Either we continue to kill each other using the resources we have accumulated, from sources that do not run out permanently - a completely and utterly wrong thing to do, to use up the very infinite resources to destroy ourselves, or use those very resources to find more resources there by mitigating the shortages. This choice has been open to us since the dawn of our existence and will always be until we wake up to it. If we assume that humanity has a half life of 100 million years, the point being it is much less than the half life of elements of Uranium or the sun (sources of energy), this means the human life will run out (extinct) way long before these energy source will do. So these energy resources are infinite with respect to the humans maximum life spun. It seems we are killing each other under the mistake that resources run out permanently which is not true. They are sometimes in short supply. It is smatter to use the resources to find more because it is endless. I hope we learn this and quickly change. Both war and peace require huge investments one is unquestionably better than the other. Finally evidently no energy resources have really permanently run out in the last 1000 years. There is only theoretical speculation that they could run out permanently based on a mono-intellectualism.
Heat is what does all the work, we have plenty in the earth's core plus the sun. So what you are saying is the earth will go on but we won't! Greed, arrogance and compacency get in the way of progress.
The worry isn't about Iran getting the bomb. It's Iran getting the bomb and Israel immediately launching a nuclear first-strike against Iran that triggers Iran's proxies to attack Israel in response, throwing the entire region into a war that would cause an enormous spike in oil prices.
While that may be part of the political science equation, Iran's history of state-sponsored terrorism and generally bad-neighbor policies to the rest of middle-east make their achieving nuclear capability a scary idea. However, there's no real way to stop them w/o violating their sovereignty. I blame the commander of station during the original attack on the U.S. Embassy in Tehran during the fall of the Shah; his orders not to fire on the attackers violating U.S. soil led to this; a whiff o' the grape at that early stage would have sent a clear message to religious maniacs everywhere they still have to behave like civilized individuals or suffer the consequences...
If the Iranians to have a nuclear bomb, it would create so much problems for them, embargoes, sanctions, isolation etc that it makes sense for them to opt out. It is also unIslamic to attack non-combatants ie the women, children etc who perish in a nuclear attack. I do know for a fact that Iran needs a huge amount of energy for its industries and domestic needs.
"It is also unIslamic to attack non-combatants" Al Taqiya detected Targeting non-combatants is Islamic as that is what Mohammad did. wikiislam.net/wiki/List_of_Killings_Ordered_or_Supported_by_Muhammad Are you saying that the prophet Mohammad, peace be upon him, did un-Islamic things? Totally haram.
@@imonlyamanandiwilldiesomed4406 Prophet Mohamed(PBUH) did not target non combatants. Where did you pick this from? On the other hand he lay the rules of how wars should be fought.
Btw, Brazil's clearly demonstrated its technological prowess by building working ultra centrifuges domestically. But US-sponsored lawfare stopped it in its tracks using the lame excuse it was to fight internal corruption.
No, as he clearly stated in the lecture, the information on how to build a Little Boy nuke is already out there in the wild [hint: it's MUCH simpler than building a Fat Man plutonium-based nuke, but of course, the material is much more arduous to concentrate...]
@@connorrivers798 Actually, the know-how is out there. There was an author a few years back who basically compiled a book on how to build a Little Boy bomb from declassified sources. The only reason we see the *creation* [as opposed to buying mil-surp Russian nukes during the '90s] limited to state-actors is the economies of scale associated with the refining process. But it's entirely within the means of a modern large multinational... [Hughes, Bechtel, etc.]
Well the order that I'm watching the videos and the my downloaded video list is not available to anybody else and so my last comment was on a video unrelated to the video that was in the top of the screen in the Android RUclips app. But I caught the bug before, during this time and I exited from reply and went into I hope just getting to the good stuff video that I just watched comment list. I also hope that the error is only in the display of the two comments for two different videos a moment ago one on top of the other when I was actually about to comment on this third video but that seems unlikely. So I'm going to have to fix that at some point myself and I don't know how I'm going to get a bug report to RUclips but if the channel or could please understand what has happened when I said I finished watching the video in my prior comment I thought it was suspicious because I thought I had already finished watching the video when I made the prior, and of course I had it was just a different video and my last comment was likely the only comment I made on the entire video so my hypothesis which was speculation about why there were two comments there is apparently now in retrospect unknowingly not what I thought I was saying which was not speculation but obvious fact and since it's wrong it was an obvious fact and I hope my speculation is correct about what it in fact was in terms of being speculation as discussed. Now I used to joke with an electric utility Economist about the tubes that were seized being for swing sets not for the centrifuges and he laughed a lot at that joke but it's not any funnier for me now seeing that the centrifuges are for gas not for what I assumed them to be which is something other than gas spinning gases is something new to me and it seems to be a way to separate water vapor from Air. My understanding is that there is no reaction between the nitrogen and the oxygen in air and H2O molecule so you should be able to spin the air and my team spend a lot of time working out various techniques in terms of for example of vinyl record whether or not you would want to have the water be taken away from the oxygen and nitrogen by pushing it Downstream essentially as it spins and as the groove runs or not Downstream and whether you want the groove to be in the direction of the spin on the disc
How come it is perfectly fine for USA, Israel, Russia, Pakistan, India, China and even North Korea to own nuclear weapons but there is so much fuss when Iran tries to enrich uranium?
@@jbrady1725 Instead it's not because it's ''God's land'', it's because Israel has threatened to nuke major cities across the world once they detect a nuke coming their way.
I suggest all nuclear bombs be disabled since they have 90% u 235 they are literally loaded with the good stuff that's if they can do it but to be clear they just need to extract 235 and the nuclear weapons are disabled and we can actually use that source of uranium 235 without spending all this money on the process just one nuclear bomb has 90% of uranium 235 that's 90% not 3% which these reactors produce they are talking about uranium enrichment when their bombs are filled with them
too bad u cant bind an extra electron to one or the other, then ide say a mass driver would be better than a centrifuge. by adding magfeild resonance separataion you could force reject the u235 by mag repulsion while allowing the u238 to passthrough at velocity. also, the gravi sepiration would be much stronger in a particle accelerator than any centrifuge. u might not even need to bind the U to florine at all, using a mass driver like cern. at thoes power levels it wouldn't mater if it was a gas or not just mono molecule it first. ur standard methoid of refinement is outof date sad to say. a modified variant of cern would make a few grams in a matter of days, forget months or years. and thats without electromagnetic passthrough.
@@ralanham76 The video is flipped horizontally. The buttons on men's blazers are sewn on the right side of the body (perspective of the wearer). The buttons on his blazer appear on the opposite side, thus the image has been flipped.
@@IamJacksColon4 A Heavy water reactor, then what is there excuse for wanting to enrich Uranium. A heavy water reactor doesn't need enriched Uranium due to the heavy water not eating any neutrons.
@@IamJacksColon4 what this guy said but in less vulgar terms.. the US sitting on enough bombs to split the planet but hey hey no one else is allowed any
@@zapfanzapfan Easy enough to calculate. We can estimate burn-up at end of life, and we know the probability of fission products being produced from thermal fission of U-235.
Of course the US trades with and provides aid to Pakistan, India and Israel who each have nuclear weapons and have not signed the Nuclear Non-Proliferation Treaty. Israel got its bomb grade uranium for its first nuclear weapons by stealing it in the 1960s from a US plant in Apollo, PA that made nuclear reactor fuel for the US Navy. To cover the theft, they had to use poor material handling accountability that left the plant as a Superfund site that US taxpayers had to pay to cleanup. It was the sloppy material accounting that made the Atomic Energy Commission suspicious. The CIA later obtained physical evidence from Israel that had the same isotopic signature as the missing uranium.
This is my new favorite RUclips channel. This stuff is fascinating.
Same, accidentally stumbled upon this gold mine of a channel
Yeah, I've been binging since I discovered it. Beautifully presented interesting content.
YES THE IDIOT IS MAKING MONEY ON YOU AND HE COULD BE HOMELES ,A BLACK BACKGROUND HE CAN LIVE ANYWHERE
I have no use for knowing half the info I have absorbed from this channel, but I want more.
Dude, now you know, and fear less. Nuclear is probably future as it gives way more energy than any other for relatively low environmental impact.
That is the attitude! If more people where like you, the world would be a much better place :)
The best channel on youtube. I wish I had the money and availability to study under the scholarship of this amazing professor. Amazing channel sir, thank you.
The decades of study really show. Dude knows his stuff
I’ve heard people pronounce Iran as “eye-ran” and “ear-ahn” but I think this is the first time I’ve heard “eye-ron”. Great video still!
"Er ran"
The way this prof explains is awesome. Love your videos on Nuclear Technology. I learned about CANDU reactors much better from your videos compared to Canadian schools 😊
Learned so much about nuclear and related issues. Always afraid of this after learning about chernobyl but found I had really no idea what happened or how this works. Thanks 👍
I’m rewatching this video after I visited a uranium enrichment plant for work. I love this stuff and I’m glad to work with it
What a wonderful teacher. The complex made relatively simple!
If this guy was my teacher, I wouldn't have dropped chemistry.
This is a very useful channel.👍👍👍
Thank you very much Professor. I love your classes and clarifying matters exposition. Wonderful...keep on the good work hopefully !
Thanks for posting this! Very clear and understandable and stuff.
Sir I love your videos. They are really awesome!!
Now I am on a watch list
Quite cool and informative - now it makes more sense. Thank you.
I am terrible at maths, but I understood what you were saying in this video and I understood it. Thank you very much.
Thank you! Wonderful presentation.
I live about 15 minutes away from Oak Ridge, I always thought that it was Oakridge, I'm glad I'm only in High School.
Thank you, Teacher! I was studying these for my exam and was lost because nobody explains the process right! I appreciate it very much!
informative and to the point. subscribed.
That was good. Gave a thumbs up. Anybody bad mouth that guy make me mad. He is a scientist, leave him alone.
Hope everybody knows that we are on a watch list now. Watching videos on Uranium Enrichment 😂
I've been on several lists for decades. This is one of the milder videos I have watched.
Turns out I’m Mason and I know what the numbers mean
Yeah right, 80 year old tech.
I mean, not really. It is physically impossible for someone to carry out this process alone. You'd need an enormous, sophisticated team-plus more money than God. If you somehow got that together, you'd definitely attract the attention to end up on that watchlist.
@@Dasycottus exactly, just another brain dead comment
Great professor
Great videos. Thank you!
Well, I would say this video is dynamite, but that seems a bit underpowered given the subject.
Kudos, Professor. This is excellent content.
So thank you for Educating me on a very important topic that is relevant today !! Are we being watched now ourselves for being informed ???
4:14 edited by the U.S government in order to retain nuclear secrets.
Hahahaha, exactly what I thought
1. US assassinated Iran General !
2. Israel Assassinated Iran Nuclear Scientist !
Based on UN Security council resolution Article 26 Chapter VIII
those assassinations were categorized as declaration of War from a Nuclear Powers to an non nuclear country !
which allows Iran to built its Nukes for deterrence and saving Iranian existence
@@Madiction-kz4lh if and when Iran gets the bomb doesn’t matter because they know when they use it, they will turn into a parking lot that glows in the dark
@@Feelthefx no body has ever used Nuke except US , It's for deterrence that If US does something Soleimani Assassination, or wants to escalate remember that the US can be turned into the sand beach for centuries in case of any stupidity !
@@Madiction-kz4lh nope you’re wrong. Soleimani was not assassinated. He died on the battle field as an enemy combatant. He led attacks that killed hundreds of US soldiers. He was under sanctions by the UN and was ordered to stay in Iran. Soleimani decided to go to Iraq to lead an attack on the US embassy which is a clear act of war. He was killed in Iraq with a precision guided ninja hellfire missile. Justice was served.
So that's why we use plutonium in most of our nuclear devices! It's easier to enrich it at 3%, put into a seed reactor, and make plutonium-239! Because now you have something that can be chemically separated and more easily enriched! Thank you!
Hi Mr. NSA operative watching this dude’s IP and tracking all of his data. *waves in American*
@@ozymandias7392 what?
It also has a much better power yield/density for bomb grade. 14 lbs of plutonium in fat man, 140 lbs in little boy. Makes a huge diff if delivery method is by missile. Doc neglected to say it’s unlikely that anyone has a uranium weapon on the planet today. All ours have been dismantled; Russia: megatons to megawatts.
@@brothergrimaldus3836 it’s just a meme lol
If I've calculated right, one needs mere 4-stage centrifuge to get to reactor-grade concentration and only 11-12 stage - to weapon-grade.
Still on the photo we see hundreds of them. Perhaps they work in parallel because of low productivity. But if something works in parallel, it's easy to reconnect that in series.
Misha the Urenco TC21 centrifuge you need 240 of the machines in series one after the other the feed of 210Kg of UF6 to get 1kg of bomb grade materials so Iran could achieve this in 1 year but only 4 to 6 nuclear warheads a year. Donald Trump wants Iraq part 3 war this time with Iran and at the same time Israel will be wiped of the map by knocking Israel's nuclear power plants.
That'd mean a separation factor of 1.624. Far higher than any real centrifuge.
And with that separation factor, you'd only need 9 for weapons grade.
@@romanchomenko2912 source for the TC21 having a separation factor of 1.0206?
@@Evan_Bell You've got the separation factor wrong with TC21 centrifuge has a 5m rotor length and diameter of 0.2m it is rated as 100SWU/year meaning if initial UF6 feed into a 9100SWU/year, the feed will be 29.148Kg and the enriched product of only 3Kg at 5 percent now using the same TC21 centrifuge you need 210Kg of UF6 and 240 centrifuges one after the other to get 1Kg enriched to 90 percent.
It turns out, there are also U232, U233, U234 & U236, but are not found in the wild
Enrichment by 1.5X is SCARY. I didn't know centrifuges were that high.
What I find scarier is one of the US government agencies made malware that was designed to get to Iran's enrichment facilities and then spin up the centrifuges until they broke.
@@wompastompa3692 Of course, the truth is murky on that, and always will be. Yes, it is scary that they could do that.
I had to go think about what I meant by 1.5X, a year ago when I wrote that. It must have been about enrichment by 1.5 at EACH STEP. If that's true, you might only need about a dozen steps to get to weapons grade.
this didn't mention over feeding or under feeding tails enrichment or any of the recycling processes!
Hey I've been watching all of your videos. If I'm ever in Illinois, I'll be sure to give you a bit of tuition for your lectures ;)
Iran has a nuclear reactor Doc, called the Bushehr plant. 1k megawatts soon to be 2k and eventually 3. They are a nuclear nation.
I saw stainless steel tanks on a flatbed trailer that were labeled fissile material uranium hexafloride. I was surprised but I guess it is allowed.
This is better explanation than my lectures
How obtained uranium in powered form from mine's is converted into gaseous state and that too also in florird contains? Is another element is used in liue of floried in this regard?
The weight difference (1.0043) is not 4 thousandths of one percent, its 4 thenths of one percent, or 4 thousandths per one unit.
The Question i had is, hey does the enriched Part dont start to react in the chainreaction an bloes the Facility off. How do we get from UF6 back to U235, an then to the fuelpellets?
How did Enrico Fermi enrich his uranium for the Chicago Pile reactor?
I wish isotopic nuclear materials were ubiquitous without some Walter Peck type bureaucratic restrictions since uranium 235 is an essential fuel for routine spaceflights.
The key to enrichment is where the work is done. By the time you get up to the 3-5% enrichment you need for a reactor, you're already 3/4ths of the way to 90%. It's a nonlinear process.
As to why UF6 is used, for one reason it's a gas under moderately sane temperatures and pressures, and the overwhelming majority of fluorine in nature is only one isotope, so you don't have that screwing up the mass difference. The downside is the UF6 is nasty stuff and requires very, very careful handling.
Can you enrich other metals other than uranium, I'm not really interested in making enriched uranium but I am interested in finding out if the same kinds of Concepts will work to concentrate other metals like maybe gold
Gold panning follows a similar principle: the heavier stuff stays in the bottom.
Thorium can be breed into something fissile. In theory you can breed gold from mercury but then most of the isotope you end up with will be radioactive.
If you over-enrich the U235 with a few too many refinement steps, couldn't the material undergo spontaneous fission and explode? How is the concentration measured?
Critical mass is the answer
No. U-235 does not undergo spontaneous fission.
There have been criticality incidents were too much U235 has been put in too close proximity. Not during enrichment though, I think it was during reprocessing where it is in solution and too much of the solution was stored too closely.
Yes, just some poor worker that got irradiated.
world-nuclear.org/information-library/safety-and-security/safety-of-plants/tokaimura-criticality-accident.aspx
2 workers died in the accident I was referring to.
So enrichment actually is no enrichment at all. It is just separation.
How does he write backwards so easily?
Where do we get 1.0043 number from?
First pass through the enrichment cycle concentration is 0.703 and 0.697.
Or you can use natural unenriched Uranium in a CANDU type reactor. Which means your fuel is cheaper, you have less weapons proliferation, and you create less plutonium on the output too. Plus you can even use other power plants "waste", or weapons grade plutonium, as some of your fuel.
PLEASE MAKE A VIDEO ABOUT USING WASTE U238 FROM PRESSURIZED LIGHT WATER REACTORS IN HEAVY WATER REACTORS AND PLEASE MENTION IF IT IS COST EFFECTIVE TO IT. INDIAs EX- TOP NUCLEAR SCIENTEST SAYS IT IS SO.
What s to keep Iran from reprocessing the U238 into Pu239 once they have their reactors up and running. They wouldn't need to refine Uranium any more than 3%.
Several things; they need to enrich to reactor grade to begin with, which requires a large enrichment infrastructure. Infrastructure we've made very expensive through sanctions and famously successful cyber attacks (stuxnet). If you have an enrichment facility you might as well keep enriching until you have bomb grade uranium. Second, the plutonium in the reactor is in the fuel rods with uranium and other transuranics which requires a complicated and expensive reprocessing facility to extract. Then the Pu239 has to be enriched to high purity, though this can be done chemically. Simply enriching uranium to bomb grade might be cheaper as it requires fewer steps. It'd be a good question for the professor.
The energy and space requirement to enrich/reprocess is insane... so much so it can be detected pretty easily by spy planes, or by seeing the impact on the countries electrical grid.
Is U-235 0.711 % everywhere on earth? In seawater? Everywhere in solar system? Everywhere in universe? Why?
What about U-233? Although not naturally occurring; still a very interesting and fissile isotope. Also, no enrichment needed; just breeding.
Indeed, he skipped over a lot of isotopes of uranium. I'm sure this was intentionally done in the interest of time and clarity to discuss the position of reactor fuel.
@@ttystikkrocks1042 I'm pretty sure the only ones with practical uses are 235, 238, and 233, maybe 234.
This man is writing backwards and has better penmanship than me 🤯
What about U308
No it was a extra 3 nuetrons not protons which is why 235-238 subtract those numbers
Can you enrich gold?
Why not use heavy water as a moderator? Can use natural uranium i understand. Wouldn't it be easier to separate heavy water from light water than separate u235 from 238? NIH?
CANDU reactor use that. The problem is it is also hard to concentrate heavy water and they are a major part of the cost of a CANDU reactor. So centrifuge for heavy water or centrifuge for U235, your choice.
@@maggiejetson7904 so dispose toxic waste, and working with corrosive uranium hexafluoride vs water, and the separation process goes on for the life of the plant. How often does the heavy water need refreshing? Imagine the costs of a plant to separate u236 are not insignificant. Heavy water plant not cheap I imagine, but waste disposal has to be easier. Don't need people to wear radiation detectors with water. Don't know, but it seems candu offers some benefits.
@@andrewscott1451 Why don't you ask the Canadian, they have it figured out with the CANDU reactors.
Thanks to you, soon my homemade nuclear bomb will be ready, i want to be superpower in my district
I don't think there will be any notion of a state let alone a district of you detonate it
You can actually get out this debt by providing other countries with better clean energy and to those worrying about what if it blows up while you try to extract it well there must be a chain reaction that's needs to start so without that reaction it's a deadline
Thorium molten salt reactor avoids all this with far less waste.
Oh dear.
Running the calc back to when the Earth formed, gives me a figure of U-235 abundance of 24%
This means that, way back when the Earth was new....
You could make a nuclear bomb using just blacksmith's tools! (supply your own blacksmith of course, not my fault life too so long to get going!)
A simple barrel full of about 300-400kg of pure Pitchblende would not only approach criticality, but drop a second barrel on top of it and it should go supercritical!!! Kaboom.
(or at least one monstrously nasty Fizzle)
How do you get 24% We're only 1 half-life in, so U235 was only 1.4% concentration [remember, U235 half-life is 4.5 billion years, which coincides nicely with the formation of the Earth ~ 4.5 billion years ago, so 2x as much then as now.] Even the most optimistic estimates of the universe's age are ~ 20By, so 2^^5 = 32, 32x .7 = 22.4% U235. But that's only the amount of uranium formed during the big bang; since most of the uranium in the universe originated in later stellar cores & redistributed via supernovae, that calculation is essentially meaningless, esp. when given *most* estimates of the universe's age are
@Ken Shackleton Oops! Too right; had the # for 238 stuck in the register. Where's the embarrassed emoji on this keyboard?..
@@nunyabidniz2868 Sigh.
The info is in the video.
u238 halflife is 4.5billion years, yes.
u235 halflife is 700 million years. a.k.a. 0.7 billion years.
With earth age as roughtly 4.5 billion, it means we are one halflife in for u238 (doubles total)
but we are also 6.4 halflifes in for the u235 (86 times total)
so if we have 100 units of mixed U now (99.3% u238 and 0.7% u235), then at 4.5 billion years ago we had 198.6 of U238 and 60.2 of U235. 60.2/(198.6+60.2) = 60.2/258.8 = 0.2326 fraction, or 23.26%
no talk about laser separation
What he is going to say is basically these huge plants were trying to extract 238 (10% non useful stuff) and make it into 235 (90% good enrichment fuel uranium)
Not exactly, you cannot change 238 into 235, what is going on here is like desalination by removing the things we don't need and increase the concentration of things we do.
thank you for teaching me how to make a nuclear bomb
Or highly grade fuel instead of bomb material I can't change the man's explosion however he provided that rich source of fuel
Assuming energy resources permanently run out, that is to say they are (finite), there is no point in killing each other - USA, N.Korea, Iran and so on, over finite resources because even if anyone emerges as the ultimate winner after killing off all other competitors, that winner will eventually be met with a resource depleted world, meaning they would in the end - after all that murderous struggle & victory, die too. Surely our intellect should enable us to see such an out come.
Assuming that energy resources do not run out permanently - which it seems is the case, but rather there can be periodic shortages, we can do one of two things. Either we continue to kill each other using the resources we have accumulated, from sources that do not run out permanently - a completely and utterly wrong thing to do, to use up the very infinite resources to destroy ourselves, or use those very resources to find more resources there by mitigating the shortages. This choice has been open to us since the dawn of our existence and will always be until we wake up to it.
If we assume that humanity has a half life of 100 million years, the point being it is much less than the half life of elements of Uranium or the sun (sources of energy), this means the human life will run out (extinct) way long before these energy source will do. So these energy resources are infinite with respect to the humans maximum life spun.
It seems we are killing each other under the mistake that resources run out permanently which is not true. They are sometimes in short supply. It is smatter to use the resources to find more because it is endless. I hope we learn this and quickly change. Both war and peace require huge investments one is unquestionably better than the other.
Finally evidently no energy resources have really permanently run out in the last 1000 years. There is only theoretical speculation that they could run out permanently based on a mono-intellectualism.
Heat is what does all the work, we have plenty in the earth's core plus the sun. So what you are saying is the earth will go on but we won't! Greed, arrogance and compacency get in the way of progress.
Long on U stocks
Trying to make a Metal Gear.
Hello FBI, I'm harmlessly curious.
The worry isn't about Iran getting the bomb. It's Iran getting the bomb and Israel immediately launching a nuclear first-strike against Iran that triggers Iran's proxies to attack Israel in response, throwing the entire region into a war that would cause an enormous spike in oil prices.
While that may be part of the political science equation, Iran's history of state-sponsored terrorism and generally bad-neighbor policies to the rest of middle-east make their achieving nuclear capability a scary idea. However, there's no real way to stop them w/o violating their sovereignty. I blame the commander of station during the original attack on the U.S. Embassy in Tehran during the fall of the Shah; his orders not to fire on the attackers violating U.S. soil led to this; a whiff o' the grape at that early stage would have sent a clear message to religious maniacs everywhere they still have to behave like civilized individuals or suffer the consequences...
Someone get me some uranium
Uranium glass antiques. They glow under UV.
Its better to just make U233 from cheap thorium in a LFTR breeder reactor
Two ways you can enrich 238 either turn it into a gas or spin it very fast
The 12 thumbs down came from Iranian students taking this course on-line.
If the Iranians to have a nuclear bomb, it would create so much problems for them, embargoes, sanctions, isolation etc that it makes sense for them to opt out. It is also unIslamic to attack non-combatants ie the women, children etc who perish in a nuclear attack. I do know for a fact that Iran needs a huge amount of energy for its industries and domestic needs.
"It is also unIslamic to attack non-combatants"
Al Taqiya detected
Targeting non-combatants is Islamic as that is what Mohammad did.
wikiislam.net/wiki/List_of_Killings_Ordered_or_Supported_by_Muhammad
Are you saying that the prophet Mohammad, peace be upon him, did un-Islamic things? Totally haram.
@@imonlyamanandiwilldiesomed4406 Prophet Mohamed(PBUH) did not target non combatants. Where did you pick this from? On the other hand he lay the rules of how wars should be fought.
@@mohabatkhanmalak1161 Quran 83:13, 3:86, 33:09, 33:26, 63:7
Are you saying that the Qu'ran, the perfect word of Allah, is false?
@@imonlyamanandiwilldiesomed4406 Shalom...!!
@@mohabatkhanmalak1161 Ah, cute, you think I'm a Jew. I'm not.
Btw, Brazil's clearly demonstrated its technological prowess by building working ultra centrifuges domestically. But US-sponsored lawfare stopped it in its tracks using the lame excuse it was to fight internal corruption.
Still restricted since 1949
Half lives of that isotope is cut into so fourth and keeps going lower in that half-life span
And if those countries also have nuclear weapons let them know what they really have in their hands
Is he writing in reverse 😳
The video is just mirrored
If we could learn to manipulate gravity then enrichment would be easy.
2:20
Am I being explained how to make a nuclear bomb?
If you can build giant centrifuge arrays requiring highly engineered high speed steel...
@@jbrady1725 brb
No, as he clearly stated in the lecture, the information on how to build a Little Boy nuke is already out there in the wild [hint: it's MUCH simpler than building a Fat Man plutonium-based nuke, but of course, the material is much more arduous to concentrate...]
I'm not sure any one person or small group has the capital, know how or oppurtunity to build a nuke.
@@connorrivers798 Actually, the know-how is out there. There was an author a few years back who basically compiled a book on how to build a Little Boy bomb from declassified sources. The only reason we see the *creation* [as opposed to buying mil-surp Russian nukes during the '90s] limited to state-actors is the economies of scale associated with the refining process. But it's entirely within the means of a modern large multinational... [Hughes, Bechtel, etc.]
Well the order that I'm watching the videos and the my downloaded video list is not available to anybody else and so my last comment was on a video unrelated to the video that was in the top of the screen in the Android RUclips app. But I caught the bug before, during this time and I exited from reply and went into I hope just getting to the good stuff video that I just watched comment list. I also hope that the error is only in the display of the two comments for two different videos a moment ago one on top of the other when I was actually about to comment on this third video but that seems unlikely. So I'm going to have to fix that at some point myself and I don't know how I'm going to get a bug report to RUclips but if the channel or could please understand what has happened when I said I finished watching the video in my prior comment I thought it was suspicious because I thought I had already finished watching the video when I made the prior, and of course I had it was just a different video and my last comment was likely the only comment I made on the entire video so my hypothesis which was speculation about why there were two comments there is apparently now in retrospect unknowingly not what I thought I was saying which was not speculation but obvious fact and since it's wrong it was an obvious fact and I hope my speculation is correct about what it in fact was in terms of being speculation as discussed.
Now I used to joke with an electric utility Economist about the tubes that were seized being for swing sets not for the centrifuges and he laughed a lot at that joke but it's not any funnier for me now seeing that the centrifuges are for gas not for what I assumed them to be which is something other than gas spinning gases is something new to me and it seems to be a way to separate water vapor from Air. My understanding is that there is no reaction between the nitrogen and the oxygen in air and H2O molecule so you should be able to spin the air and my team spend a lot of time working out various techniques in terms of for example of vinyl record whether or not you would want to have the water be taken away from the oxygen and nitrogen by pushing it Downstream essentially as it spins and as the groove runs or not Downstream and whether you want the groove to be in the direction of the spin on the disc
I wish i could write backwards
How come it is perfectly fine for USA, Israel, Russia, Pakistan, India, China and even North Korea to own nuclear weapons but there is so much fuss when Iran tries to enrich uranium?
You can't be that naive can you?
Because they want to bomb Israel. God's land.
@@jbrady1725 Instead it's not because it's ''God's land'', it's because Israel has threatened to nuke major cities across the world once they detect a nuke coming their way.
I suggest all nuclear bombs be disabled since they have 90% u 235 they are literally loaded with the good stuff that's if they can do it but to be clear they just need to extract 235 and the nuclear weapons are disabled and we can actually use that source of uranium 235 without spending all this money on the process just one nuclear bomb has 90% of uranium 235 that's 90% not 3% which these reactors produce they are talking about uranium enrichment when their bombs are filled with them
too bad u cant bind an extra electron to one or the other, then ide say a mass driver would be better than a centrifuge. by adding magfeild resonance separataion you could force reject the u235 by mag repulsion while allowing the u238 to passthrough at velocity. also, the gravi sepiration would be much stronger in a particle accelerator than any centrifuge. u might not even need to bind the U to florine at all, using a mass driver like cern. at thoes power levels it wouldn't mater if it was a gas or not just mono molecule it first. ur standard methoid of refinement is outof date sad to say. a modified variant of cern would make a few grams in a matter of days, forget months or years. and thats without electromagnetic passthrough.
This seemed even more impressive when I realised he’s writing backwards on the glass.
the video is flipped horizontally in editing
@@moonasha Maybe look how he writes 1.5 at 10:10
@@ralanham76 The video is flipped horizontally. The buttons on men's blazers are sewn on the right side of the body (perspective of the wearer). The buttons on his blazer appear on the opposite side, thus the image has been flipped.
I agree the video is flipped horizontally... but he's still writing backwards as viewed thru glass. How does that video editing work?
#4
Ah you want a nuclear reactor Iran... then how about a heavy water reactor that can use natural uranium.
Iran already has one.
@@IamJacksColon4 A Heavy water reactor, then what is there excuse for wanting to enrich Uranium.
A heavy water reactor doesn't need enriched Uranium due to the heavy water not eating any neutrons.
@@Etheoma Non of your business dipshit. get it through your fat hamburger brain. you dont dictate what other countries do.
@@IamJacksColon4 what this guy said but in less vulgar terms.. the US sitting on enough bombs to split the planet but hey hey no one else is allowed any
@Lachlan Allen Iran is responsible for destroying ISIS where the west funded them to take down Assad. So who is the fundamentalist here?
Only 3% is reactor fuel
If any body has ever watched BACK TO THE FUTURE...UMMM
You probably on a watch list then I guess.. 😆😆
Page 351
Douay Bible or Version = n an English translation of the Bible
from the Vulgate by Catholic scholars at Douai, a city in N France, in
1610.
February 2023 - Iran has a 84% enriched Uranium, IAEA screwed it again
Never Forget: US invaded Iraq over a lie.
Little boy used average 80% enriched fuel. 90%+ is not required for weaponisation.
Typically, the fuel for US weapons is 93.71%
Same as the fuel for running reactors of the submarines I believe?
@@zapfanzapfan US Naval Nuclear Propulsion reactors are around 97% enriched.
That is impressive. I wonder what the distribution of elements and isotopes looks like after running for 25 years.
@@zapfanzapfan Easy enough to calculate. We can estimate burn-up at end of life, and we know the probability of fission products being produced from thermal fission of U-235.
Yes, I know there is software that can run the calculation but I don't have it.
THE USA DOESNT HAVE CENTIFUG HIGH TECHNOLOGY.
Of course the US trades with and provides aid to Pakistan, India and Israel who each have nuclear weapons and have not signed the Nuclear Non-Proliferation Treaty. Israel got its bomb grade uranium for its first nuclear weapons by stealing it in the 1960s from a US plant in Apollo, PA that made nuclear reactor fuel for the US Navy. To cover the theft, they had to use poor material handling accountability that left the plant as a Superfund site that US taxpayers had to pay to cleanup. It was the sloppy material accounting that made the Atomic Energy Commission suspicious. The CIA later obtained physical evidence from Israel that had the same isotopic signature as the missing uranium.