I would worry about these people. Stupid people are killed everyday in accidents caused by their own stupidity. Unfortunately sometimes they kill innocent people by their deficiency in mental capacity
@mushroomscouser The innocent people in this context are the construction workers, and the stupid person is the guy who hired them to move a pressurized magned on the cheap.
@toresbe The construction worker in question looks like a crane operator to me. As such, I would hope he knows about lifting and the basics of it. Whether a crane or its load fails or falls is a lethal hazard, whether that load is pressurized or whatever.
For those of you discussing LHe vs. LN2, there are two jackets surrounding the magnet coil. A liquid nitrogen jacket containing a liquid helium jacket containing the magnet. The LN2 acts as a super-cold insulator for the LHe that makes the magnet a super-conductor. To quench the magnet there is a small electric heater coil on a segment of the magnet. Heat the magnet slightly to control the rate of quench and the current ramps down.
A completely preventable accident. The magnet should have been quenched and all cryogens removed. The price of the cryogens is insignificant compared to the price of the hardware. The manufacture of the MRI should have had a rep on site to handle the ramp-down. Incompetent rigging from the start.
1) Hoists straps are set up wrong, they are of unequal length as a result the center of gravity is off center.
2) The lifting points are very much below the center of gravity, making this a very difficult and dangerous lift, this means extra care and precautions, no short cuts.
3) There are no guide lines attache to control the load.
4) They left the load unattended, there should always be eyes on the load at every step, the crane operator should rely on some one else to supervise the lift.
First question...why were there any cryogens in a magnet being moved? Second question....did these people LOOK at what they were doing? Cant cure stupid!
@SilentDrapeRunner Yes. Once this magnet was turned right side up it only needed the baffle assembly and burst disk replaced in order to re-cool and refill it. After this incident it was moved to Chicago and has been running fine there for 7+ years.
@SilentDrapeRunner Yes. Once this magnet was turned right side up it only needed the baffle assembly and burst disk replaced in order to re-cool and refill it. After this incident it was moved to Chicago and has been running fine there for 7+ years.
@SilentDrapeRunner Yeah it is considered warm once the liquid is removed. To bring it back cold is expensive. It costs a lot to be removed from the system correctly as well. These guys might have been trying to save money considering their equipment and not removing the liquid before transport.
bravo...It'should be taken out by rad.technician at least they are expert in physics and I'm sure it won't fall,they just strap the machine in a different way
That gas pouring out of there is helium... its used in emergency situations when you must de-magnatize the magnet.... this essentially ruins the machine and literally 3 million bucks is down the toilet! :(
helium doesn't cost that much, the whole scanner does. Quenching a scanner is expensive but you can refill it, as long as you've not done what these guys in the video did... which indeed looks like 3 million bucks down the toilet =P
Cloress1 is right - all that happens when you quench the scanner is the coils become resistive again and any current stored in them will be dissipated as heat, you can charge them up again no problem.
close dude, but no cigar. Liquid nitrogen is 15 year old technology not used anymore. Helium is used to cool the niobium titanium coil to 7 kelvin, making it superconducting. Helium is not used to "neutralize" the magnet, whatever that means.
@grouta Close too, but liquid helium is actually 4 kelvin. I cool down units for a living. Obviously this thing lost vacuum for the cryo's to evacuate like that.
I cannot c.a.n.n.o.t. believe the professional riggers did not see this impending disaster. The lift points should never all be below the center-line of mass, without stabilizing the piece to prevent a flop-over.
@nepegg89 no, the helium is used to cool the superconducting magnet core, allowing it to suck eanough amperage to magnetize a human, it has nothing to do with "de-magnetization" and it didn't ruin the mri, the crane did. learn something.
Wahoo. Nice job chaps. I like the way when they start the lift, you can see it's not hanging straight, they haven't tied the strops to stop them slipping out and the guys are standing underneath it gawping up like a load of cave trolls. Lucky they didn't kill themselves. Those things are heavy. BTW DigitalGhost, I think the pole dancing thing is 'cause some of the MRI nurses/technicians I know pole dance in their spare time & probably posted a vid. Talk about magnetism!
When you lose grip on a load, move it close to the ground, but don't attempt to set it down. Regain control, call a time-out, and re-think. With the load 2 feet above the ground, there is no immediate danger. It does not look like they touched the ground for sure, but something vital ruptured.
That MRI is unbelievably expensive, perhaps 3 million bucks.
wow... look at the related video scroll on the side... in the middle somewhere is something about pole dancing. What the hell dose that have to do with this??? lol
If you got ANY issues with this info, then contact THIS site:
health.howstuffworks (DOT) com/mri4.htm
Superconducting magnets are by far the most commonly used. A superconducting magnet is somewhat similar to a resistive magnet -- coils or windings of wire through which a current of electricity is passed create the magnetic field. The important difference is that the wire is continually bathed in
liquid helium at 452.4 degrees below zero. ^^^^^^^^^^^^^^^^^^^^^^^^^^
Physical Properties * Boiling Point @ 1 atm: -452.1°F (-268.9°C, 4oK) * Freezing Point @ 367 psia: -459.7°F (-272.2°C, 0oK)
Sci-Tech Encyclopedia: Liquid helium;
Helium boils at a substantially lower temperature, 4.2 K (−452°F or −269°C), than any other substance; and below 2.172 K (−455.76°F) the liquid exhibits the extraordinary properties of superfluidity.
You still going to stick to your 174.11548 minimum temp foxwhore?
nah, your the down syndrom here who actually wasted his time looking up some pointless ass numbers just to make you feel toughy on the internet, tell you what next time you come to vancouver. message me, ill show you what a toughy really is.
Nah I dont waste my time looking up anything for morons like you, it was for the benefit of other readers who might be fooled by the stupidity of your posted "fact" and believe it.
Permanent magnets? The main magnet is a big superconducting electromagnet, so it doesn't make sense to me why they would transport it while on. Transport it while off and then slowly charge it with current after it's in place.
Apparently, the amount of money it takes to magnetize and demagnetize it is a lot, by why they don't keep it unmagnetized until it gets there, I have no clue.
Do the google research on the things, it will tell you there are more than one kind of MRI's, some have permanent magnets and are ALWAYS magnetic, and some are SUPER conducting types, some can use BOTH. Also, when you magnetize metal ittends to keep some magnetic charge.
We are not MRI builders here, go read the BUILDER'S info/specs in google- that's where to ask questions.
There are three basic types of magnets used in MRI systems:
A permanent magnet is just that -- permanent. Its magnetic field is always there and always on full strength, so it costs nothing to maintain the field. The major drawback is that these magnets are extremely heavy.
I would worry about these people. Stupid people are killed everyday in accidents caused by their own stupidity. Unfortunately sometimes they kill innocent people by their deficiency in mental capacity
mushroomscouser 2 months ago
@mushroomscouser The innocent people in this context are the construction workers, and the stupid person is the guy who hired them to move a pressurized magned on the cheap.
toresbe 2 months ago
@toresbe The construction worker in question looks like a crane operator to me. As such, I would hope he knows about lifting and the basics of it. Whether a crane or its load fails or falls is a lethal hazard, whether that load is pressurized or whatever.
mushroomscouser 1 month ago
This has been flagged as spam show
For those of you discussing LHe vs. LN2, there are two jackets surrounding the magnet coil. A liquid nitrogen jacket containing a liquid helium jacket containing the magnet. The LN2 acts as a super-cold insulator for the LHe that makes the magnet a super-conductor. To quench the magnet there is a small electric heater coil on a segment of the magnet. Heat the magnet slightly to control the rate of quench and the current ramps down.
QwazyWabbit 3 months ago
Comment removed
QwazyWabbit 3 months ago
A completely preventable accident. The magnet should have been quenched and all cryogens removed. The price of the cryogens is insignificant compared to the price of the hardware. The manufacture of the MRI should have had a rep on site to handle the ramp-down. Incompetent rigging from the start.
QwazyWabbit 3 months ago
@QwazyWabbit It's hard to get good help when you buy MRI's on eBay.
TiredOldFart 1 month ago
Whoops.
MortenErCrazy 3 months ago
That's how you get a second 1.6 million dollar machine immediately.
tazdevil126 5 months ago
Fake and gay XD
4U5513alldaWAY 8 months ago
Oh my god! - Caption competition: "Oooops..."
sbscottmonkey 10 months ago
Who on earth let these guys lift this?! They are incompetent riggers.
wackyvorlon 10 months ago
Fail! I just laughed! Lmao!
TheCrazy243 11 months ago
Comment removed
rrapnek 11 months ago
1) Hoists straps are set up wrong, they are of unequal length as a result the center of gravity is off center.
2) The lifting points are very much below the center of gravity, making this a very difficult and dangerous lift, this means extra care and precautions, no short cuts.
3) There are no guide lines attache to control the load.
4) They left the load unattended, there should always be eyes on the load at every step, the crane operator should rely on some one else to supervise the lift.
trespire 1 year ago 3
First question...why were there any cryogens in a magnet being moved? Second question....did these people LOOK at what they were doing? Cant cure stupid!
pulidogs 1 year ago 2
Can it be refillied and used after such accident?
SilentDrapeRunner 1 year ago
@SilentDrapeRunner Yes. Once this magnet was turned right side up it only needed the baffle assembly and burst disk replaced in order to re-cool and refill it. After this incident it was moved to Chicago and has been running fine there for 7+ years.
rrapnek 11 months ago
@rrapnek yea im sure it only cost them 20-30K for this LOL
MrAnderson234 11 months ago
This has been flagged as spam show
@SilentDrapeRunner Yes. Once this magnet was turned right side up it only needed the baffle assembly and burst disk replaced in order to re-cool and refill it. After this incident it was moved to Chicago and has been running fine there for 7+ years.
rrapnek 11 months ago
@SilentDrapeRunner Yeah it is considered warm once the liquid is removed. To bring it back cold is expensive. It costs a lot to be removed from the system correctly as well. These guys might have been trying to save money considering their equipment and not removing the liquid before transport.
elizabethbland 9 months ago
Einstein at 3:16
CelloJerbear 1 year ago
@CelloJerbear hahahaha
1Mitera 1 year ago
super magnet + steel frame under flat-bed trailer+no stabilizing strap at top of MRI spreader bar = OMG!
wackyrice1 1 year ago
you can just smell the vast ammounts of stupidity involved...
BADtimmay 1 year ago
There goes 3 million dollars, I hope they had insurance.
blizzard242 1 year ago
its good they got the fuck out of the way but they probably lost there jobs
moron726 1 year ago
It looked to me like it got caught up on a tree. Up until then the lift was going OK.
Bloodgod40 1 year ago
It drops at 2:05
TheMaskedUgly 1 year ago
bravo...It'should be taken out by rad.technician at least they are expert in physics and I'm sure it won't fall,they just strap the machine in a different way
iridium40 1 year ago
That gas pouring out of there is helium... its used in emergency situations when you must de-magnatize the magnet.... this essentially ruins the machine and literally 3 million bucks is down the toilet! :(
nepegg89 2 years ago
helium doesn't cost that much, the whole scanner does. Quenching a scanner is expensive but you can refill it, as long as you've not done what these guys in the video did... which indeed looks like 3 million bucks down the toilet =P
Cloress1 2 years ago
Are you sure? I thought the helium is used to keep the coils in a superconducting (freezing) state?
bigtruckguy3500 2 years ago
Cloress1 is right - all that happens when you quench the scanner is the coils become resistive again and any current stored in them will be dissipated as heat, you can charge them up again no problem.
nationssavinggrace 2 years ago
Comment removed
kkjgg112391 2 years ago
close dude, but no cigar. Liquid nitrogen is 15 year old technology not used anymore. Helium is used to cool the niobium titanium coil to 7 kelvin, making it superconducting. Helium is not used to "neutralize" the magnet, whatever that means.
grouta 2 years ago
@grouta Close too, but liquid helium is actually 4 kelvin. I cool down units for a living. Obviously this thing lost vacuum for the cryo's to evacuate like that.
mr18incher 2 years ago
@kkjgg112391 Liquid helium is colder than liquid nitrogen; and is therefor used as the superconducting coolant.
carywat 1 year ago
I cannot c.a.n.n.o.t. believe the professional riggers did not see this impending disaster. The lift points should never all be below the center-line of mass, without stabilizing the piece to prevent a flop-over.
junkdeal 2 years ago
So true indeed. You would think these so-called professionals would know better.
hootinouts 2 years ago
@nepegg89 no, the helium is used to cool the superconducting magnet core, allowing it to suck eanough amperage to magnetize a human, it has nothing to do with "de-magnetization" and it didn't ruin the mri, the crane did. learn something.
WinshieldWiper 2 years ago
think they'll notice?
yarahahrwe 2 years ago
OUCH! There goes $100k worth of liquid helium!
quacktron 2 years ago
Wahoo. Nice job chaps. I like the way when they start the lift, you can see it's not hanging straight, they haven't tied the strops to stop them slipping out and the guys are standing underneath it gawping up like a load of cave trolls. Lucky they didn't kill themselves. Those things are heavy. BTW DigitalGhost, I think the pole dancing thing is 'cause some of the MRI nurses/technicians I know pole dance in their spare time & probably posted a vid. Talk about magnetism!
GsyMoo 2 years ago
When you lose grip on a load, move it close to the ground, but don't attempt to set it down. Regain control, call a time-out, and re-think. With the load 2 feet above the ground, there is no immediate danger. It does not look like they touched the ground for sure, but something vital ruptured.
That MRI is unbelievably expensive, perhaps 3 million bucks.
TroyaE117 3 years ago
is it really that much, 3 mill?
edBOYedBOY 2 years ago
That's an uncontrolled quench - liquid helium or nitrogen escaping & very dangerous.
fakegjfkler 2 years ago 6
Bloody hell! They are lucky it didn't explode due to the venting.
wisteela 3 years ago
wow... look at the related video scroll on the side... in the middle somewhere is something about pole dancing. What the hell dose that have to do with this??? lol
DigitaIGhost 3 years ago
I wonder how many boys got fired by this.
Awesome
sirfreakman 3 years ago 6
haha when they got death the get a darwin award haha
XOROHN 3 years ago
Fail.
Tuttle9955i 3 years ago
ummmmm, this could have all been avoided if they used the same length straps...
iamsuperbleeder 3 years ago
If you got ANY issues with this info, then contact THIS site:
health.howstuffworks (DOT) com/mri4.htm
Superconducting magnets are by far the most commonly used. A superconducting magnet is somewhat similar to a resistive magnet -- coils or windings of wire through which a current of electricity is passed create the magnetic field. The important difference is that the wire is continually bathed in
liquid helium at 452.4 degrees below zero. ^^^^^^^^^^^^^^^^^^^^^^^^^^
lostnyc2 3 years ago
From Harvard University;
Liquid helium;
Physical Properties * Boiling Point @ 1 atm: -452.1°F (-268.9°C, 4oK) * Freezing Point @ 367 psia: -459.7°F (-272.2°C, 0oK)
Sci-Tech Encyclopedia: Liquid helium;
Helium boils at a substantially lower temperature, 4.2 K (−452°F or −269°C), than any other substance; and below 2.172 K (−455.76°F) the liquid exhibits the extraordinary properties of superfluidity.
You still going to stick to your 174.11548 minimum temp foxwhore?
lostnyc2 3 years ago
you goof ball i was being a tard to see if anyone cought on for fuck sakes your an asshole. :D
foxwhore 3 years ago
Well the way I see, YOU are the asshole wasting your time playing games and you just showed everyone else tht as well.
lostnyc2 3 years ago
nah, your the down syndrom here who actually wasted his time looking up some pointless ass numbers just to make you feel toughy on the internet, tell you what next time you come to vancouver. message me, ill show you what a toughy really is.
foxwhore 3 years ago
Nah I dont waste my time looking up anything for morons like you, it was for the benefit of other readers who might be fooled by the stupidity of your posted "fact" and believe it.
lostnyc2 3 years ago
They must have damaged it near the end, releasing the pressurized liquid helium that's used to supercool the magnet, it's about -452 F
lostnyc2 3 years ago
They transport it while magnetized?
jigglesnap 3 years ago
Yeah, there's permanent magnets in there, the suckers are DANGEROUS if not properly moved, set up or worked around.
lostnyc2 3 years ago
Permanent magnets? The main magnet is a big superconducting electromagnet, so it doesn't make sense to me why they would transport it while on. Transport it while off and then slowly charge it with current after it's in place.
jigglesnap 3 years ago
Apparently, the amount of money it takes to magnetize and demagnetize it is a lot, by why they don't keep it unmagnetized until it gets there, I have no clue.
ECWNET 3 years ago
Do the google research on the things, it will tell you there are more than one kind of MRI's, some have permanent magnets and are ALWAYS magnetic, and some are SUPER conducting types, some can use BOTH. Also, when you magnetize metal ittends to keep some magnetic charge.
We are not MRI builders here, go read the BUILDER'S info/specs in google- that's where to ask questions.
lostnyc2 3 years ago
its not even possible on earth yet, to get anything that cold. the max we can reach is 174.11548 WITH 2.3 million DOLLAR LASERS.
foxwhore 3 years ago
Well then READ THIS, abbreviated here:
MRI Magnet
There are three basic types of magnets used in MRI systems:
A permanent magnet is just that -- permanent. Its magnetic field is always there and always on full strength, so it costs nothing to maintain the field. The major drawback is that these magnets are extremely heavy.
lostnyc2 3 years ago
and quenchinｇ・・・,too.
NIKE900Rninja 3 years ago
whoa thats crazy! wasn't expecting what happened at the end!
redstone31 3 years ago