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Jakob (Jack/Jackie)

@qotca @stux I might have gotten it wrong. I did some searching TM and there are some very similar looking MRI machines but also CT machines. Apparently with the modern MRIs the non-superconductive coils are nowhere near as visible as they were with the really old ones.
So I'm not sure anymore ^^'

6 May at 19:17 | Wall-to-wall | Open on mastodon.chaosfield.at
14 comments
stux⚡

@jakob @qotca I guessed indeed on CT since it came the "closest" but there are indeed MRI's that look a crazy load like this one!

I'm not 100% sure

6 May at 19:18 | Open on mstdn.social
Jakob (Jack/Jackie)

@stux @qotca one pointer could be that it does not have a helium vent pipe but I heard that modern ones recover almost all of the helium in case of a quench so this also isn't a reliable way to tell

6 May at 19:20 | Open on mastodon.chaosfield.at
Jakob (Jack/Jackie)

@stux @qotca also *many* results on google image search seem to be wrong. most results for "MRI without cover" that have visible part numbers are CT scanners...

6 May at 19:22 | Open on mastodon.chaosfield.at
Jakob (Jack/Jackie)

@stux @qotca Ah. Should've thought a bit more about it... MRIs should not need to rotate (they don't have a reason to due to their completely different working principle as far as I know) so this most likely is a CT scanner

6 May at 19:27 | Open on mastodon.chaosfield.at
DELETED
stux⚡

@qotca @jakob Luckily i have not! 😮

i should edit the toot to CT/MRI

6 May at 19:31 | Open on mstdn.social
DELETED replied to stux⚡

@stux @jakob

I've had, maybe, 10.

They sure do spin. And they're loud. The techs give you headphones with your choice of music. And a warm blanket.

No. Metal. Either in, or outside, your body.

Still loud.

6 May at 19:34 | Open on mastodon.social
Jakob (Jack/Jackie) replied to DELETED

@qotca @stux loud yes. spinny not the one I've seen.

6 May at 19:35 | Open on mastodon.chaosfield.at
Unai Herran replied to DELETED

@qotca @stux @jakob after 20 years servicing CTs (and occasionally some MRI) y can promise you there isn’t a rotating part in an MRI. The sound you hear is just the vibration of the coils due to the magnetic field.

6 May at 19:44 | Open on mastodon.social
Jim Hughes ☢️ replied to DELETED
Jakob (Jack/Jackie)

@qotca @stux I've seen one MRI in person doing it's thing and had multiple CT scans done.
The MRI did not spin or had any obvious clues to being spinny (like an audible spinup/spindown phase) while the CT had very obviously a rotating part inside

6 May at 19:32 | Open on mastodon.chaosfield.at
DELETED replied to Jakob
Jakob (Jack/Jackie) replied to DELETED

@qotca @stux there are even open MRI machines that aren't even "donut shaped"

6 May at 19:36 | Open on mastodon.chaosfield.at
Jim Hughes ☢️

@qotca @jakob @stux they do not spin.
Protons within hydrogen atoms spin in MR, but nothing in the MR gantry rotates. Certainly not around the Z axis.

6 May at 21:31 | Open on mastodon.world
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