[3dem] MRI close to EM?

[benoit.zuber at unibe.ch]

Hi Johan and Mario

Thank you for your feedbacks!
Glad to hear that Johan :-) That seems to be the way to go for us as well.

All the best
Benoit
________________________________
From: Johan Turkenburg <johan.turkenburg at york.ac.uk>
Sent: 05 July 2022 12:52:46
To: Zuber, Benoît (ANA)
Cc: 3dem at ncmir.ucsd.edu
Subject: Re: [3dem] MRI close to EM?

Hi Benoit,

There was already an MRI machine installed in the building next door when our facility building was designed. In the building we have a 700MHz NMR. We do not have any problems, and when the manufacturer of our Glacios did our room survey, it passed with flying colours. We do not have active field cancellation for our cryo-EM, we didn't need it (but there is trunking in the walls just in case).

We did obtain the installation manuals of the MRI/NMR equipment in which the magnetic fields are described, and where the 0 Tesla line is. This was used to inform our building design. We also made sure there is no steel structure for the building that is continuous between the NMR and EM room, that may have been unnecessary but we didn't want to risk it.

Cheers,

Johan


On Mon, 4 Jul 2022 at 13:42, <benoit.zuber at unibe.ch<mailto:benoit.zuber at unibe.ch>> wrote:

Dear colleagues,


We are planing a new research building in which our EMs (Krios, Aquilos, etc) will be located. An MRI for small animals should be installed in the same building. This machine has not been acquired yet, and the move will likely happen in 7 years.


In the old days, it was clearly not possible to have an MRI near an EM. Yet, it seems that modern MRI come with active field canceling systems so that the electromagnetic field emitted outside the machine is very low and would not be affect the function of an EM nearby.


I heard from one facility with a Glacios located close to an NMR. The head of the facility told me that they have noticed no issue with it. They routinely obtain high-resolution structures with the microscope.


I would be pleased to gather more experiences.

  *   Have you got an MRI/NMR located close to your EM?
  *   Have you noticed interferences?

Many thanks in advance
Kind regards
Benoit

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Dr. Johan P. Turkenburg (he/him)                Senior Technical Specialist X-ray and cryo-EM
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