[FieldTrip] CTF MEG current phantom

McGowin, Inna mcgoiv0 at wfu.edu
Tue Jan 29 19:46:47 CET 2013


Hi Andreas,
The problem is that there are no cables or connecters used for the noise
test study I did on the phantom.
Just the phantom... It seems it has some magnetic contamination and creates
a signal due to vibration.
My next step is to clean thoroughly the phantom, inside and outside, and
see will it help.
Thanks,
Inna

On Tue, Jan 29, 2013 at 2:21 AM, Andreas Wollbrink <a.wollbrink at wwu.de>wrote:

> Hi Inna,
>
> did you fixate the cables and connectors of the Current Phantom?
> Are the cables twisted?
>
> Andreas
>
>
> On 01/28/13 19:59, McGowin, Inna wrote:
>
>> Yes,
>> I run all kind of scans: noise test (good), disconnected phantom
>> (noisy), phantom with dipole removed (noisy), phantom with saline
>> solution removed (noisy); dipole alone (good), saline alone (good).
>>
>> Below is the snapshot for Phantom with no saline solution or dipole:
>> Thanks.Inline image 1
>>
>>
>>
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>>
> --
>
> ==============================**==============================**==========
>
>   Dipl.-Ing. Andreas Wollbrink, Biomedical Engineer
>
>   Institute for Biomagnetism and Biosignalanalysis
>   Muenster University Hospital
>
>   Malmedyweg 15         phone:   +49-(0)251-83-52546
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-- 
Inna McGowin
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