Dear Ming-Ting:
Since the LCD projector is wrapped by the copper mesh, this mesh ideally will
serve as the purpose to block the RF going in and out. There should be no
damage from
the RF. However, the LCD projector is located in the MR room. The static
magnetic field
(1.5T or higher) may provide some small amount of magnetic force on the
projector or its components.
If this is not a problem, there should not have too much trouble. Make sure
that this projector has good
ventilation to cool the temperature in it.
This is just some analysis from physics point of view.
We did not have a system in the scanner.
Hope this may help.
Wen
Wu ming-ting wrote:
> Dear SPM group:
> I have a question about the enclosure of InFocus LCD projector and would
> like to ask if anyone has the experience.
> I used LCD inside the scan room with copper mesh and cable-filter, we found
> there is no image artefacts or impairment of image quality by the setup.
> Although everything seems O.K. now, we are concerning if the LCD inside the
> scan room will be DAMAGED by the RF or something eventually. I.E., the
> projector has decreased quality after a long run.
>
> We would appreciate anyone who has used setup of LCD-inside for years to
> share his experience about the life-quality of the projector.
> Thanks
>
> Sincerely
>
> Ming-Ting
> =======================================
> Wu, Ming-Ting M.D.
> Department of Radiology, Kaohsiung Veterans General Hospital,
> 386 Ta-chung 1st Rd. Kaohsiung 813, Taiwan
> Tel: 886-7-3462121 ext 6205, 6235
> Fax: 886-7-3468301
> ----- Original Message -----
> From: "Chuang, Kai-Hsiang" <[log in to unmask]>
> To: "Ming-Ting Wu" <[log in to unmask]>
> Sent: Monday, December 24, 2001 9:44 PM
> Subject: Re: enclosure for lcd projector (fwd)
>
> > ---------- Forwarded message ----------
> > Date: Thu, 20 Apr 2000 22:11:15 +0200
> > From: [log in to unmask]
> > To: [log in to unmask], Chris Thomas <[log in to unmask]>
> > Subject: Re: enclosure for lcd projector
> >
> > Hi Chris,
> >
> > the image quality depends on many factors: the projector, the
> > distance between projector and window, mesh size, distance
> > between procetor and projection screen ... So, the experiment
> > will decide ...
> > But of course, the best solution is to send it through without
> > anything between screen and projector.
> > The main problem Robert might have to deal with is the position of
> > the RF waveguide. In most cases they are at positions which are
> > everything than perfect for such a application.
> > Once more: Good look !
> >
> > Sincerely,
> > Lukas
> >
> >
> > --------------------------------------------------------------------------
> ------------------------
> >
> > Lukas Scheef, Dipl. Phys.
> > MR-Tomography
> > Department of Radiology
> > University of Bonn
> > Sigmund-Freud-Straße 25
> > D-53105 Bonn
> > Fax: +49-228-287-6093
> > Phone:+49-228-287-5870
> > E-mail: [log in to unmask]
> >
> >
--
===================================================
Wen-Ching Liu, Ph.D.
Assistant Professor of Radiology
Department of Radiology
University of Medicine and Dentistry of New Jersey
150 Bergen Street
Newark, New Jersey 07103
(voice) 862-973-972-2281
(fax) 862-973-972-0836
====================================================
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