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Re: Cathode vibration- how to dampen?
On Wed, 20 Feb 2008, Tim Whitlatch wrote:
Dear all,
one other thing to investigate before doing a lot work is what is in the
environment of the fdc which could cause vibrations, like pumps.
Cheers elke
> Date: Wed, 20 Feb 2008 14:22:39 -0500
> From: Tim Whitlatch <whitey@jlab.org>
> To: wcrahen <wcrahen@jlab.org>, halld-tracking-hw@jlab.org
> Subject: Re: Cathode vibration- how to dampen?
>
> Thanks for the heads up Bill. This may or may not be an issue. Dan has
> proposed doing a simple test to determine what frequencies drive the
> oscillations (visible) in the cathode plane. He said the equipment is
> available. Before we spend any time on coming up with solutions, let's
> see what the natural frequencies of the plane are and what driving
> frequencies it will be subject to by way of Dan's simple test. There may
> be no issue at all.
>
> Cheers,
>
> Tim
>
> wcrahen wrote:
> > Brian stopped by to discuss vibration of the cathode planes in the
> > FDC- and any strategies we might have to eliminate motion. He would
> > like to set up a meeting. The first thought is to attach the cathode
> > to the ground plane with some rohacel plugs (we can't have a complete
> > ring if we flow gas through the center).
>
>
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