[Eng-div] Fwd: Re: [Accelerator_staff] Accelerator Seminar: Julien Bergoz and Frank Stulle - 4/23/12

[Gayle Coleman]

REMINDER!

On 4/16/2012 9:58 AM, Audrey N. Barron wrote:
>  ACCELERATOR SEMINAR
>
>  "The Goubau Line - A Virtual Beam for Testing of Beam Instrumentation
>  Beyond 1 GHz"
>
>  Julien Bergoz and Frank Stulle
>  Bergoz Instrumentation
>  Saint Genis Poully, France
>
>  Standard setups for testing of beam instrumentation in the workshops
>  usually start to fail when signal frequencies exceed 1 GHz.  A
>  potential improvement could be provided by electromagnetic surface
>  waves which travel along a single wire.  These waves consist of the
>  fundamental TM mode and resemble closely the radial electric and
>  azimuthal magnetic field around a long and thin beam of charged
>  particles.  We explain their fundamental properties, discuss how they
>  can be applied to bench testing of beam instrumentation and compare
>  calculations to measurements up to 8.5 GHz.  A brief introduction to
>  Bergoz  Instrumentation is given to include its human and material
>  resources dedicated to this project.
>
>  Monday, April 23, 2012
>  3:00 p.m.
>  CEBAF Center, Room L102/104


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