[Halld-tagger] Quadrapole location

Alexander Somov somov at jlab.org
Tue Dec 1 08:51:23 EST 2009


Hi Tim,

I think that it doesn't matter, we just need some space for the
quad maintenance. We moved the quad before to be consistent with
Young's field map.

Cheers,
       Sascha



On Mon, 30 Nov 2009, Tim Whitlatch wrote:

> Hello Richard,
>
> After looking at our latest interface drawing, it shows the center of
> the quad .s .839 meters downstream of the radiator, not 0.7M.  Using
> Richards Excel spreadsheet, it does have a small effect on the vertical
> focusing.Should we try to squeeze it upstream more or will it be fine
> where it is?
>
> The interface drawing sheets 1 and 2 are located at;
>
> http://www.jlab.org/Hall-D/software/wiki/index.php/Engineering
>
> Tim
>
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