[PEPPo] Jlab Spectrometer Field Map

[Paul Gueye]

Hi Serkan,

This is great news. So are you saying that the beam should enter the spectrometer left and down (assuming one is along the beam direction)?

Paul
On May 6, 2012, at 22:42 52, Serkan Golge wrote:

> Hi all,
> 
> I found the issue with spectrometer field map (Jlab). I sent e- beam, as
> if the beam were sent from the polarimeter. The result is attached. The
> beam is completely transmitted to the expected location. In the beam , I
> have not used any kind of offset in any direction. Just lock and load..
> 
> 6.2 MeV was the total energy of the e- beam and 158 A spectrometer
> current. 152 A gave an offset significantly.
> 
> I attached the field map as well. In this attached map, for proper
> bending, one should send the beam from (-x,-z) quadrant.
> -Current is electron mode, +Current is positron mode. So if you plan to
> use this map w/o any modification, T1 tungsten should be located at
> (-228.6 mm,-284.22 mm).
> 
> 
> Serkan<xy_profile.jpg><Spectrometer_Jlab_Map.zip>_______________________________________________
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 Paul Gueye
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