Re: request for coordinates

["Guangliang Yang" <y.guangliang@physics.gla.ac.uk>]

Dear Richard,

    The intersection of the photon beam trajectory and the effective field 
boundary of the magnet is the location of the origin in my Tosca simulation.

    Now I am doing final Tosca calculation for the single magnet tagger.  I 
will send you the map you requested once I finish it.


Cheers

Yang












----- Original Message ----- 
From: "Richard Jones" <richard.t.jones@uconn.edu>
To: "Yang Guangliang" <y.guangliang@physics.gla.ac.uk>
Cc: "Hall D beam working group" <halld-tagger@jlab.org>
Sent: Tuesday, September 09, 2008 3:12 PM
Subject: request for coordinates


> Yang,
>
> Can you tell us your convention for the coordinate system you are using in 
> the Tosca plots in your report?  We are trying to locate the microscope in 
> the tagger hall coordinates, and we are not sure where your origin is. 
> You might add a sentence in your report giving this information, and also 
> the coordinate system orientation which seem to be different from the one 
> we are using to describe the tagger hall geometry in the simulation and 
> drawings.  For the moment, we just need the location of the origin, if you 
> could forward those to us.
>
> As soon as possible, it would be great to get a new field map from you. 
> The grid you used for the map of the two-dipole design would be fine.
>
> thanks,
> Richard Jones
>